IBPS AFO 2018 — Agri Master Mind

✅Explanation:Wheat is considered a temperate crop based on climate. Temperate crops thrive in moderate temperature conditions, typically in regions with distinct seasons. Wheat is well-suited to temperate climates, requiring cool temperatures during the growing season and a period of winter chill for proper development. In contrast, crops like oats, lentils, and pigeon peas may be better adapted to different climate zones, such as cooler or warmer environments.🔴Additional informationTemperate crops:These are crops that are usually grown in cold climates.The temperate regions are located between latitude 35°N and latitude 66.5°S of the equator.Ex: Strawberry, Apple, Pear, etcTropical crops:These are crops that are usually grown in warm to hot climates.These are crops that are usually grown in warm climates.Ex: Mango, Papaya, Cashew, etcSubtropical crops:These are crops that are usually grown in warm to hot summers and cool to mild winters.Ex: Ber, Fig, Grape, etc.

✅Explanation:Totapuri is a variety of mango predominantly grown in the state of Karnataka, India. Known for its distinct elongated shape and tangy taste, Totapuri mangoes are widely cultivated in Karnataka and are used in various culinary applications, including the preparation of pickles, chutneys, and beverages.

✅Explanation:The Ratna mango is indeed a hybrid variety developed by crossing Neelam and Alphonso mangoes. This crossbreeding aimed to combine desirable traits from both parent varieties. Alphonso is known for its rich flavor and aroma, while Neelam is appreciated for its regular bearing and yield. Ratna inherits a good balance of these qualities, offering a delicious [flavor].🔴Additional informationCross Variety of MangoesNeelam × Dashehari -MALLIKADashehari × Neelam - AMRAPALI (DNA*)Neelam × Alphanso - RATNA (RNA*)Banganpalli × Alphanso - ARKA ARUNAAlphanso × Neelam - ARKA NEELKIRAN

✅Explanation:Humid areas typically experience high levels of rainfall, and a yearly precipitation exceeding 1000 mm is common in such regions.

✅Explanation:High-volume sprayers are designed to deliver large amounts of liquid per hectare, typically exceeding 150 l/ha. This ensures thorough coverage of the target area, which is essential for applications like:Orchard spraying: Where dense foliage requires a high volume of spray to reach all parts of the trees.Field crop applications: Especially for herbicides or fungicides where complete coverage is critical for effectiveness.Spraying large areas: High-volume sprayers are efficient for covering extensive fields or plantations quickly.

✅Explanation:Drip irrigation is a highly efficient method of delivering water directly to the root zone of plants. This minimizes water loss due to evaporation, runoff, and wind drift. Because water is applied slowly and precisely where it's needed, plants can utilize almost all of it, leading to very high efficiency rates.🔴Additional informationDrip irrigationIt is also called trickle irrigation is used in areas with water scarcity and salt problems.It involves the slow application of water, drop by drop to the root zone of a crop, water seeps from these holes drop by drop, hence the name drip irrigation.Water-saving 50-70% as compared to surface irrigation. The difference in water delivery rate between extreme emitters should not exceed 10%Water discharge rate is generally 1-4 lit/hr. at 1.5-2.5 kg/cm2 pressure.The water use efficiency of drip irrigation is 95%Most suitable for widely spaced crops, orchards trees, and greenhouses. Advantage of drip irrigation:​​Increased water use efficiencyHigh crop yieldUniform and better quality of the produceEfficient and economic use or fertilizer through fertigationLess weed growthMinimum damage to the soil structure and reduction in soil erosionUsage in undulating areas and slowly permeable soilLow energy requirement i.e. labor-saving

✅Explanation:Poultry manure, particularly chicken manure, is exceptionally rich in calcium. This is primarily due to their diet, which often includes calcium supplements for strong eggshells. The high calcium content makes poultry manure a valuable fertilizer for improving soil health and providing essential nutrients for plant growth.Other Options Explanations:Option A: Cow: Cow manure is richer in nitrogen and potassium, making it beneficial for overall plant growth and soil fertility.Option C: Human: Human waste, or night soil, can be used as fertilizer in some contexts.Option D: Earthworm: Earthworm castings (worm manure) are known for their rich nutrient content and beneficial effects on soil structure. However, Earthworm castings excel in providing a balanced blend of nutrients and improving soil aeration and water retention.🔴Additional informationPoultry Manure: The excreta of birds ferment very quickly. If left exposed, 50 percent of its nitrogen is lost within 30 days. Poultry manure contains higher nitrogen and phosphorus compared to other bulky organic manures. The average nutrient content is 3.03 per cent N; 2.63 per cent P2O5 and 1.4 per cent K2O.Concentrated organic manuresConcentrated organic manures have higher nutrient content than bulky organic manure. The important concentrated organic manures are oilcakes, blood meal, fish manure etc. These are also known as organic nitrogen fertilizer. Before their organic nitrogen is used by the crops, it is converted through bacterial action into readily usable ammoniacal nitrogen and nitrate nitrogen. These organic fertilizers are, therefore, relatively slow acting, but they supply available nitrogen for a longer period.

✅Explanation:The Integrated Scheme for Agricultural Marketing (ISAM) was indeed introduced in 2014. This scheme was launched with the goal of streamlining and strengthening agricultural marketing in India. It aimed to improve market infrastructure, promote better grading and standardization of produce, and facilitate the development of agribusiness.🔴Additional informationIntegrated scheme for Agricultural Marketing (ISAM) was started in April 1, 2014 with Rs. 4500 crore outlay.This scheme not only provides the basic infrastructure but also promotes innovative and latest technologies in agricultural marketing infrastructure, encouraging private and cooperative sector investments. Objective of this scheme:Promotion of agri-marketing through creation of marketing and agribusiness infrastructure including storageIncentivize agri-market reformsProvide market linkages to farmersProvide access to agri-market informationSupport quality certification of agriculture commodities.

✅Explanation:The Karan Fries breed was developed at the National Dairy Research Institute (NDRI), Karnal, Haryana, India. This institute focuses on dairy research and animal husbandry. The breed was created by crossing Tharparkar cows (an indigenous breed) with Holstein-Friesian bulls to improve milk production and adaptability to Indian conditions.Key pointsKaran Swiss is a composition breed of cattle developed in India at the National Dairy Research Institute of India (NDRI) Karnal by crossing Sahiwal and Brown Swiss breed cows.

✅Explanation:SNF stands for Solids-Not-Fat. These are the components of milk that remain after the fat and water are removed. SNF includes proteins, carbohydrates (mainly lactose), vitamins, and minerals. Buffalo milk has the highest SNF content among the given options.

✅Explanation:Iron is a micronutrient, which means it is required by plants in smaller quantities compared to macronutrients like nitrogen. Micronutrients are essential elements that play crucial roles in plant growth and development. Other Options Explanations:Option A: Iron - Iron is crucial for chlorophyll synthesis, which is essential for photosynthesis. A deficiency in iron can lead to yellowing of leaves (chlorosis).Option B: Nitrogen - While nitrogen is essential for plant growth and is a key component of amino acids, proteins, and nucleic acids, it is still considered a micronutrient in the context of plant nutrition.Option C: Manganese - Manganese plays a vital role in photosynthesis, enzyme activation, and nitrogen metabolism.🔴Additional information Nutrients are the substances that are required by the organism/ plant to survive, grow, and reproduce.In the case of plants, different nutrients are absorbed by the roots and are then transported to the rest of the plant body.Plant nutrients are classified into two groups: Macronutrients and MicronutrientsMacronutrients:Macronutrients are needed in larger amounts by the plant tissues for their survival, growth, and other essential functions.Carbon (C), hydrogen (H), oxygen (O), nitrogen (N), phosphorus (P), sulfur (S), potassium (K), calcium (Ca), and magnesium (Mg) are the macronutrients required by plants.Micronutrients:Micronutrients are needed in smaller amounts by the plant tissues.Micronutrients required by plants are iron (Fe), manganese (Mn), copper (Cu), molybdenum (Mo), zinc (Zn), boron (B), chlorine (Cl), and nickel (Ni).Important PointsNecrosis is a condition wherein cells or tissues die due to some underlying problem.In the case of plants, leaf necrosis is a symptom or a sign of distress/disease in plants.During necrosis parts of the plant like the leaf starts appearing yellow or wilt away.Causes of necrosis:DiseaseWater quality and availabilityClimatic changesInsect activityNutrient deficiencyBlack necrosis is one such symptom seen in plants due to a boron deficiency.Boron deficiency:Boron deficiency is specifically seen in young leaves or terminal buds.Due to boron deficiency, the terminal buds of the young leaves become light at the base.It develops whitish-yellow spots on the base of the leaves.Leaves become brittle and twisted.Leaves finally die due to acute deficiency.

✅Explanation:The Central Avian Research Institute (CARI) was established in the year 1979. It is a premier research institute in India dedicated to poultry research and development. CARI focuses on the advancement of technology and scientific knowledge related to poultry farming, genetics, nutrition, and disease control, contributing significantly to the growth and improvement of the poultry industry in the country.

✅Explanation:Alley cropping is a specific type of agroforestry where crops are grown in alleys formed between rows of trees or shrubs. This system provides several benefits, including:Improved soil fertility: The trees or shrubs can help improve soil health by adding organic matter and nutrients.Reduced erosion: The trees or shrubs can help to reduce soil erosion by wind and water.Increased crop yields: In some cases, alley cropping can lead to increased crop yields due to improved soil conditions and microclimate.Diversification: Alley cropping can help farmers diversify their income by providing both crops and tree products.Other Options Explanations:Option A: Mixed farming: Mixed farming generally refers to a system where crops and livestock are raised on the same farm.Option C: Ley cropping: Ley cropping involves rotating fields between periods of crop production and periods of growing a forage crop (like clover or alfalfa) that is then plowed under to improve soil health.Option D: Intercropping: Intercropping involves growing two or more crops simultaneously in the same field. Intercropping can increase biodiversity and help control pests and diseases.Key PointsAlley cropping: It is a type of agroforestry system that involves perennial hedges along with agricultural crop production.Alley cropping is the cultivation of food, forage, or specialty crops between rows of trees. It is a larger version of intercropping or companion planting conducted over a longer time scale. Alley cropping can provide profitable opportunities for row crop farmers, hardwood timber growers, nut growers, and Christmas tree growers.

🔴Additional information:Under the Pradhan Mantri Fasal Bima Yojana (PMFBY), the premium interest paid by farmers for commercial and horticulture crops is 5%. This means that farmers are required to contribute 5% of the total premium amount, with the remaining portion subsidized by the government. This initiative aims to provide affordable crop insurance to farmers, mitigating their financial risks in case of crop failure due to various factors such as natural calamities or pests.Key PointsPradhan Mantri Fasal Bima Yojana - Providing insurance cover to crops.Pradhan Mantri Krishi Sinchayi Yojana - Per Drop More Crop.Pradhan Mantri Gram Sadak Yojana - All-Weather Road connectivity to unconnected villages.Pradhan Mantri MUDRA Yojana - Aims to provide formal access to financial facilities to non-corporates, small businesses.

🔴Additional information:Under the Pradhan Mantri Fasal Bima Yojana (PMFBY) in India, farmers are required to pay a premium for insuring their kharif crops. For kharif crops, the premium paid by the farmer is 2%.The PMFBY's structure with its low premium rates is designed to provide financial security to farmers and encourage them to adopt modern agricultural practices without the fear of significant losses due to unforeseen events.

Key Points:Pradhan Mantri Krishi Sinchayee Yojana is launched by the Indian Government for agriculture & irrigation. Pradhan Mantri Krishi Sinchai Yojana (PMKSY) was launched on 1st July 2015.PMKSY is implemented to expand the cultivated area for irrigation. Its main logo is ‘Har Khet Ko Pani’.Pradhanmantri Krishan Sinchai Yojana is constituted under the chairmanship of vice-chairman, NITI Aayog. The broad objectives of Pradhan Mantri Kisan Sinchai Yojana are to include irrigation at the field level ‘more crop per drop’.The Government of India has launched the Pradhan Mantri Kisan Sinchai Yojana aimed at the development of irrigation sources for providing a permanent solution to drought.PMKSY promotes extension activities relating to water harvesting, water management and crop alignment for farmers and grass root level field functionaries. Krishi Sinchayee Yojana with an outlay of Rs.50,000 crores for a period of 5 years (2015-16 to 2019-20) is to achieve convergence of investments in irrigation at the field level.

✅Explanation:To encourage timely loan repayment, the government often provides incentives to farmers in the form of lower interest rates. This not only helps farmers save money but also ensures the efficient functioning of agricultural credit systems. In this case, the 4% interest rate is a special provision for farmers who demonstrate financial discipline by repaying their loans on time.

✅Explanation:Cotton exhibits a relatively high tolerance to salinity compared to many other crops. It can withstand higher concentrations of salt in the soil and irrigation water without significant yield reduction. This makes it a suitable choice for cultivation in areas affected by salinity, such as coastal regions or those with saline groundwater. Data for threshold salinity levels of different field crops formatted for readability:Rapeseed/Canola: 11.0 dS/mGaur: 8.8 dS/mBarley: 8.0 dS/mCotton: 7.7 dS/mSugarbeet: 7.0 dS/mSorghum: 6.8 dS/mWheat: 6.0 dS/mSoybean: 5.0 dS/mGroundnut: 3.2 dS/mRice: 3.0 dS/mMaize: 1.7 dS/m

✅Explanation:The highly salt-degraded state among the options is Gujarat (option b). Salt degradation in soil refers to the accumulation of salts, which can adversely affect soil fertility and crop growth. Gujarat is known for its arid and semi-arid regions, where water scarcity and improper irrigation practices can lead to the accumulation of salts in the soil, contributing to a highly salt-degraded state.

✅Explanation:Power tillers were first introduced in India in 1963. These small, engine-powered cultivators were seen as a way to increase agricultural productivity, especially for small-scale farmers who couldn't afford larger tractors.

✅Explanation:Papaya was introduced in India in the 16th century. The answer (a) indicates that the introduction of papaya to India occurred during this period. The cultivation and spread of papaya in the country can be traced back to historical trade and exploration activities, bringing this tropical fruit to the Indian subcontinent during the 16th century.

✅Explanation:The National Forest Policy of 1988 in many countries, including India, aims to maintain 33% of the total geographical area under forest cover.Key PointsThe National Forest Policy in India is launched to bring a minimum of one-third of India’s total geographical area under forest or tree cover.The first edition of the National Forest Policy in India took effect in 1952. India launched its second edition of the National Forest Policy in 1988.The national forest policy 1988 aims at the maintenance of environmental stability through preservation and restoration of ecological balance.The national forest policy in 1988 is now replaced by the draft national forest policy in 2018.The new draft national forest policy 2018 was launched in March 2018.The new policy focuses on the international challenge of climate change. It was published by the ministry of environment, forest, and climate change. Bhupender Yadav is the current minister responsible for the ministry of environment, forest, and climate change.🔴Additional informationThe Wildlife Protection Act in India was enacted in 1972.The Forest Conservation Act in India was enacted in 1980.The Environment Protection Act India was enacted in 1986.Central Forest Research Institute is situated at Dehradun.The largest forest area in India - Madhya Pradesh.The least forest area in India - Haryana.World Forest Day - 21st March.

✅Explanation:Clean tillage is a method where the soil is completely inverted and pulverized, leaving no plant material on the surface. This aggressive form of tillage is designed to eliminate weeds, bury crop residue, and create a uniform seedbed. It ensures that no plant, whether it's a crop residue or a weed, is left undisturbed.Other Options Explanations:Option A: Deep tillage involves breaking up the soil to a greater depth than conventional tillage.Option C: Subsoiling focuses on breaking up compacted layers of soil below the surface. It's done to improve water infiltration and root growth. Subsoiling typically doesn't disturb the topsoil layer or existing vegetation.Option D: Year-round tillage refers to the practice of tilling the soil multiple times throughout the year.

✅Explanation:Relative humidity plays a crucial role in crop production, influencing various physiological processes like transpiration, nutrient uptake, and photosynthesis. While the ideal humidity range varies slightly depending on the specific crop and its growth stage, a relative humidity of 30-40% is generally considered optimal.Relative humidity:It is defined as the ratio of the mass of water vapor in a certain volume of moist air to the mass of water vapor in the same volume of saturated air at the same temperature.It is denoted by ϕ.

✅Explanation:The Indian Veterinary Research Institute (IVRI) was instrumental in developing the first vaccine for Rinderpest. This was a crucial step in controlling this devastating cattle disease. IVRI, located in Izatnagar, Uttar Pradesh, has a long history of contributing to animal health and welfare in India.🔴Additional information:Rinderpest was a disease caused by the rinderpest virus which primarily infected cattle and buffalo.It is an acute viral disease of cattle, especially buffalo.Infected animals suffered from symptoms such as fever, wounds in the mouth, diarrhea, discharge from the nose and eyes, and eventually death.

✅Explanation:The Ranikhet disease, also known as Newcastle disease, is a highly contagious viral disease affecting poultry. The vaccine for this disease was developed at the Indian Veterinary Research Institute (IVRI). IVRI is India's premier institute for animal science research and is dedicated to improving animal health and production.Key PointsRanikhet is a Viral disease.This disease is also called New Castle Disease or Doyle’s disease.This is an acute viral disease of poultry characterized by involvement of the respiratory system, drop in egg production and death in severe cases.The host includes chicken, turkey, guinea fowls, ducks, doves, geese, pigeons, pheasants, crows, sparrows, and other free-flying birds. This virus has a zoonotic effect and can cause harm to human health.Exposure of humans to infected birds can cause mild conjunctivitis and influenza-like symptoms, but the Newcastle disease virus (NDV) otherwise poses no hazard to human health. Chicks are highly susceptible, adults are less susceptible.It is caused by Paramyxovirus type1 (PMV-1 belongs to the genus Avulavirus, family Paramyxoviridae).Various physical (heat, irradiation and pH effects) and chemical compounds (potassium permanganate, formalin, ethanol, etc.) can destroy the virus. The disease can be prevented effectively by an integrated approach of vaccination, proper management and strict biosecurity.Newcastle disease was first identified in Java, Indonesia, in 1926.

✅Explanation:Alkaline soil typically has a pH level above 7. A pH greater than 8.2 indicates a strongly alkaline soil, which may not be suitable for certain plants that prefer a more neutral or slightly acidic environment.Key Points:Soil can be classified according to their pH values.pH value from 6.5 to 7.5 is considered as neutral.pH value over 7.5 is alkaline.pH value less than 6.5 is acidic.Soils with pH less than 5.5 are considered strongly acidic.

✅Explanation:The electrical conductivity of saline-alkaline soil is typically expressed in deciSiemens per meter (dS/m). A value greater than 4 dS/m (decisiemens per meter) indicates a high level of electrical conductivity, which is associated with increased soil salinity.

✅Explanation:Disc plough: - A disc plough is a tillage equipment used for primary tillage to break and invert the soil. It typically consists of a series of individual concave cutting discs mounted on a common shaft. The width of a disc plough is determined by the number and size of the discs. It is generally narrower compared to other tillage implements. Disc ploughs are suitable for breaking hard and compacted soils, and their design allows for efficient soil inversion.Key points:Disc Plough: As the name implies it is in the form of a disc.Disc plows are designed to reduce friction by making a rolling plow bottom instead of a sliding plow bottom. It cuts, inverts, and in some cases breaks furrow slices by means of separately mounted large steel discs to one side.

✅Explanation:Calcium deficiency in plants often manifests as stunted growth and deformed young leaves, particularly at the growing tips. The leaves may appear distorted, curled, or hooked, and can become brittle and necrotic (dead) at the edges. A lack of calcium disrupts cell wall formation, leading to the gelatinous material and the inability of the leaves to properly unfold.Other Options Explanations:Option A: Iron - Iron is crucial for chlorophyll production, and its deficiency typically causes interveinal chlorosis (yellowing between the leaf veins), especially in younger leaves.Option B: Zinc - Zinc is essential for plant growth hormones and enzyme activity. Zinc deficiency can lead to shortened internodes (spaces between leaves on the stem), resulting in a rosette-like appearance, and smaller, distorted leaves.Option C: Copper - Copper plays a role in photosynthesis and enzyme function. Copper deficiency can cause the leaves to wilt, become dark green, and twist. In some cases, the leaves may also exhibit necrotic spots.

✅Explanation:In aquaculture, lime is often used to adjust and stabilize the pH of the water. The lime requirement depends on the initial pH of the water and the desired target pH. The given pH range is 5.1 to 6.5, and to increase the pH to the suitable level, lime needs to be added.In the given scenario, the specific values for the initial and final pH, ANC, and correction factor are not provided. However, based on aquaculture practices, a common lime application rate for ponds with pH in the range of 5.1 to 6.5 could be around 1000 kg per hectare.

✅Explanation:Teak is renowned for its durability, strength, and resistance to decay, making it an excellent choice for plywood used in high-quality furniture, boatbuilding, and exterior applications. Its natural oils provide water resistance and dimensional stability.🔴Additional information:Teak (Tectona grandis)Wood: Strong, durable, termite-resistant, water-resistant.Uses: Furniture, decking, shipbuilding.Growth: Needs tropical climate, deep and fertile soils.Babool (Vachellia nilotica)Wood: Hard, termite-resistant, often used as fuelwood.Uses: Firewood, furniture, traditional medicine, gum production.Growth: Thrives in arid areas, drought-resistant.Eucalyptus (Eucalyptus spp.)Wood: Durable, used in construction and paper.Uses: Timber, pulp, paper, essential oils, medicinal purposes.Growth: Prefers well-drained soils, moderate to warm climate, fast-growing.Sandalwood (Santalum album)Wood: Aromatic, dense, highly valuable.Uses: Incense, perfumes, essential oils, traditional medicine.Growth: Needs hot climate, dry, well-drained soils, slow-growing.

✅Explanation:Magnesium is the central atom in the chlorophyll molecule. It plays a crucial role in capturing light energy during photosynthesis. Without magnesium, chlorophyll cannot be synthesized, and plants would not be able to produce their own food.Key Points:NitrogenRole: Most essential macronutrient for plants.Functions: Vital for amino acids, proteins, and enzymes.Key component of chlorophyll for photosynthesis.Required by all plant parts, especially meristematic and active cells.Additional Macronutrient InformationTypes of Macronutrients: Primary: Nitrogen, Phosphorus, Potassium.Secondary: Calcium, Magnesium, Sulfur.Primary Macronutrients: Nitrogen: Necessary for amino acids, proteins, DNA/RNA; vital for growth and cell division.Phosphorus: Encourages root growth, supports photosynthesis, respiration, and cell division.Potassium: Aids in carbohydrate metabolism, starch translocation, disease resistance, and winter hardiness.Secondary Macronutrients: Calcium: Enhances fruit quality, regulates hormones, supports cell division.Magnesium: Central to chlorophyll, aids phosphorus mobility.Sulfur: Essential for amino acids, enzymes, vitamins, oil content, and seed formation.

✅Explanation:Groundnut, also known as peanut, has a high demand for phosphorus (P2O5) for optimal growth and development. Phosphorus is crucial for:Nodulation: Groundnut is a legume, and phosphorus plays a vital role in nitrogen fixation by promoting the formation of root nodules that house nitrogen-fixing bacteria.Oil Production: Adequate phosphorus is essential for the synthesis and accumulation of oil in groundnut seeds, which is the primary economic product.Early Growth: Phosphorus supports vigorous root and shoot development in the early stages of growth, ensuring a strong foundation for the plant.🔴Additional informationGroundnut oil or peanut oil is a pure edible oil.Its major component fatty acids are oleic acid (46.8% as olein), linoleic acid (33.4% as linolein), and palmitic acid (10.0% as palmitin). Groundnut oil has a higher smoking point (225°C) than many other cooking oils.It can be also used to make soap through the process of saponification.It contains 17% saturated fat, 46% monounsaturated fat, and 32% polyunsaturated fat.The oil is rich in vitamin E.Important PointsGroundnut oil is obtained from Arachis hypogaea.The common name of Arachis hypogaea is peanut or groundnut.It belongs to the family Fabaceae, the pea family.Most of the species of this family are grown for their edible seeds.It is an annual herbaceous plant.Groundnuts are rich in proteins, fats, vitamin B- complexes, vitamin E, fibers, and dietary minerals, such as manganese, phosphorus, zinc, potassium, magnesium, etc.Like other legumes, groundnuts also have symbiotic nitrogen-fixing bacteria in root nodules.Due to their ability to fix nitrogen, peanuts use less nitrogen-containing fertilizer and enhance soil fertility, making them useful in crop rotations.

✅Explanation:Commonly, rice bran is included in fish feed at around 20% to 32%, depending on the overall composition of the feed. Rice bran is a valuable ingredient in fish feed due to its nutritional content, including proteins, fats, and carbohydrates. It is often used as a cost-effective source of energy and protein in aquaculture feeds.

✅Explanation:The breed tract of Murrah buffalo is Rohtak, Hisar and Jind of Haryana.The breed characteristics are massive body, neck and head comparatively long, horns short and tightly curled. The colour is usually jet black, with white markings on tail.The average milk production per lactation is 1500 - 2500 kg. and the heritability of this trait is 0.2-0.3.The age at first calving is 45 - 50 months in villages but in good herds it is 36 - 40 months and inter-calving period is 450 - 500 days.

🔴Additional informationCare and management of newborn calf: Feed the Colostrum within 15 minutes of calving.The calf should be fed with colostrum at the rate- 1/10th of body weight and buffalo calves at the rate -1/15th of body weight.Colostrum containing low fat, high protein, vitamins, and minerals forms a balanced feed for new-born calves.This helps to protect the calf against various diseases as it contains antibodies.Colostrum also helps to eliminate the material accumulated in the digestive tract before it was born.

✅Explanation:In the early stages of calf feeding, the weight gain can vary based on factors such as breed, genetics, health, and the nutritional management provided. However, a common and reasonable range for the daily weight gain of a well-fed calf in its early age is around 0.4-0.5 kg.

✅Explanation:Sugar beet is a perennial crop, meaning it lives for more than two years. It is also antigenic, meaning it stimulates an immune response in the body. This is because sugar beet contains proteins that can trigger the production of antibodies. These antibodies can help to protect the body against diseases.Based on Ontogeny (Life cycle):Annual crops:Crop plants that complete the life cycle within a season or year.They produce seeds and die within the season.Examples: Wheat, rice, maize, mustard.Biennial crops:Plants that have a life span of two consecutive seasons or years.First years/season, these plants have purely vegetative growth usually confined to a rosette of leaves. The taproot is often fleshy and serves as a food storage organ. During the second year/season, they produce flower stocks from the crown and after producing seeds the plants die.Examples: Sugar beet, beetroot. Perennial crops:They live for three or more years.They may be seed-bearing or non-seed bearing.Examples: Napier fodder grass, coconut.

✅Explanation:Power sprayers are designed for various tasks like spraying pesticides, herbicides, and fertilizers in agriculture, horticulture, and gardening. A 3-5 HP engine provides sufficient power to generate the necessary pressure for effective spraying while maintaining portability and fuel efficiency.🔴Additional information:Based upon the volume of liquid-handled sprayers classified into:High-volume sprayer (more than 400 liters/ha)Low-volume sprayer (5 to 400 liters/hectare)Ultra-low volume sprayer (ULV) spray (less than 5 liters/ha).

✅Explanation:Planter: Planters typically require less draft per unit width compared to some other tillage implements. This is because planters are designed to make precise seed placements rather than extensively disturb the soil.Other Options Explanations:Option A: Harrow: Harrows are used for secondary tillage operations like breaking up clods, leveling the soil, and removing weeds.Option C: Plough: Ploughs are primary tillage implements used for deep soil inversion. They cut and turn the soil, requiring significant force to overcome the soil resistance.Option D: Rotavator: Rotavator (or rotary tiller) is used for seedbed preparation and weed control. It pulverizes the soil with rotating blades.

✅Explanation:The choice of tractor horsepower (H.P.) depends on various factors, including the size of the land, the type of crop, and the specific agricultural operations involved. For cultivating land of around 40 hectares for monocropping, a tractor with approximately 25 horsepower is needed.🔴Additional information:Here's a general guideline for tractor horsepower based on land size:Small Farms (up to 10 hectares): 15-25 H.P.Medium Farms (10 to 40 hectares): 25-50 H.P.Large Farms (40 hectares and above): 50 H.P. and above.

✅Explanation:One of the key advantages of a 4-stroke engine is its efficiency. In a 4-stroke engine, the fuel is fully consumed during the combustion process. This is due to the dedicated intake, compression, power, and exhaust strokes that ensure optimal burning of the fuel-air mixture.Four-Stroke EngineThe four-stroke engine was first demonstrated by Nicolaus Otto in 1876. It follows the Otto cycle and is also called the ‘Otto cycle engine’. The PV diagram for the Otto cycle represents the changes in volume and pressure that the fuel-air mixture undergoes in a four-stroke engine. These changes create heat, which is used to power the machine or engine. All four strokes (Intake - Compression - Combustion - Exhaust) are essential to the working of a four-stroke engine. A four-stroke engine needs two crankshaft revolutions (720 degrees) to complete a cycle.

✅Explanation:Power Take-Off (PTO) is a method by which power is transferred from a vehicle's engine to auxiliary equipment, such as implements or machinery. The power extracted by PTO is typically expressed as a percentage of the engine's power.

✅Explanation:India is the world's third-largest producer of whiteleg shrimp, producing almost 1 million metric tons each year. Andhra Pradesh is the largest shrimp producer in India, accounting for 70% of the country's shrimp output.

✅Explanation:The period of heat, also known as estrus, in cows typically lasts for about 18 hours on average. During this time, a cow is receptive to mating, and if she is not bred, the heat cycle will occur again after a certain period, usually around 21 days.EstrusHeat (estrus) is simply the period when a cow or heifer is sexually receptive and will stand to be mounted by a bull. During this time, an egg matures and is ready to be released into the reproductive tract. The duration of estrus ranges from 36-72 hours, but the standing heat (when the cow will stand to be mounted) is generally shorter (12-18 hours). This heat period is repeated at approximately 19-23 day intervals.In a natural breeding program, the bull determines when a cow is in heat. In an AI program, the owner identifies the cow in heat. Heat detection is an essential step in the more intensive management system that is part of artificial insemination. It requires both time and attention.Key PointsArtificial Insemination involves the collection of semen from a healthy bull of the desired breed, its storage at a low temperature, and introduction into female cattle of other breeds to bring about fertilization using sterilized equipment.Advantages of A.I. include:Up to 3000 females can be fertilized from the semen collected from one bull.The semen can be stored for a long period and transported over long distances.It has an economical and high success rate of fertilization.

✅Explanation:ESP stands for Exchangeable Sodium Percentage. It is a measure of the amount of sodium (Na+) relative to other cations (like calcium and magnesium) that are attached to the soil's negatively charged clay particles. Saline-alkaline soils, also known as saline-sodic soils, have a high concentration of both soluble salts and exchangeable sodium.

✅Explanation:The floor space requirement for broiler poultry is generally recommended to be around 1 square foot per bird. This allows for adequate space for the broilers to move around, feed, and grow without overcrowding, which can adversely affect their health and well-being.Optimal environmental conditions for rearing broilersTemperature - 22-30^oC (70-85^oF)Relative Humidity - 30-60 %Ammonia level - Less than 25 ppmLitter moisture - 15-25%Air flow - 10-30 metres/minute

✅Explanation:Aseel chickens are known for their rapid growth rate and large size, especially in the early weeks. This is due to their genetic predisposition and muscular build. They are primarily raised for meat and are a popular choice for farmers looking for fast-growing birds.Key pointsAseel is an important native chicken breed of India, known for its martial qualities (aggressive fighting abilities), high stamina, pugnacity, and majestic gait.

✅Explanation:Providing 100-120 sq. ft. ensures the cow has enough room for these activities, especially as the pregnancy progresses and she becomes larger. This size also allows for proper ventilation and hygiene within the housing area.Floor Space RequirementsBullsCovered area: 12.0 m²Open area: 24.0 m²Max animals/pen: 1Shed height: 175 cm in medium and heavy rainfall areas, 220 cm in dry areasCowsCovered area: 3.5 m²Open area: 7.0 m²Max animals/pen: 50BuffaloesCovered area: 4.0 m²Open area: 8.0 m²Max animals/pen: 50Down-CalverCovered area: 12.0 m²Open area: 12.0 m²Max animals/pen: 1Young CalvesCovered area: 1.0 m²Open area: 2.0 m²Max animals/pen: 30Old CalvesCovered area: 2.0 m²Open area: 4.0 m²Max animals/pen: 30Feeding and Watering Space RequirementsAdult Cattle & BuffaloesFeeding space per animal: 60 – 75 cmTotal manger length for 100 animals: 6000 – 7500 cmTotal water tank length for 100 animals: 600 – 750 cmCalvesFeeding space per animal: 40 – 50 cmTotal manger length for 100 animals: 4000 – 5000 cmTotal water tank length for 100 animals: 400 – 500 cm

Key PointsOn May 2 every year, World Tuna Day is celebrated to spread awareness among people about Tuna fish regarding sustainable fishing practices.The day was established by the UN in 2016 by the UN General Assembly to preserve the Tuna fish.Tuna is a significant source of food for humans as the fish has several rich qualities such as Omega 3, Vitamin B12, proteins, and other minerals.

✅Explanation:Potash (potassium) is the most important nutrient for banana production and is required in larger quantities than any other nutrient. It plays a vital role in:Fruit size and qualityOverall growth and yieldDisease resistanceWater regulation

✅Explanation:Bananas thrive in slightly acidic soil. A pH range of 5.5 to 6.5 provides the ideal environment for nutrient availability and uptake. Within this range, essential nutrients like nitrogen, phosphorus, and potassium are most accessible to the banana plant, promoting healthy growth and fruit production.🔴Additional informationBanana (Musa paradisiaca) belongs to family Musaceae.Centre of origin is humid tropical regions of South East Asia.Banana is a tropical plant requires warm and humid climate.Grows well in temperature range of 15 - 35°C.Deep, rich loamy soil with pH 6.5 - 7.5 is most preferred for banana cultivation.

Key PointsLoamy loam soils having a pH between 4.5 to 8.2 are suitable for guava.The scientific name of the crop is Psidium Guajava.It is grown in both tropical and subtropical locations up to 1500 m above the mean sea level.Rainfall required for the guava crop is up to 100cm.

✅Explanation:The optimum pH range for grape plants is generally considered to be between 5.5 and 6.5. This range is slightly acidic to neutral, providing favorable conditions for nutrient absorption by the plant roots. Maintaining the soil pH within this range is crucial for the healthy growth and development of grapevines.🔴Additional informationGrapes (Vitis vinifera) belongs to family Viticeae.The center of origin is Western Asia and Europe.It is cross-pollinated and a deciduous crop.Ideal soil pH is 6.5 - 8.Time for planting:Northern India: February - March.Peninsular: November - January.Karnataka and Tamilnadu: December - January.

✅Explanation:Lopping is a method where all the branches of a tree or plant are cut, typically near the base. This is often done with fodder crops to harvest the entire plant for animal feed.Important PointsTraining: Judicious removal of any part of a plant to divert sap towards its producing areas, leading to an improvement in the quality of yield is called ‘pruning’.It is done during the later stage of plant life when it becomes ready to produce flowers and fruits. Decayed parts can also be pruned off. Types of Pruning:Thinning out: When a shoot or a branch is removed entirely without leaving any stub is called ‘thinning out’.Heading back: When the terminal portion of a branch or a shoot is removed partially, leaving the basal portion intact, it is called ‘heading back’.

✅Explanation:Magnesium is a vital component of chlorophyll, the green pigment in plants that absorbs light energy for photosynthesis. It plays a crucial role in capturing light energy and converting it into chemical energy. Without magnesium, chlorophyll cannot function properly, and photosynthesis would be significantly impaired.Other Options Explanations:Option A: Zinc - Zinc is important for plant growth and development, playing a role in enzyme activity and protein synthesis.Option B: Copper - Copper is a component of some enzymes in plants, particularly those involved in respiration and lignin synthesis.Option C: Nickel - Nickel is needed in very small amounts by plants, primarily for an enzyme involved in nitrogen metabolism.Option D: Aluminum - Aluminum is generally toxic to plants, and while some plants have adapted to tolerate it, it does not play a direct role in photosynthesis.