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Figure 15.1 shows two crop fields [plots A and B] have been treated by manures and chemical fertilizers respectively. Keeping other environmental factors same. Observe the graph and answer the following question(i) Why does plot B show sudden increase and then gradual decrease in yield? |
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Answer» Figure 15.1 shows two crop fields [plots A and B] have been treated by manures and chemical fertilizers respectively. Keeping other environmental factors same. Observe the graph and answer the following question (i) Why does plot B show sudden increase and then gradual decrease in yield? |
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