Indian soils are deficient in
A. Zn
B. Cu
C. Fe
D. Mo
Answer: Option A
Solution(By Examveda Team)
At present 49% of Indian soils are potentially deficient in diethylene-triamine pentaacetate (DTPA) extractable Zinc.Zinc is one of the eight essential micronutrients. It is needed by plants in small amounts, yet crucial to plant development. In plants, zinc is a key constituent of many enzymes and proteins. It plays an important role in a wide range of processes, such as growth hormone production and internode elongation.
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A. Hornblend
B. Tremolite
C. Diopsite
D. Actinolite
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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