Microbial water-retaining water-soluble fertilizer for reclamation in rocky desertification bauxite mining area and preparation method thereof

Abstract

The invention discloses a microbial water-retaining water-soluble fertilizer for reclamation in a rocky desertification bauxite mining area and a preparation method thereof. The microbial water-retaining water-soluble fertilizer comprises the following raw materials by weight: 3 to 6 parts of a composite microbial agent, 18 to 22 parts of a polyglutamic acid fermentation broth, 55 to 65 parts of an alcohol concentrated fermentation broth, 1 to 3 parts of potassium dihydrogen phosphate, 3 to 5 parts of potassium nitrate, 5 to 7 parts of ammonium nitrate, 0.5 to 1 part of sodium octoborate tetrahydrate, 0.8 to 1.2 parts of EDTA iron, 0.1 to 0.5 part of EDTA manganese, 0.08 to 0.12 part of EDTA zinc, 0.08 to 0.12 part of EDTA copper, 0.08 to 0.12 part of ammonium molybdate, 0.8 to 1.2 parts of a composite enzyme preparation and 0.8 to 1.2 parts of potassium hydroxide. The water-soluble fertilizer provided by the invention can improve activity of microorganisms in soil, has the performances of water and nutrient retention, soil improvement and the like, and improves fertility.

Description

technical field [0001] The invention relates to the field of agricultural and forestry fertilizers, in particular to a microbial water-retaining water-soluble fertilizer for reclamation in rocky desertification bauxite mining areas and a preparation method thereof. Background technique [0002] At present, Guangxi has a large area of ​​rocky desertification bauxite belt, which is mainly distributed in the Jingxi to Pingguo bauxite belt in Baise City. In the rocky desertification area of ​​Dashishan, especially the mining of bauxite has resulted in the destruction of plants, the disturbance of the ecosystem, and the fragile ecological environment. [0003] Although the application of microbial fertilizers can improve the utilization rate of chemical fertilizers, reduce the extensive use of chemical fertilizers, improve soil, avoid soil salinization and pollute the environment, but due to the common problems of water shortage and fertilizer shortage in reclaimed soil in rocky ...

AI Technical Summary

Problems solved by technology

[0003] Although the application of microbial fertilizers can improve the utilization rate of chemical fertilizers, reduce the extensive use of chemical fertilizers, improve soil, avoid soil salinization and pollute the environment, but due to the common problems of water shortage and fertilizer shortage in reclaimed soil in rocky desertification areas, In particular, the thickness of the bauxite land that has just been reclaimed is only 25-30 cm, the organic matter content is very low, and the soil is more barren, so there are many shortcomings in the application of common microbial fertilizer formulations to the reclaimed land in the bauxite belt in rocky desertification areas. For example, after the fertilizer is applied to the soil, due to the poor physical and chemical properties of the reclaimed soil, the soil is easy to lose water, and at the same time, there is little organic matter, which lacks the nutritional conditions required for the survival of microorganisms, resulting in low survival rate and poor activity of bacteria.

If the number of viable bacteria does not proliferate to a certain level in a short period of time, it will not be able to improve the soil and increase fertility. At the same time, due to water shortage, the use of ordinary fertilizers is limited, and the utilization rate is extremely low, making bauxite in rocky desertification areas The growth of mulberry trees planted in mine reclamation is limited, and reclamation is hindered