OBJECTIVE FORESTRY

Detailed explanation-1: -The first type of soil is sand. It consists of small particles of weathered rock. Sandy soils are one of the poorest types of soil for growing plants because it has very low nutrients and poor water holding capacity, which makes it hard for the plant’s roots to absorb water.

Detailed explanation-2: -Sand does not hold any water and clay particles hold water so tightly to the particle surface that plant roots are unable to extract it from the soil. Silty soils are also heavier than sandy soils, and holds up nutrients and make it better for crop cultivation.

Detailed explanation-3: -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-4: -The sand particles have large enough space between them for passing water through it. This is the reason why sandy soil drains faster than other types of soil. Sandy soil is good for growing vegetables because it has good drainage and it warms up well. Unlike clay soil, it doesn’t hold its nutrients.

Detailed explanation-5: -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.