How much farmyard manure is required for obtaining 60 kg nitrogen for a crop?
A. 100 tonnes
B. 120 tonnes
C. 140 tonnes
D. 160 tonnes
Answer: Option B
Solution(By Examveda Team)
FYM (farmyard manure) is an important organic resource for agricultural production in livestock-based farming systems in the semi-arid tropics of India.The chemical composition of FYM is nitrogen is 0.5% nitrogen and 0.2% phosphate. 0.5% potassium and 76% of water.
For 60 kg of nitrogen for a crop, 120 tonnes of farmyard manure is required as 1 ton of FYM contains 0.5 kg of Nitrogen.
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