Why crops grown in sandy soil need frequent irrigation than the crop grown in clayey soilcrops grown in sandy soil need frequent irrigation than the crop grown in clayey soil?

Answer 1

Because the pore space (the space between soil particles) in sandy soil is so much larger. In sandy soils, the water is drawn by gravity downward and away from the roots quite easily, but in clay soils, the pore space is so much smaller that capillary action holds the water much more tightly. This is the same reason that clay soils flood more easily and take longer to dry out.

Answer 2

Sandy soil has larger particles and drains water quickly, which leads to faster evaporation and less water retention for the crops. Clayey soil has smaller particles and retains water better, requiring less frequent irrigation for crops to access water.