Water-soluble secondary salinization land soil fertility restoration agent

Abstract

The invention discloses a water-soluble secondary salinization land soil fertility restoration agent. The restoration agent is prepared from, by mass, 120-180 parts of a phosphate buffer solution, 250-400 parts of soil improvement organic fertilizer, 160-200 parts of nano-calcium carbonate, 120-160 parts of a blue alga decomposition accelerator, 80-120 parts of scindapsus aureus, 30-60 parts of EDTA-Mg, 8-20 parts of monopotassium phosphate, 800-1,200 parts of water and 10-14 parts of a microbial fermentation bacterial agent. According to the water-soluble secondary salinization land soil fertility restoration agent, the humification degree and the harmless degree are high, an obtained fertilizer contains multiple beneficial microorganisms participating in crop growth and has good potency, and after the fertilizer is used, soil is improved, the soil fertility is improved, the immune capability of agricultural and forestry crops is improved, and grain yield increasing is achieved.

Description

technical field [0001] The invention relates to a water-soluble secondary saline-alkali soil fertility restoration agent. Background technique [0002] Soil secondary salinization, also known as "secondary salinization", refers to the process of turning good cultivated land into "salinization" due to unreasonable cultivation and irrigation measures and changes in vegetation. It mainly occurs in my country's North China Plain, Songliao Plain, Hetao Plain, Weihe Plain and other places. There are three main reasons for the formation of secondary salinization: First, the drainage system of farmland is not smooth, and a large amount of water diversion irrigation has raised the groundwater level, increased the speed of groundwater moving upward through the soil capillary and the evaporation of groundwater, thereby increasing the groundwater and the lower level. The salt in the soil accumulates to the surface. Second, unreasonable irrigation destroys the original soil salt water b...

AI Technical Summary

Problems solved by technology

In addition, if the soil is too alkaline, it will affect the availability of nutrients such as phosphorus, iron, manganese, boron, and zinc in the soil, and will easily cause a large amount of nitrogen, phosphorus, and potassium major elements, as well as trace elements such as iron, calcium, and boron.

[0004] At present, most of the fertilizers used in saline-alkali land are ordinary fertilizers. Although ordinary fertilizers can provide some nutrients for the soil, they cannot effectively increase the air permeability of the soil while reducing the soil salinity, soil pH, and soil bulk density. Soil water retention capacity, increase the microbial content in the soil, and comprehensively improve soil fertility