Both manures and fertilisers replenish soil fertility. Compare and contrast the advantages and disadvantages of using them.
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advantages of manure
* it is rich in organic nutrients
* these are biodegradable
*these are does not harm water bodies
* these are environment friendly
disadvantage of manure
* these are heavy and bulky to transport
* these are poor in nitrogen pottassium and phosphous
advantages of fertilizers
* these are rich in nitrogen potassium and phosphorus
* these are compact and easier to transport
disadvantages of fertilizers
* these are not biodegradable
* these cause soil pollution
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