Question

why sandy soil is more dry then clay

Answer 1

because sandy soil is moistureless

Answer 2

and soils are often dry, nutrient deficient and fast-draining. They have little (or no) ability to transport water from deeper layers through capillary transport. Therefore, tillage of sandy soils in the spring should be kept to a minimum in order to retain moisture in the seedbed. The nutrient- and water-holding caSand is a very basic soil, made of particles of rock and hard minerals, such as silicon dioxide. The largest of the different types of soil particles, one grain of sand is visible to the naked eye. According to a comparison made by Penn State Extension, if a particle of clay were a BB, a grain of sand would be the size of a chair. Although sand supports very few plant life forms in comparison with other soil types, sand is a valuable component of an optimal soil mixture. The large, relatively stable sand-particle size increases soil aeration, improves drainage in tight soils and creates plant-growth supporting qualities, or tilth. pacity of sand soils can be improved through adding organic material.