Question

Describe methods of irrigation which conserve water.
Explain how Fertilizers are different from Manures?​

Answer 1

Answer: The method of irrigation that conserve water is called spring irrigation. Difference between fertilizer and manure are

Fertilizer = It may be artificial substance. There are chemical added to increase fertility. They prepared in factories. It doesn't provide humus to the soil.

Manure = It is organic substances in nature. They are rich in humus but not contain harmful items. It doesn't have specific nutrients. Not readily soluble in water, so it is slowly absorb by the plants

Explanation:

Answer 2

Irrigation: the supply of water at regular intervals is known as irrigation.
•Fertilisers:(1)fertiliser are man made inorganic salt.
(2) They are prepared in factories .
(3) They does not provide any humus to the soil.
(4) They are rich in plant nutrients like phosphorus,nitrogen, and potassium.
• Manure:(1) manures are organic substance obtained from decomposition of cattle dung and plant residues.
(2) They are prepared in fields.
(3) They provides lots of humus to the soil.
(4) They are relatively less in plant nutrients.
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