Plant food manufactured by the process of photosynthesis in the presence of a nutrient in chlorophyll is
A. Ca
B. Mg
C. Iron
D. Boron
Answer: Option B
A. Ca
B. Mg
C. Iron
D. Boron
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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