Nitrogen is applied in splits to
A. Increase its efficiencly
B. Help the dealer
C. Reduce credit needs
D. All of these
Answer: Option A
A. Increase its efficiencly
B. Help the dealer
C. Reduce credit needs
D. All of these
Answer: Option A
Sources of negative charges on silicate clays is/are
A. Exposed crystal edges
B. Isomorphus substitution
C. Anion exchange
D. All of these
The most conspicuous chemical change that take place when soil is flooded is reduction of
A. Fe
B. P
C. S
D. None of these
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