Question

what is the role of adding organic matter to the soil used for crop cultivation?

Answer 1

The roles of adding organic matter to the soil used for crop cultivation are as follows:

1. Organic matter acts as a reservoir of nutrient supply for organisms living in the soil.
2. Partially decomposed organic matter (humus) can retain up to 90% of its total weight in water.
3. Organic matter can bind soil particles into aggregates thus improving soil structural stability.
4. Organic matter can moderate changes in soil temperature.