The major organic cementing agent in soil aggregate formation is
A. Fats
B. Proteins and protein derivatives
C. Polysaccharides
D. Organic acids
Answer: Option C
A. Fats
B. Proteins and protein derivatives
C. Polysaccharides
D. Organic acids
Answer: Option C
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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