INDIAN GEOGRAPHY

Detailed explanation-1: -Clay soil retains more water because of the presence of small and fine particles. Loamy soils have medium size particles, so it retains moderate amount of water. Sand with low nutritional content and larger particles retain the least amount of water.

Detailed explanation-2: -Generally speaking, clay-rich soils have the largest pore space, hence the greatest total water holding capacity.

Detailed explanation-3: -Clay Soil, because of its small particles and very tiny pore space, absorbs water at a rate of less than 1/4 inch per hour. Water, literally runs off this type of soil. Yet, clay soil can hold large amounts of water when it is absorbed. However, some of the water is held so tightly that plants cannot use it.

Detailed explanation-4: -Clay particles have the ability to physically and chemically “hold” water molecules to the particle more tightly than sands or silts. Sands “give up” the water between the pores much easier than silts or clays. A good portion of the water – upwards of 50% – in any soil remains unusable to the plant.