Serious insect pest of arhar is
A. Plume moth
B. Mod borer
C. Leaf hopper
D. All of these
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Which one is not realistic?
A. RGR = 5 g/g/day
B. CGR = 5 g/m2 /day
C. LAI = 5
D. LAR = 5 cm2 /g
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Heat transfer in soil mainly occurs through
A. Conduction
B. Radiation
C. Convection
D. None of these
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High temperature of > 41°C at flowering of castor results in
A. Rotting of pollens and poor fertilization
B. Blasting of flower and poor seed-set
C. Delayed pollination and poor-fertilization
D. Reduced pollination and rotting of seed
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Sulfur content in SSP (Single Super Phosphate) is
A. 12%
B. 8%
C. 21%
D. None of the above
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IRGA stands for
A. Integrated Radio Giger Aparatus
B. Isotope Releasing Gas Adsorption
C. Infra-Red Gas Analyser
D. Indol Reaction gravity analyser
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Contribution of flag leaf in photosynthates is about
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Optimum plant population ha-1 for cotton has estimated as
A. 25,000 - 50,000
B. 30,000 - 60,000
C. 50,000 - 80,000
D. 80,000 - 1,00,000
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The most important potential contaminant of food produced on sewage sludge amended soil is
A. Chromium
B. Iron
C. Zinc
D. Cadmium
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The optimum cardinal temperature points for germination of rice seeds are
A. 18°C - 20°C
B. 28°C - 30°C
C. 20°C - 25°C
D. 35°C - 40°C
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Grassy stunt virus desease of rice is transmitted by
A. Green leaf hopper
B. Brown plant hopper
C. White fly
D. Gundhi bug
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Concentration of which element is highest in soil
A. O2
B. Fe
C. Al
D. None of these
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The maximum area under hybrid rice in the world, is found in which country?
A. Indonesia
B. China
C. India
D. Pakistan
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Which one is not allowed in Organic Farming in India?
A. Using Green leaf manuring crops
B. Using Rock Phosphate as P source
C. Using GMO crops
D. Using Bio inoculants
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Carthamus tinctorius is a botanical name of
A. Linseed
B. Safflower
C. Sunflower
D. Rai
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Hygroscopic water is retained in soil at
A. 15 bar
B. 1000 bar
C. 31 bar
D. 0.3 bar
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Which one of the following terms is used to denote the relative land area under sole crop required to produce the same yield as obtained under a mixed or an intercropping system at the same management?
A. Land equivalent ratio
B. Land utilisation index
C. Cropping intensity
D. Relay cropping
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Germinating legume seed contains
A. Oxalic acid
B. Ascorbic acid
C. Phosphoric acid
D. Psidic acid
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Oxygen evolving complex of PSII (Photosystem II) contains
A. Calcium
B. Manganese
C. Chlorine
D. All of the above
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The total number of isotopes of elemental hydrogen is
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