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Compare the use of manure and fertilizer...

Compare the use of manure and fertilizers in maintaining soil fertility.

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Manure contains many organic substances of biological origin which can be easily degraded and absorbed by plants. It helps in recycling of biological waste. They increase the fertility of soil for long duration without causing any harm. The chemical fertilizers, on the other hand, improve soil fertility for short duration but cause environmental hazard. Continuous use of fertilizers in a particular area causes destruction of soil fertility.
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