Question

a) Ajay, an illiterate farmer does not understand the difference between manure and
fertilizer. Help him to differentiate between them in terms of their composition.
b) Justify the use of manure highlighting two of its advantages.
c) Mention one drawback of the excessive use of fertilizer

Answer 1

Ajay, Fertilizers are a chemical substances made in factories. It is a mixture of chemical substances,One example is NPK. The fertilizers are rich in only a particular nutrient.
Manure are Natural substances which comes from decomposition of plants waste and animal waste. Manure is less rich in nutrients.It improves the fertility of the soil.
Hope this helped...

Answer 2

☺☺ HEY DUDE ☺☺

HERE IS YOUR ANSWER,
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(a) DIFFERENCE :-

Fertiliser : 
1.) A fertiliser is an inorganic salt. 
2.) A fertiliser is prepared in factories. 
3.) A fertiliser does not provide any humus to the soil. 
4.) Fertilisers are very rich in plant nutrients like nitrogen, phosphorus and potassium. 

Manure : 
1.) Manure is a natural substance obtained by the decomposition of cattle dung, human waste and plant residues. 
2.) Manure can be prepared in the fields. 
3.) Mqnure provides a lot of humus to the soil. 2
4.) Manure is relatively less rich in plant nutrients. 
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(b) Manure is a natural substance which is used as fertiliser to increase the fertility of the soil .
It also adds organic matter to the soil which may improve soil structure, aeration, soil moisture-holding capacity, and water infiltration.
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(c) IF we use fertiliser in excessive amounts then it will also be harmful for the crops .

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Hope it helps u !!

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