Nitrogen is an essential nutrient for plant growth. But farmers
who cultivate pulse crops like green gram, bengal gram,
black gram, etc. do not apply nitrogenous fertilizers during
cultivation. Why?
NCERT Class VIII
Science - Exemplar Problems
Chapter 1. Nuitrion in Plants
Answers
Answered by
52
hey!
Generally plants cannot absorb nitrogen from the air. So farmers apply nitrogen fertilizers to the soil.
But plants like black gram, green gram,etc are leguminous plants. These types of plants have nitrogen fixing bacterias in their roots. These bacteria absorb atmospheric nitrogen directly from air and supply the plant with nitrogen.when these bacterias die the nitrogen mixes with the soil and the soil becomea fertile.
hope it helps....
Generally plants cannot absorb nitrogen from the air. So farmers apply nitrogen fertilizers to the soil.
But plants like black gram, green gram,etc are leguminous plants. These types of plants have nitrogen fixing bacterias in their roots. These bacteria absorb atmospheric nitrogen directly from air and supply the plant with nitrogen.when these bacterias die the nitrogen mixes with the soil and the soil becomea fertile.
hope it helps....
Answered by
8
Answer:
farmers apply nitrogen fertilizers to the soil. But plants like black gram, green gram,etc are leguminous plants. ... These bacteria absorb atmospheric nitrogen directly from air and supply the plant with nitrogen.when these bacterias die the nitrogen mixes with the soil and the soil becomea fertile.
Explanation:
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