Soil organic matter is an important material basis for soil fertility. Soil fertility can be monitored using a soil nutrient analyzer. 2 Ton Wheel Loader,Compact Wheel Loader,High Dumping Loader,Compact Wheel Loader For Sale Shandong Yineng Heavy Industry Co.,Ltd , https://www.yinengloader.com
Soil organic matter not only contains various nutrients, but also is the energy of soil microbial life activities. It plays an important role in adjusting soil fertility factors such as soil water, fertilizer, gas, and heat, as well as improving soil physical and chemical properties and cultivability. In a certain range, the high content of organic matter in the soil has a good effect on promoting the growth and development of tobacco plants and harmonizing the chemical composition of tobacco leaves. It can effectively improve the aroma quality and aroma, and reduce the gas and irritation. The suitable soil organic matter content of flue-cured tobacco is different due to different climatic conditions and soil types, which are 10-20g/kg in the north and 15-30g/kg in the south. The results of nutrient surveys of major tobacco-planting soils in China showed that the average contents of soil organic matter in the tobacco-growing areas of Huanghuai, Central South and Southwest, the two lakes, and the northeastern tobacco were 13.4, 27.0, and 33.0 g/kg, respectively.
Therefore, in Huanghuai tobacco area, appropriate organic fertilizer should be applied, or straw should be used to increase the content of soil organic carbon, but it should not increase the content of soil organic nitrogen; in some tobacco areas with high organic matter, there should be fewer seasons. Applying or not applying organic fertilizer, or applying organic fertilizer to the former crop of tobacco, can both fertilize the soil and improve the soil structure. At the same time, it can also ensure that soil nitrogen can be well controlled during the growth of flue-cured tobacco. Change.
The soil analyzer is mainly used for the analysis of the composition of soil or the physical and chemical properties of the soil, and for the development of the soil, the evolution of fertility, and the evaluation of the soil resources. Soil analysis has a great influence on the development of soil science. The analysis of the soil by the soil analyzer is mainly to determine the content and some properties of various chemical components of the soil. Common determination items include: determination of total soil mineral content, determination of soil active silicon, aluminum, iron and manganese, determination of soil total nitrogen, total phosphorus and total potassium, determination of soil available nutrient content, and determination of soil organic matter content.
Relationship between tobacco leaf quality and soil nutrient content