What are the characteristics of soil fertility with different textures?

China has a vast territory and abundant resources, a wide basin area, great changes in vegetation division, and different geological landforms and soil structures. The common soil types in China are: black soil, loess, sandy loam and white alkaline earth. Because it is not used for formation, its fertility is different.

Black soil, black soil is a kind of thick black soil with the best fertility. Rotting plants gather in large quantities and have high acidity, so they generally appear in the south of China. It is also a good first choice soil structure for excellent rice planting, with high viscosity, good water storage performance and high fertility, and it is also a soil selection variety for water-fish mode in rice fields.

Loess, a kind of soil with some characteristics in northwest China, is several thousand meters deep in some places. Its color is yellow and white, its texture is thicker than black soil, its fertility is low and its soil is loose. In the northwest, because of the scene farming, the soil of heaven and earth also has good fertility, and it has become an excellent breeding base for wheat and other grains. It is also the requirement of high starch potato for fertile soil, and it is the main source of food crops in China, feeding a large number of people in the country.

Sandy loam is a kind of soil mixed with sand, which generally appears in riverbed and water impact zone. The soil is hard, loses water quickly, and crops are difficult to grow.