Agronomy ICAR JRF Test - 3 — Agri Master Mind
First dryland research station was started in 1923 at______
- Manjri
- Bijapur
- Hagari
- Solapur
Wave Erosion is_________
- Combination of water and wind
- Beating action of wave
- Both a & b
- None of above
First famine commission was appointed in
- 1901
- 1911
- 1880
- 1891
Identify the right ones. I. The dry land farming is largely confined to the regions having annual rainfall less than 75cm. II. These regions grow hardy and drought resistant crops
- I only
- II only
- Both
- None
The India Meteorological Department defined drought as an area receives less than ____% of the total normal monsoon.
- 50
- 75
- 60
- 80
Chemical used for seed hardening for drought tolerance in cotton is________
- Potassium dihydrogen phosphate
- Potassium chloride
- Succinic acid
- None of these
The size of the water harvesting pond for one ha area is kept_______
- 100-200m3
- 250-300 m3
- 800-900 m3
- 500-1000 m3
Which of the followings is accumulated in plant body during water stress?
- Fats
- Carbohydrates
- Proline
- None of these
To harvest water for irrigating crops, the ratio of catchment area and cultivated area should approximately equal to_______
- 1:10
- 1:55
- 1:2
- 1:5
Graded bunding is done in________
- Heavy textured soils
- Medium textured soils
- Light textured soils
- None of these
The construction of dug out farm pond is found suitable for the area where land slope is____
- <3%
- 20%
- 10%
- 15%
The spacing of contour line for cultivation varies from________
- 10 to 15m
- 24 to 40m
- 50 to 75 m
- 100 to 150m
The width of buffer strip crops usually varies from_______
- Clay loam soil
- Clay soil
- Sandy clay
- Sandy loan soil
In splash erosion, the raindrop energy acts in the form of_____________
- Kinetic energy
- Chemical energy
- Potential energy
- None of these
Accelerated erosion is caused by________
- a) Water
- b) Wind
- c) Both a and b
- d) None of these
Shelter belts are constructed by
- One row
- More than two rows
- Two rows
- None of these
Broad base terrace is also known as_______
- Bench terrace
- Channel terrace
- Drainage type terrace
- None of these
The area lost in bench terracing depends on________
- Slope
- Depth of till
- Depth of cut
- None of these
Muddy runoff from the field is an indication of_________
- Splash erosion
- Sheet erosion
- Rill erosion
- Gully erosion
Water use efficiency is high for________
- aWheat
- Maize
- Pine apple
- Sorghum
Which of the most popular soil conservation measure is adopted in india?
- Bench terracing
- Graded bunding
- Contour bunding
- Contour strip
Width of furrow in broad bed furrow system---
- 0.45 cm
- 45 cm
- 4.5 cm
- 450 cm
Dust mulch is effective in_______
- Coarse textured soils
- Heavy textured soils
- Both a and b
- None of these
Steep slopes with >40% slope can be stabilized by____
- Contour bunding
- Crib structures
- Graded bunding
- Contour trenching
The formation of deep cracks is a feature of__________
- Alfisols
- Vertisols
- Mollisols
- Entisols
A short duration crop in between two main crops is called as________
- Catch crop
- Contingent crop
- Cover crop
- Trap crop
Concept of minimum tillage was started in-----
- Brazil
- USA
- Canada
- UK
Read the following statements and choose the suitable option Organic matter content increases in zero tilled soils Seed germination is high in the soils with minimum tillage Perennial weed population increases with zero tillage which of the above statements is incorrect?
- Only A
- A & C
- Only B
- A & B
Set line method of planting is commonly followed in----
- Uttar Pradesh
- Gujarat
- Tamil Nadu
- Rajasthan
Which of the following doesn’t come under “After cultivation practice”?
- Intercultivation
- Earthing up
- Beaushening
- Harrowing
The depth of medium deep ploughing according to CRIDA-----
- 5-6 cm
- 5-15 cm
- 25-30 cm
- 15-20 cm
Optimum number of ploughings required for light soils ___
- 3
- 5
- 7
- 6
Optimum range of soil moisture for effective ploughing-----
- 25-50% DASM
- 10-25% DASM
- 50-75% DASM
- 75-90% DASM
The size of soil aggregates most suitable for dry land agriculture----
- 5 cm
- 1-2 cm
- 0.1-0.2 cm
- 7-8 cm
Sod seeding is related to-----
- Finger millet
- Cotton
- Maize
- Rice
Plough used for drainage purpose ____
- MB plough
- Mole plough
- Disc plough
- Chisel plough
Iron plough was invented by-----
- James Small
- JethroTull
- William Amos
- Thomas Jefferson
Puddled soil has ----- higher water use efficiency compared to non-puddled soil
- 5%
- 10%
- 15%
- 2.5%
Minimum tillage decreases----- of soil
- Infiltration rate
- Organic matter content
- Particle density
- Bulk density
Which of the following is correct about puddling of soil?
- Decreases cost of cultivation
- No weed control
- Reduces water loss
- Improves soil structure
The word tillage is derived from ------- language
- Latin
- Anglo-Saxon
- Greek
- Arabic
------crop responds well to deep ploughing
- Finger millet
- Pigeon pea
- Green gram
- Sesame
Critical level of oxygen for better root growth ----
- 1-2%
- 3-5%
- 10-15%
- 5-10%
The right time for incorporation of green manure crop in soil ----
- Seedling stage
- Vegetative stage
- Maturity stage
- Flowering stage
Buck scraper is used mainly for-----
- Puddling
- Levelling of soil
- Weeding
- All of the above
Sweep cultivator is used for -----
- Harvesting of groundnut
- Inter cultivation
- Stubble mulching
- All of the above
Implement only used in upland soil-----
- Conoweeder
- Rotavator
- Rotary weeder
- Star weeder
Chisel plough works up to a depth of-----
- 30-40 cm
- 40-50 cm
- 60-70 cm
- 50-60 cm
Depth of deep ploughing for irrigated conditions in western countries-----
- 50 cm
- 30 cm
- 70 cm
- 90 cm
Which of the following is incorrect about subsoiling?
- Inversion of soil occurs
- More disturbance to the top soil
- Shows long lasting effects
- All of the above
Type of seed bed suitable for small seeded crops------
- Coarse
- Fine
- Moderate
- Both A&B are suitable
Puddling is ............................????????
- Improvement of soil structure
- Maintains soil structure
- Destructs soil structure
- None of the above
Preparatory cultivation doesn’t include------
- Ploughing
- Planking
- Top dressing of fertilizers
- Puddling
One inch of surface soil over one hectare land weighs about----
- 150 t
- 375 t
- 225 t
- 450 t
Deep ploughing is recommended in -----
- Every season
- Once in a year
- Once in 2-3 years
- Once in 5-6 years
Happy seeder is highly suitable for---- cropping system in India
- Miaze-Wheat
- Rice-Wheat
- Rice-Lentil
- Maize-Potato
Which of the following soil characteristics doesn’t increase with the tillage?
- Hydraulic conductivity
- Soil water at saturation (%)
- Random Roughness
- Heat capacity
Read the following statements and choose the suitable option A. More energy is required for tillage in dry soils B. Heavy soils can be ploughed under wide range of moisture conditions C. Crops with tap root system requires greater depth of ploughingWhich of the above statements is correct?
- a) Only B
- b) A & B
- c) A & C
- d) All of them are true
Laser levelling of soil can reduce water loss by----%
- 5-10
- 60-70
- 20-30
- 40-50
Which of the following is a secondary tillage implement?
- Sweep cultivator
- Disc plough
- Turn-wrest plough
- Basin lister
Rotopuddler usually puddles the soil up to depth of-----
- 5 cm
- 15 cm
- 45 cm
- 25 cm
Property of soil by which the clods become more crumby when dry is called as-----
- a) Mellowness
- b) Consistency
- c) Friability
- d) Both A&C
Roots occupy---- % mass of soil
- 10
- 20
- 50
- 30
Blind hoeing is done in-----
- Low land rice
- Upland rice
- Wheat
- Sugarcane
Which of the following is a multipurpose implement?
- Animal drawn MB plough
- Disc plough
- Country plough
- Tractor drawn MB plough
The Author of book “One straw revolution” which is related to conservation agriculture is__
- Howard
- M. Fukuoka
- W.H. Pawley
- J. Tull
Organic matter imparts __ colour to soil
- Black
- White
- Red
- Dark brown
Main reason for introduction of conservation tillage----
- To protect the soil
- Rise in oil prices
- Rise in labour cost
- To reduce weed population
Power of tractor required to operate rotopuddler-----
- 15-20 hp
- 25-30 hp
- 45-50 hp
- 35-40 hp
Central research institute for dry land agriculture was established in-----
- 1955
- 1971
- 1985
- 1957
The operations carried out by happy seeder are-----
- Sowing
- Mulching
- Fertilizer application
- All of the above
Tillage operations share about---- percentage of cost of cultivation
- 30
- 50
- 60
- 75
Depth of deep ploughing according to CRIDA ----
- 15-20 cm
- 40-50 cm
- 60-70 cm
- 25-30 cm
Tractor drawn mould board plough is used for----
- Deep ploughing
- Sowing
- Levelling
- All of the above
Optimum number of ploughings required for heavy soils----
- 3-5
- 6-7
- 1-3
- 7-8
Statement I – Nitrogen in precipitation is about two third in ammonium and one third in nitrate form Statement II – Nitrate in the plants are usually higher in the evening than morning if the supply is short
- Both Statement I and Statement II are true
- Both Statement I and Statement II are false
- Statement I is true and Statement II is false
- Statement I is false and Statement II is true
Statement I –In general the most critical stage of growth for tissue testing is at the time of seedling stage Statement II – Plant tissue test should not be made early in the morning or late in afternoon
- Both Statement I and Statement II are true
- Both Statement I and Statement II are false
- Statement I is true and Statement II is false
- Statement I is false and Statement II is true
Statement I – Response to nutrients may be much greater under cool temp. Statement II – Mineralization of certain nutrients from organic matter is reduced under cool temp.
- Both Statement I and Statement II are true
- Both Statement I and Statement II are false
- Statement I is true and Statement II is false
- Statement I is false and Statement II is true
Statement I – Water soluble Chlorine levels of less than 2 ppm in soil is considered low Statement II – Leaves of tobacco thicken and begin to roll if chlorine in the soil is in lowest quantity.
- Both Statement I and Statement II are true
- Both Statement I and Statement II are false
- Statement I is true and Statement II is false
- Statement I is false and Statement II is true
Statement I –Applications of sodium salts to soil increases runoff from treated catchment Statement II – The ideal location of pond is in the corner of cultivated field.
- Both Statement I and Statement II are true
- Both Statement I and Statement II are false
- Statement I is true and Statement II is false
- Statement I is false and Statement II is true
Statement I –Circular farm ponds has higher water storing capacity than other shapes. Statement II – Dug out farm ponds are a common feature on hill slopes
- Both Statement I and Statement II are true
- Both Statement I and Statement II are false
- Statement I is true and Statement II is false
- Statement I is false and Statement II is true
Statement I – Flooding type nozzles minimize drift hazard Statement II – Flood jet nozzles are useful for sub surface applications herbicides
- Both Statement I and Statement II are true
- Both Statement I and Statement II are false
- Statement I is true and Statement II is false
- Statement I is false and Statement II is true
Statement I – The percentage of moisture in root zone at the permanent wilting of plants is called the Critical Moisture Point Statement II – Higher the clay content of a soil, higher its hygroscopic coefficient.
- Both Statement I and Statement II are true
- Both Statement I and Statement II are false
- Statement I is true and Statement II is false
- Statement I is false and Statement II is true
Statement I – In irrigated agriculture, computations of soil water content are based on PET Statement II – In rainfed agriculture, computations of soil water content are based on actual ET
- Both Statement I and Statement II are true
- Both Statement I and Statement II are false
- Statement I is true and Statement II is false
- Statement I is false and Statement II is true
Statement I – AET and PET are equal when soil moisture and other crop growth factor is not limiting Statement II – PET depends on soil moisture and climate while AET depends on Climate only
- Both Statement I and Statement II are true
- Both Statement I and Statement II are false
- Statement I is true and Statement II is false
- Statement I is false and Statement II is true
Statement I –An IW/CPE ratio of 1.0 means scheduling irrigations with the quantity of water equal to the lost in evaporations Statement II – If IW/CPE ratio is smaller indicates- irrigations at longer interval
- Both Statement I and Statement II are true
- Both Statement I and Statement II are false
- Statement I is true and Statement II is false
- Statement I is false and Statement II is true
End product of denitrification process is
- N2
- NH3
- NO3
- N2O and N2
The immobility of phosphorous in soils is primarily a result of orthophosphates
- Reacting with Ca in acid soils and Fe and Al in neutral and basic soils
- Reacting with K in acid soils and Ca in neutral and basic soils
- Being immobilized in organic matter
- Reacting with Fe and Al in acid soils and Ca in neutral and basic soils
Symbiotic association between Rhizobium and legume was pointed out by
- Hellriegel and Wilfarth
- Bentham
- Winogradsky&Beijerinck
- Brefeld
Most outstanding green manuring crop is
- Sunhemp
- Dhaincha
- Mung
- Pillipasera
Rhizobium was first isolated by Beijerinck and named
- Bacillus radicicola
- Rhizobium leguminoserum
- Bradirhizobiumjaponicum
- Pseudomonas radicicola
Order of ease of mineralization
- Urea > amino acids > proteins > nucleic acids > amino sugar >humified N
- Urea > amino acids > amino sugar > proteins > nucleic acids >humified N
- Urea > amino acids > nucleic acids > amino sugar > proteins >humified
- Urea > amino acids > amino sugar > nucleic acids > proteins >humified N
Formation of ridges and dumping of crop residues into that is
- Minimum tillage
- Zero tillage
- Conservation tillage
- Conventional tillage
Movement of air from soil to atmosphere and vice-versa due to pressure gradient
- Diffusion
- Partial pressure gradient
- Mass flow
- None of these
Puddling is
- Ploughing in moist condition
- Breaking down of soil structure into particles
- Planting of paddy under waterlogged condition
- None of these
The water flowing through a narrow tube follows Poisieullies law and as per this law the water flowing is directly proportional to
- Square of radius
- Forth power of radius
- Eight power of radius
- Sixth power of radius
Number of recognized land capability classes given by soil conservation service of USA is
- V
- VI
- VIII
- X
If EC of drainage water is 8 mhos/cm and EC of irrigation water is 1 mhos/cm, the leaching requirement will be ----
- 10 %
- 8%
- 12.5 %
- 15 %
SMCC (Soil moisture characteristic curve) given by-
- Childs (1940)
- Mayar (1945)
- White (1970)
- Black (1889)
Ratio to the water’s average roundabout path to Straight flow path is –
- Porosity
- Tortuosity
- Permeability
- Diffusivity
SAMARTH was launched by which ministry
- Ministry of Jal sakti
- Ministry of textile
- Ministry of power 2021
- Ministry of agriculture and farmer well fare
SAMARATH full form
- Sustainable agrarian mission on use of agro reused in thermal power plant
- Sustainable agrarian mission on use of agro residue in thermal power plant
- Sustainable agrarian mission on use of agro residue in thermal power plant
- Sustainable agrarian mission on use of agro residue in thermal pollution plant
Fiji virus transmitted by
- Brown plant hopper
- Grass hopper
- White backed plant hopper
- Aphid
Fiji virus disease infected which crop
- Sugarcane
- Wheat
- Rice
- Maize
One nation One fertilizer related to
- PMBJUP
- PMFBY
- PMKSY
- PMJUP
Size of nano urea particle is
- 70-80 nm
- 80-90nm
- 20-50nm
- 100-120nm
Price stabilized scheme was launched in the year
- 2014-15
- 2015-16
- 2011-12
- 2-18-19
PM KISAN scheme was launched in the year
- 2017
- 2018
- 2019
- 2020
In PM KISAN scheme farmer family receive
- 8000 /-per year
- 10000/-per year
- 6000/-per year
- 12000/-per year
Modified interest subvention scheme gives farmer loan upto
- 5 lakh
- 8 lakh
- 3 lakh
- 10 lakh
HB1 is first hybrid developed by using male sterility in
- Wheat
- Rice
- Bajara
- Jowar
Pheromone traps attracts
- Female moths
- Female bugs
- Male moths
- Caterpillers
Trichogramma parasitoid release is recommended for management of
- Gangora thyrsis
- Atherigena soccata
- Chilo partellus
- Holotrichia serrata
Which insecticide used for sucking pest management in seed treatment
- Fenvalerate
- Diazinon
- Imidacloprid
- None of these
Boiling point of water in Kelvin unit is
- 371 K
- 377 K
- 373 K
- 375 K
Operational holding refers to Net
- Land leased by farmer
- Land owned by farmer
- land area cultivated by a farmer
- Cropped area cultivated by a farmer
Farm budget are used to ---
- Compare economic profitability of different production activities within or among farms
- Indicate whether a proposed change will be profitable under a given set of factors
- Explore conditions to make farm profitable
- All of these
NABARD established in 1982 with the recommendation of --- committee
- Narshihaman
- Gadgeel
- Shivraman
- Mehta
Nematodes are
- Blue green algae
- Insects
- Plant pathogens
- Symbiotic nitrogen fix
Anhydrous ammonium contain ---- % N
- 25%
- 46%
- 82%
- 35%