Soil Organic Matter

Soil organic matter is an important component of the soil solid phase. Although the soil organic matter content accounts for only a small part of the total soil, it has a great influence on soil fertility and soil tillage. The data show that within a certain range, the content of organic matter is positively correlated with the level of soil fertility.

The content of soil organic matter is quite different in different soils, and the content is as high as 20% or more, and the content is less than 1%. The soil organic matter suitable for vegetable cultivation should be kept above 20%. The data provided by the Shouguang City Soil and Fertilizer Testing and Research Center shows that greenhouse soils with organic matter content above 20g/kg often exhibit good permeability, good fertility, and are not prone to stagnation and salinization. Most of the greenhouse soils generally do not meet the standard of 20g/kg. If the vegetables are planted in such soils, there is a risk of salinization if they continue to apply a lot of fertilizer.

To improve soil organic matter, the usual method is to increase the input of manure, such as fresh chicken manure, pig manure, duck manure, rice husk, straw and so on. In recent years, there have been more commercial organic fertilizers on the market. These organic fertilizers, which are fermented and fermented by animal manure, municipal garbage and litter, are also sources of organic matter in greenhouses.

In short, soil organic matter is a lubricant, and soil with high organic matter content, heat, moisture, gas and various nutrient metabolism are coordinated quickly, which is very beneficial to vegetable growth.