In India, the total area covered under the cultivation of food grain crops is
A. Less than 100 million hectares
B. Between 100 and 150 million hectares
C. Between 150 and 200 million hectares
D. More than 200 million hectares
Answer: Option B
A. Less than 100 million hectares
B. Between 100 and 150 million hectares
C. Between 150 and 200 million hectares
D. More than 200 million hectares
Answer: Option B
Downy Mildew of Bajra caused by
A. C. fusiformis
B. S. graminicola (Sclerospora)
C. T. penicillica
D. All of the above
The criteria of essentiality of nutrients in plants was given by
A. D. J. Nicholas
B. Arnon and Stout
C. J. S. Kanwar
D. M. S. Swaminathan
A. Manganese
B. Boron
C. Zinc
D. Iron
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