The boron supply capacity of the soil
Boron in soil and the effective use of boron are the main factors affecting boron in soil.
The main sources of boron in soil are calcium carbide rock, boronite, boborite, boronite and so on. During the weathering of boron-bearing minerals, boron enters the soil in the form of H3BO3 or H3BO3.
The results showed that the boron content of different types of soils had a significant correlation with the soil-forming parent materials, with high boron content in soils usually developed in sedimentary rocks and low in igneous rocks. The boron content in arid areas is higher than that in humid areas, and in coastal areas is lower than that in inland areas. In our country, the boron content in the soil is between 500 mg/kg and the average level is 64 mg/kg. The boron content in the soil is low, and its ability to supply boron is weak; however, in the case of high boron content, its ability to supply boron is not very strong.
The size of different boron content is closely related to boron content and boron content. Boron is the main source of boron in soil, including water-soluble boron, adsorbed boron, organic boron, and mineral boron. Under certain conditions, these different borons can be converted into each other under certain conditions, and boron is produced by weathering and the action of boron, which will release boric acid or ions, or be adsorbed on the colloid of the soil , thereby maintaining the boron content of the soil.
In addition, through complexation, precipitation, adsorption and other methods, the boron in the aqueous solution is transformed into an inorganic bound state and a mineral state, which is a substance that is difficult to be absorbed by crops. The supply of boron in soil has a great correlation with agricultural production. Low boron has a certain impact on the growth and yield of crops, while boron fertilizer has a great effect on increasing yield.