ICAR PG Agronomy Previous Year Paper 2023 Session 2 — Agri Master Mind

Q1. Critical limit of HCN in sorghum (dry wt. basis) is: (ICAR-PG-AGRO-2023-S2)
  • 200 ppm
  • 400 ppm
  • 100 ppm
  • 500 ppm
Q2. Most abundant gas in our atmosphere that plants cannot utilize directly in its atmospheric form and is captured by certain bacteria that live symbiotically in the nodules of roots. (ICAR-PG-AGRO-2023-S2)
  • Oxygen
  • Nitrogen
  • Neon
  • Hydrogen
Q4. The most abundant minerals and mineral groups in sand and silt of soils throughout the world is: (ICAR-PG-AGRO-2023-S2)
  • Feldspars
  • Olivine
  • Quartz
  • Pyroxenes and Amphiboles
Q5. Read the following statements about drip irrigation: (A) Brackish water can be used for non-sensitive crops. (B) Brackish water cannot be used. (C) Salts accumulate at wetted circle periphery. (D) Leaching not required. (E) Efficiency is 80-85%. (ICAR-PG-AGRO-2023-S2)
  • B and D only
  • C, D and E only
  • A and C only
  • A, C and E only
Q6. Which of the following is not a correct pairing of a macronutrient and its major function in growth and developments of plants? (ICAR-PG-AGRO-2023-S2)
  • Potassium-enzyme activation, water balance, ion balance
  • Calcium-activity of membranes and cytoskeleton, second messenger
  • Sulfur-in proteins and coenzymes
  • Iron-in active sites of many redox enzymes and electron carriers
Q7. The physical process of soil degradation: (ICAR-PG-AGRO-2023-S2)
  • Fertility imbalance
  • Organic matter decline
  • Erosion and depletion
  • Acidification
Q9. Rotenone is a: (ICAR-PG-AGRO-2023-S2)
  • Insect hormone
  • Natural insecticide
  • Bioherbicide
  • Natural herbicide
Q10. Assertion (A): The temperature increases in the troposphere from ground to tropopause. Reason (R): Ozone absorbs ultraviolet radiation in the stratosphere and makes it warm. (ICAR-PG-AGRO-2023-S2)
  • Both (A) and (R) are true and (R) is the correct explanation
  • Both (A) and (R) are true but (R) is NOT the correct explanation
  • (A)                        is true but (R) is false
  • (A)                        is false but (R) is true
Q11. Given below are two statements: Statement (I): Tilth indicates two properties of soil viz. the size distribution of aggregates and mellowness or friability of soil. Statement (II): A higher per cent of larger aggregates (> 5 mm in diameter) is necessary for irrigated agriculture. (ICAR-PG-AGRO-2023-S2)
  • Both Statement (I) and Statement (II) are correct.
  • Both Statement (I) and Statement (II) are incorrect.
  • Statement (I) is correct but Statement (II) is incorrect.
  • Statement (I) is incorrect but Statement (II) is correct.
Q12. Which of the following does not apply to SRI method of paddy cultivation? (ICAR-PG-AGRO-2023-S2)
  • Reduced water application
  • Reduced plant density
  • Increased application of chemical fertilizers
  • Reduced age of seedling transplanting
Q14. What is the minimum cardinal temperature (°C) of maize and wheat? (ICAR-PG-AGRO-2023-S2)
  • 5-7 and 1.0-2.5
  • 10-12 and 5.0-5.5
  • 8-10 and 3.0-4.5
  • 12-15 and 5.0-5.5
Q15. Time-series model, cross-section model and panel model are three main statistical methods of: (ICAR-PG-AGRO-2023-S2)
  • Stochastic model
  • Mechanistic model
  • Deterministic model
  • Empirical model
Q16. At what height, remote sensing satellites are placed above the earth surface? (ICAR-PG-AGRO-2023-S2)
  • 800 km
  • 1000 km
  • 18000 km
  • 36000 km
Q17. The amount of Analytical Reagent grade potassium dichromate required for preparation of 1000 mL of potassium dichromate solution (0.1 N ). (Atomic weights: K=39, Cr=52, O=16). (ICAR-PG-AGRO-2023-S2)
  • 4.9 g
  • 29.4 g
  • 294 g
  • 49.0 g
Q18. Osmotic expansion of a cell kept in water is chiefly regulated by an organelle: (ICAR-PG-AGRO-2023-S2)
  • Mitochondria
  • Vacuoles
  • Plastids
  • Ribosomes
Q19. Optimum seed rate for a good crop stand of Isabgol is: (ICAR-PG-AGRO-2023-S2)
  • 1.0 kg/ha
  • 2.0 kg/ha
  • 4.0 kg/ha
  • 10 kg/ha
Q20. An enzyme that joins the ends of two strands of nucleic acid is: (ICAR-PG-AGRO-2023-S2)
  • Polymerase
  • Ligase
  • Synthetase
  • Helicase
Q22. For irrigation in one ha wheat field, the level of CPE is fixed at 80 mm, compute the amount of irrigation water if desired IW/CPE ratio is 0.8. (ICAR-PG-AGRO-2023-S2)
  • 3.2 cm
  • 6.4 cm
  • 8.8 cm
  • 10 cm
Q23. The fertilizer having least equivalent acidity is: (ICAR-PG-AGRO-2023-S2)
  • Urea
  • Ammonium nitrate
  • Ammonium chloride
  • Calcium ammonium nitrate
Q24. Assertion (A): C4 plants usually do not reach radiation saturation in direct sunlight. Reason (R): C4 plants use high radiation levels more efficiently at low levels than under full sunlight. (ICAR-PG-AGRO-2023-S2)
  • Both (A) and (R) are true and (R) is the correct explanation of (A).
  • Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
  • (A)                        is true but (R) is false.
  • (A)                        is false but (R) is true.
Q26. Given below are two statements: Statement (I): Chicorium intybus is an objectionable weed species in Egyptian clover. Statement (II): Egyptian clover are more vulnerable to have admixture with chicory seeds. (ICAR-PG-AGRO-2023-S2)
  • Statement (I) is correct and (II) is the right explanation.
  • Statement (I) is correct but (II) is not the right explanation.
  • Only Statement (I) is correct.
  • Statement (I) is incorrect and Statement (II) is correct.
Q28. Argemone mexicana is an objectionable weed of: (ICAR-PG-AGRO-2023-S2)
  • Linseed
  • Mustard
  • Lucerne
  • Sesamum
Q29. Assertion (A): A remote sensing system that possesses only a sensor and depends on an external source… is called an active remote sensing system. Reason (R): SAR uses microwave band to estimate soil moisture. (ICAR-PG-AGRO-2023-S2)
  • Both (A) and (R) are true and (R) is the correct explanation of (A).
  • Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
  • (A)                        is true but (R) is false.
  • (A)                        is false but (R) is true.
Q30. Which of the following groups of herbicides, oxyfluorfen belongs to? (ICAR-PG-AGRO-2023-S2)
  • Diphenyl ethers
  • Nitriles
  • Bipyridilliums
  • Oximes
Q31. Rhizobium japonicum fixes N in symbiotic relationship with: (ICAR-PG-AGRO-2023-S2)
  • Pea group
  • Lupin group
  • Soybean group
  • Phaseolus group
Q32. Given below are two statements: Statement (I): The greater is the concentration of water in a system, lower is its kinetic energy or water potential. Statement (II): Pure water will have the lowest water potential. (ICAR-PG-AGRO-2023-S2)
  • Both Statement (I) and Statement (II) are correct.
  • Both Statement (I) and Statement (II) are incorrect.
  • Statement (I) is correct but Statement (II) is incorrect.
  • Statement (I) is incorrect but Statement (II) is correct.
Q33. Which one of the following is a wrong statement? (ICAR-PG-AGRO-2023-S2)
  • Greenhouse effect is a natural phenomenon.
  • Ozone in upper part of atmosphere is harmful to animals.
  • Eutrophication is a natural phenomenon in freshwater bodies.
  • Most of the forest have been lost in tropical areas.
Q35. Assertion (A): NBPT (N-(n-butyl) thiophosphoric triamide) (commercial name Agrotain®). Reason (R): It competes for active sites on the urease enzyme and ties up activity for about 25 days. (ICAR-PG-AGRO-2023-S2)
  • Both (A) and (R) are true and (R) is the correct explanation of (A).
  • Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
  • (A)                        is true but (R) is false.
  • (A)                        is false but (R) is true.
Q37. A  maize crop field was supplied with 60 mm depth of irrigation, find out how many liters of water has gone into the field. (ICAR-PG-AGRO-2023-S2)
  • 3 lakh
  • 6 lakh
  • 8 lakh
  • 12 lakh
Q38. A mustard crop is irrigated in 30 hours, with a discharge rate of 200 litres per minute, workout the average depth of irrigation (Assume area is 1 ha). (ICAR-PG-AGRO-2023-S2)
  • 90 mm
  • 66.6 mm
  • 60 mm
  • 36 mm
Q39. The mineral containing boron (B) is: (ICAR-PG-AGRO-2023-S2)
  • Tourmaline
  • Topaz
  • Epidote
  • Francolites
Q40. Global warming potential of  (Sulfur hexafluoride) is: (ICAR-PG-AGRO-2023-S2)
  • 23,500
  • 22,500
  • 20,500
  • 15,500
Q42. For how many days in advance, weather forecasts are currently issued by IMD in Gramin Krishi Mausam Sewa (GKMS) Project? (ICAR-PG-AGRO-2023-S2)
  • 3 days
  • 5 days
  • 10 days
  • 21 days
Q43. The long duration pulse crop is: (ICAR-PG-AGRO-2023-S2)
  • Green gram
  • Black gram
  • Cowpea
  • Pigeonpea
Q44. Seed rate of fodder oats is: (ICAR-PG-AGRO-2023-S2)
  • 20 kg/ha
  • 50 kg/ha
  • 100 kg/ha
  • 200 kg/ha
Q45. For applying 100 kg N/ha, how much urea would be required? (ICAR-PG-AGRO-2023-S2)
  • 46 kg
  • 117 kg
  • 217 kg
  • 317 kg
Q46. The first case of confirmed herbicide resistance in weed was reported by: (ICAR-PG-AGRO-2023-S2)
  • C.F. Ryan
  • Cive James
  • I. Heap
  • S.O. Duke
Q47. The major mechanism of reducing heat from the crop canopy is: (ICAR-PG-AGRO-2023-S2)
  • Advective heat losses
  • Evaporation
  • Transpiration
  • Heat absorption by soil
Q49. The sulphur content (%) in the following fertilizers are: (A) SSP (9-12%), (B) Ammonium sulphate (16%), (C) Potassium sulphate (18%), (D) Ammonium phosphate sulphate (15%). (ICAR-PG-AGRO-2023-S2)
  • (A), (B) and (D) only
  • (A), (B) and (C) only
  • (A), (C) and (D) only
  • (B), (C) and (D) only
Q50. Read the following statements about silicon: (A) Beneficial for rice/sugarcane. (B) Rigidity of cell wall. (C) Zinc availability. (D) 60% of mineral matter. (ICAR-PG-AGRO-2023-S2)
  • (A), (B) and (C) only
  • (A), (B) and (D) only
  • (A), (B), (C) and (D)
  • (B), (C) and (D) only
Q51. Which crop among the following is relatively most tolerant to salinity: (ICAR-PG-AGRO-2023-S2)
  • Green gram
  • Rice
  • Maize
  • Barley
Q52. Berseem crop is the native of: (ICAR-PG-AGRO-2023-S2)
  • India
  • Bhutan
  • Egypt
  • Mexico
Q53. The theoretical range of NDVI is: (ICAR-PG-AGRO-2023-S2)
  • 0 to 1
  • -1 to +1
  • -1 to 0
  • 0 to 100
Q54. Assertion (A): At sea-level… a tensiometer can be used to indicate soil suction values upto 1 bar. Reason (R): Beyond this value… the water column in the tensiometer would break into vapour. (ICAR-PG-AGRO-2023-S2)
  • Both (A) and (R) are true and (R) is the correct explanation.
  • Both (A) and (R) are true but (R) is NOT the correct explanation.
  • (A)                        is true but (R) is false.
  • (A)                        is false but (R) is true.
Q55. Given below are two statements: Statement (I): Increasing fertilizer rates to maintain yields in weedy fields can be a waste of resources. Statement (II): Increasing fertilizer rates to give competitive advantage on already weeded plots may sustain the effect of weeding. (ICAR-PG-AGRO-2023-S2)
  • Both Statement (I) and Statement (II) are correct.
  • Both Statement (I) and Statement (II) are incorrect.
  • Statement (I) is correct but Statement (II) is incorrect.
  • Statement (I) is incorrect but Statement (II) is correct.
Q56. Red sandy clay loam soils (Chalka soil) are found in the state of: (ICAR-PG-AGRO-2023-S2)
  • Andhra Pradesh
  • Tamil Nadu
  • Karnataka
  • Kerala
Q57. Brays No. 1 reagent consists of mixture of: (ICAR-PG-AGRO-2023-S2)
  • 0.03 N N HCl
  • 0.3 N N HCl
  • 0.03 N N HCl
  • 0.3 N N HCl
Q58. Available water for plant indicates water held between: (ICAR-PG-AGRO-2023-S2)
  • 0.33 bar to 15.0 bar
  • 0.1 bar to 0.33 bar
  • Above 15.0 bar
  • Below 0.1 bar only
Q59. At ultimate wilting point, soil water potential is: (ICAR-PG-AGRO-2023-S2)
  • -15 bars
  • -20 bars
  • -30 bars
  • -60 bars
Q60. Given below are two statements: Statement (I): The principles of conservation agriculture are minimum soil disturbance, permanent soil cover and mixing and rotating crops. Statement (II): The three factors important for the success of CA are timely operations, precise operations and efficient use of inputs. (ICAR-PG-AGRO-2023-S2)
  • Both Statement (I) and Statement (II) are correct.
  • Both Statement (I) and Statement (II) are incorrect.
  • Statement (I) is correct but Statement (II) is incorrect.
  • Statement (I) is incorrect but Statement (II) is correct.
Q61. Cotton fibre is made up of: (ICAR-PG-AGRO-2023-S2)
  • Crude fibre
  • Starch
  • Cellulose
  • Lignin
Q62. Given below are two statements: Statement (I): In CAM plants the stomata open at day time and a large amount of carbon dioxide is fixed as malic acid which is stored in vacuoles. Statement (II): In CAM plants, during night time as the stomata are closed, there is no possibility of carbon di oxide entry. (ICAR-PG-AGRO-2023-S2)
  • Both Statement (I) and Statement (II) are true.
  • Both Statement (I) and Statement (II) are false.
  • Statement (I) is true but Statement (II) is false.
  • Statement (I) is false but Statement (II) is true.
Q63. Most common salt in saline water is: (ICAR-PG-AGRO-2023-S2)
  • Magnesium chloride
  • Sodium chloride
  • Calcium sulphate
  • Sodium sulphate
Q64. Herbicidal control for Lantana camara: (ICAR-PG-AGRO-2023-S2)
  • Pendimethalin
  • Glyphosate
  • Atrazine
  • Metolachlor
Q65. Sugarcane seed sets essentially have ___ buds: (ICAR-PG-AGRO-2023-S2)
  • 1
  • 2
  • 3
  • 4
Q66. Popular oilseed crops that can be grown as intercrop in cotton: (ICAR-PG-AGRO-2023-S2)
  • Groundnut and mustard
  • Soyabean and safflower
  • Groundnut and safflower
  • Soyabean and groundnut
Q67. Filter cake is a byproduct of: (ICAR-PG-AGRO-2023-S2)
  • Textile Industry
  • Sugar Industry
  • Paper Industry
  • Dye Industry
Q68. Weight of a soil sample with can is 220 g and dry weight with can is 190 g. Weight of empty moisture can is 45 g. Calculate moisture content of soil sample. (ICAR-PG-AGRO-2023-S2)
  • 18.7%
  • 20.7%
  • 25.7%
  • 27.3%
Q69. Water measuring device used for determining discharge from a piped irrigation system is usually: (ICAR-PG-AGRO-2023-S2)
  • Weir
  • V-notch
  • Flow meter
  • Flume
Q70. What will be the WUE (), if wheat crop used 40 cm of water during whole period and yielded  of grains? (ICAR-PG-AGRO-2023-S2)
  • 10
  • 100
  • 40
  • 0.1
Q71. First remote sensing satellite in India is: (ICAR-PG-AGRO-2023-S2)
  • IRS-1A
  • IRS-1B
  • ERST-1
  • LANDSAT-1
Q72. Assertion (A): In the initial phase of flooding (phase 1), there is decrease in hydraulic conductivity. Reason (R): In the initial phase of submergence, the rate of reduction of hydraulic conductivity due to microbial sealing exceeds the rate of increase of hydraulic conductivity caused by the removal of entrapped air. (ICAR-PG-AGRO-2023-S2)
  • Both (A) and (R) are true and (R) is the correct explanation of (A).
  • Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
  • (A)                        is true but (R) is false.
  • (A)                        is false but (R) is true.
Q73. Main dispersal agent of Dandelion is: (ICAR-PG-AGRO-2023-S2)
  • Wind
  • Water
  • Birds
  • Humans
Q74. The golgi complex plays a major role: (ICAR-PG-AGRO-2023-S2)
  • In digesting proteins and carbohydrates
  • As energy transferring organelles
  • In post translational modification of proteins and glycosidation of lipids
  • In trapping the light and transforming it into chemical energy
Q75. In which of the Indian States, shifting cultivation is practiced? (ICAR-PG-AGRO-2023-S2)
  • Odisha
  • Karnataka
  • Rajasthan
  • 1 and 2 above
Q76. Given below are two statements: Statement (I): In strongly acidic soils,  form dominates, while in alkaline soils, P is largely present as  form. Statement (II): Plant takes both the form of  and  in equal amounts for their growth and development. (ICAR-PG-AGRO-2023-S2)
  • Both Statement (I) and Statement (II) are correct.
  • Both Statement (I) and Statement (II) are incorrect.
  • Statement (I) is correct but Statement (II) is incorrect.
  • Statement (I) is incorrect but Statement (II) is correct.
Q77. Read the following statements carefully regarding chemicals: (A) 2-Chloro-6-trichloromethyl pyridine (B) 2 Amino-4-chloro-6-methyl pyrimidine (C) Phenyl phosphoro diamidate (D) Dicyandiamide. (ICAR-PG-AGRO-2023-S2)
  • (A), (B) and (C) only
  • (A), (B) and (D) only
  • (A), (B), (C) and (D)
  • (B), (C) and (D) only
Q78. Assertion (A): Water and mineral uptake by root hairs occurs through apoplast until it reaches endodermis. Reason (R): Casparian strips in endodermis are suberized. (ICAR-PG-AGRO-2023-S2)
  • Both Assertion & Reason are true and the Reason is the correct explanation.
  • Both Assertion & Reason are true but the Reason is not the correct explanation.
  • Assertion is true statement but Reason is false.
  • Both Assertion and Reason are false statements.
Q80. Over the last 150 years, 2003 was the hottest year with the average temperature being ___ °C higher than normal. (ICAR-PG-AGRO-2023-S2)
  • 0.45
  • 0.55
  • 0.65
  • 0.75
Q81. Arrange herbicides in ascending order with respect to their first synthesis: (A) Paraquat, (B) Pretilachlor, (C) Pendimethalin, (D) Simazine, (E) Sulfosulfuron. (ICAR-PG-AGRO-2023-S2)
  • (D), (A), (C), (B), (E)
  • (B), (D), (E), (A), (C)
  • (D), (B), (E), (C), (A)
  • (E), (A), (D), (B), (C)
Q82. The Father of Soil Science and Agricultural Chemistry in India is: (ICAR-PG-AGRO-2023-S2)
  • Collings
  • Stewart
  • J.B. Lawes
  • J.W. Leather
Q83. If a soil has 10% less moisture than its field capacity, what will be depth of irrigation required to bring soil moisture level to field capacity for a soil having depth 0.4 m and bulk density ? (ICAR-PG-AGRO-2023-S2)
  • 4.2 cm
  • 4.8 cm
  • 5.6 cm
  • 8.8 cm
Q84. In 1843, an agricultural experiment station was established at Rothamsted, England by: (ICAR-PG-AGRO-2023-S2)
  • J.B. Lawes and J.H. Gilbert
  • J.B. Boussingault
  • Justus von Liebig
  • Mitscherlich
Q85. Given below are two statements: Statement (I): An herbicide label is a legal contract between manufacturer, user and regulatory body. Statement (II): Flowable formulation is an example of liquid formulation. (ICAR-PG-AGRO-2023-S2)
  • Both Statement (I) and Statement (II) are correct.
  • Both Statement (I) and Statement (II) are incorrect.
  • Statement (I) is correct but Statement (II) is incorrect.
  • Statement (I) is incorrect but Statement (II) is correct.
Q86. Inhibitors of photosynthesis at photosystem II: (ICAR-PG-AGRO-2023-S2)
  • Thiocarbamates
  • Ureas
  • Glycines
  • Benzoic acids
Q87. Assertion (A): A Global Positioning System (GPS) links spatial data with descriptive information about a particular feature on a map. Reason (R): The information is stored as attributes of the geographically represented features. (ICAR-PG-AGRO-2023-S2)
  • Both (A) and (R) are true and (R) is the correct explanation.
  • Both (A) and (R) are true but (R) is NOT the correct explanation.
  • (A)                        is true but (R) is false.
  • (A)                        is false but (R) is true.
Q88. According to IMD, a day is called as rainy day if the minimum amount of rainfall during a period of 24 hours is: (ICAR-PG-AGRO-2023-S2)
  • 2.5 cm
  • 5.0 cm
  • 0.25 cm
  • 0.75 cm
Q89. Given below are two statements: Statement (I): Mycorrhiza soil fungi, solubilizes potassium (K) in soil and makes available to plants. Statement (II): The mycorrhizae that live inside roots are Phoma and Rizoctonia. (ICAR-PG-AGRO-2023-S2)
  • Both Statement (I) and Statement (II) are true.
  • Both Statement (1) and Statement (II) are false.
  • Statement (I) is true but Statement (II) is false.
  • Statement (I) is false but Statement (II) is true.
Q90. Read the following statements about economization of irrigation water in rice: (A) Physical characteristics of infiltrating water have no effect. (B) Depth of wetting increases infiltration rate. (C) Viscosity increases infiltration rate hyperbolically. (D) Pore sizes increase infiltration rate parabolically. (ICAR-PG-AGRO-2023-S2)
  • A and B only
  • D only
  • B only
  • C and D only
Q91. The first country which adopted an agroforestry policy: (ICAR-PG-AGRO-2023-S2)
  • Nigeria
  • India
  • Sri Lanka
  • Brazil
Q92. Nitrogenase: (ICAR-PG-AGRO-2023-S2)
  • Is insensitive to oxygen
  • Contains magnesium
  • Releases two molecules as products
  • Requires an aerobic environment
Q93. The flagship scheme “Swachh Bharat Mission” was launched by Government of India in: (ICAR-PG-AGRO-2023-S2)
  • 1986
  • 1998
  • 2008
  • 2014
Q94. Dehydrogenase activity is a good index of biological activity of soil because it plays a role in: (ICAR-PG-AGRO-2023-S2)
  • Carbon metabolism
  • Respiration
  • Synthesis of cell macro-molecules
  • Cell division
Q95. The instrument used for measuring photosynthetically active radiation (PAR) is: (ICAR-PG-AGRO-2023-S2)
  • Campbell stroke sun shine recorder
  • Pyranometer
  • Line quantum sensor
  • Pyrheliometer
Q97.  is an inorganic activator for enzymes: (ICAR-PG-AGRO-2023-S2)
  • Carbonic anhydrase
  • Phosphatase
  • Chymotrypsin
  • Maltase
Q98. When farmers… concerned that pre-mature yellowing of leaves… might cause decrease in yield. Which treatment could be most beneficial? (ICAR-PG-AGRO-2023-S2)
  • Application of Fe and Mg
  • Frequent irrigation
  • Treatment with cytokinins along with a small dose of nitrogen
  • Removal of yellow leaves and spraying 2,4,5-T
Q99. Assertion (A): The water budget in the field is accounting the inputs and outputs… Reason (R): The main governing factor in field water budget is the stored soil moisture. (ICAR-PG-AGRO-2023-S2)
  • Both (A) and (R) are true and (R) is the correct explanation.
  • Both (A) and (R) are true but (R) is NOT the correct explanation.
  • (A)                        is true but (R) is false.
  • (A)                        is false but (R) is true.
Q100. Assertion (A): Mie scattering depends on the size of the scatterers in relation to the wavelength of radiation being scattered. Reason (R): Approximate particle size of Mie scatterer is 0.1 to 10 . (ICAR-PG-AGRO-2023-S2)
  • Both (A) and (R) are true and (R) is the correct explanation.
  • Both (A) and (R) are true but (R) is NOT the correct explanation.
  • (A)                        is true but (R) is false.
  • (A)                        is false but (R) is true.
Q101. The matric potential of the soil is the result of: (ICAR-PG-AGRO-2023-S2)
  • Osmotic action
  • Attraction due to ions
  • Adsorption due to soil solids
  • Attraction due to gravity of earth
Q102. The disease ‘Ear cockle of wheat’ is caused by: (ICAR-PG-AGRO-2023-S2)
  • Fungi
  • Bacteria
  • Virus
  • Nematodes
Q103. The specificity between legume host and Rhizobium spp. is governed by: (ICAR-PG-AGRO-2023-S2)
  • Flavonoids
  • Tryptophan
  • Polysaccharides
  • Indole acetic acid
Q104. Rhenania phosphate - a P containing fertilizer contains: (ICAR-PG-AGRO-2023-S2)
  • 26-27%
  • 28-30%
  • 31-33%
  • 34-36%
Q106. According to the USDA classification, the size of fine sand fraction is: (ICAR-PG-AGRO-2023-S2)
  • 0.5 mm
  • 0.25 mm
  • 0.1 mm
  • 0.05 mm
Q107. What is the date of vernal equinox in the northern hemisphere? (ICAR-PG-AGRO-2023-S2)
  • 22nd December
  • 21st March
  • 21st June
  • 23rd September
Q108. Which of the following vitamins serves as a hormone precursor? (ICAR-PG-AGRO-2023-S2)
  • Vitamin A
  • Vitamin C
  • Vitamin D
  • Vitamin K
Q109. Accumulation of soluble salts in soil is called as: (ICAR-PG-AGRO-2023-S2)
  • Humification
  • Salinization
  • Laterization
  • Gleization
Q110. Given below are two statements: Statement (I): A foot operated sprayer is basically used for orchard and tree spraying. Statement (II): Hydraulic pressure of  can be achieved which is necessary to project the jet to tall trees. (ICAR-PG-AGRO-2023-S2)
  • Both Statement (I) and Statement (II) are true.
  • Both Statement (I) and Statement (II) are false.
  • Statement (I) is true but Statement (II) is false.
  • Statement (I) is false but Statement (II) is true.
Q111. Stem nodulating green manure crop is: (ICAR-PG-AGRO-2023-S2)
  • Sunhemp
  • Sesbania aculeata
  • Sesbania rostrata
  • Tephrosia spp.
Q112. Given below are two statements: Statement (I): In Gridiron drainage system, laterals are provided on both sides of mains. Statement (II): The Gridiron drainage system is adopted when the land is practically level or where the land slopes away from the sub-mains on one side and when the entire area has to be drained. (ICAR-PG-AGRO-2023-S2)
  • Both Statement (I) and Statement (II) are correct.
  • Both Statement (I) and Statement (II) are incorrect.
  • Statement (I) is correct but Statement (II) is incorrect.
  • Statement (I) is incorrect but Statement (II) is correct.
Q113. Tembotrione is registered for use in: (ICAR-PG-AGRO-2023-S2)
  • Soybean
  • Maize
  • Barley
  • Lentil
Q114. Cotton belongs to the family: (ICAR-PG-AGRO-2023-S2)
  • Cruciferae
  • Anacardiaceae
  • Malvaceae
  • Solanaceae
Q115. Most bioaccumulator of cadmium (Cd) and lead (Pb) is: (ICAR-PG-AGRO-2023-S2)
  • Sugar beet
  • Mustard
  • Spinach
  • Cabbage
Q116. Given below are two statements: Statement (I): The greenhouse effect is retention of heat in the lower atmosphere due to absorption and re-radiation by clouds and certain gases. Statement (II): Long-wave thermal solar radiation received from the sun passes through the atmosphere with little or no interference and warms the earth’s surface. (ICAR-PG-AGRO-2023-S2)
  • Both Statement (I) and Statement (II) are correct.
  • Both Statement (I) and Statement (II) are incorrect.
  • Statement (I) is correct but Statement (II) is incorrect.
  • Statement (I) is incorrect but Statement (II) is correct.
Q117. Given below are two statements: Statement (I): The direction of movement of water and nutrients in xylem and phloem is unidirectional. Statement II: Sucrose is transported from the source to the sink via phloem. (ICAR-PG-AGRO-2023-S2)
  • Both Statement (I) and Statement (II) are true.
  • Both Statement (I) and Statement (II) are false.
  • Statement (I) is true but Statement (II) is false.
  • Statement (I) is false but Statement (II) is true.
Q118. The most suitable group of crops for dryland agriculture is: (ICAR-PG-AGRO-2023-S2)
  • Rapeseed-mustard, chickpea
  • Berseem, potato
  • Sunflower, potato
  • Sugarcane, peas
Q119. The HD-2967 is the prominent variety of: (ICAR-PG-AGRO-2023-S2)
  • Wheat
  • Chickpea
  • Barley
  • Potato
Q120. Given below are two statements: Statement (I): On steeper sloping land, contour furrows can be used up to a maximum land slope of 5%. Statement II: In furrow irrigation, a minimum slope of 0.01% is recommended to assist drainage. (ICAR-PG-AGRO-2023-S2)
  • Both Statement (I) and Statement (II) are correct.
  • Both Statement (I) and Statement (II) are incorrect.
  • Statement (I) is correct but Statement (II) is incorrect.
  • Statement (I) is incorrect but Statement (II) is correct.