Black cotton soil contains
A. High clay with high Organic matter
B. High clay with low Organic matter
C. Low clay with high Organic matter
D. Low clay with low Organic matter
Answer: Option B
A. High clay with high Organic matter
B. High clay with low Organic matter
C. Low clay with high Organic matter
D. Low clay with low Organic matter
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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