Question

Distinguish between organic manures and chemical fertilizer

Answer 1

Answer:

Explanation:

Organic Manures

Fertilizers

Nutrients from natural sources. Nutrients from artificial sources.

Natural or organic origin Mineral origin

Low nutrient compared to fertilizers. High nutrient content

Very complex Simple salts.

30 days or more to decompose. Soluble or give rapid response.

Organic nutrients contain all the nutrients. Only specific nutrient.

Do not cause side effects Cause side effects

Examples: Excrete of animals, animal matter (blood, bones, flesh, horn) Examples: urea, NH3SO4, Superphosphate.

Answer 2

Explanation:

MANURES manures are completely organic that can be made in a field or garden. it adds a lot of humus to soil. it is cheaper than fertilisers

FERTILISERS

IT is a inorganic salt and prepared in factories. it does not add humus to the soil. it have essential nutrients like nitrogen, phosphorus, pottasium.

it is costly

example of fertilisers urea and potash

example of manure sesbania, cow dung,sunn hemp