Question

Manures help in

• A. growth of helpful soil organisms.
• B. increasing air gaps of soil.
• C. increasing water holding capacity.
• D. enriching soil with nutrients.

Answer 1

Answer: (A), (C), (D)

enriching soil with nutrients.

Manures are the organic substances formed by decomposition of animal excreta and plant waste.
Manure aids farmers in the following ways:
(i) It provides ideal conditions for the growth of helpful soil organisms. Presence of a good number of organims in the soil indicate soil fertility.
(ii) It adds organic matter which increases the water holding capacity of the soil.
(iii) The organic matter in manure and wastes of soil organisms enrich the soil with nutrients.