Question

•why is excessive irrigation harmful to crops ?
•why do we need to irrigate the fields well before sowing seeds
•why is necessary to dry grains before storing.​

Answer 1

Answer:

1)

Excess water supply to the crops may result in a condition known as water loging.it reduces air in the soil thereby damaging the roots. if too much of water is in the soil then water will log and there wont be an air for the plant to breathe through roots.

2)Before sowing, soil should be prepared well by ploughing and watering. Irrigation helps to moisture and loose the soil. It is necessary to loosen soil Because only loose soil allows the roots to penetrate freely deeper into soil.

3)It is important to dry grains before storing because it contains moisture that is favorable for growing of microorganisms that can spoil the food.

Answer 2

It is the first step in preparation of soil. ... Manuring It is done to add humus, improve texture of soil as well as to replenish nutrients in soil. Irrigation Crop fields are watered at regular intervals to provide moisture for growth and germination of seeds.

Before sowing, soil should be prepared well by ploughing and watering. Irrigation helps to moisture and loose the soil. It is necessary to loosen soil Because only loose soil allows the roots to penetrate freely deeper into soil

If freshly harvested grains are stored without drying, they may get spoilt or attacked by organisms, losing their germination capacity. Hence, before storing them, the grains are properly dried under the sun to reduce the moisture in them.