Chapter 12

NCERT
Class 9
Science
Solutions
1. Compare the use of manure and fertilizers in maintaining soil fertility.

Question:

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

Answer:

Manure Fertilizers
Manure increases the fertility of the soil
and improves its structure.
Fertilizers temporarily increase the fertility
of the soil. Fertilizers bring changes in the
basic structure of the soil.
Manure contains less nutrients and
is slowly absorbed by plants.
Fertilizers are absorbed quickly.

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