Alkaline land organic fertilizer and preparation process thereof

Abstract

The invention discloses alkaline land organic fertilizer. The fertilizer comprises, by weight, 15-20 parts of urea, 2-5 parts of ammonium sulfate, 9-13 parts of potassium dihydrogen phosphate, 10-15 parts of phosphate rock powder, 7-10 parts of natural potash magnesium sulphate fertilizer, 15-20 parts of matured compost and 13-20 parts of distiller's grains. Through use of urea, ammonium sulfate,potassium dihydrogen phosphate, the phosphate rock powder, the natural potash magnesium sulphate fertilizer and the distiller's grains, not only can a variety of nutrients be supplemented, but also reduction of the concentration of a soil solution is facilitated, the damage caused by application of chemical fertilizer is reduced, the pH is improved, and the situation of lack of various nutrients is improved. Leaf mould is nutrient soil formed by microbial decomposition and fermentation of plant branches and leaves in the soil. The matured compost is light and loose and has good permeable and ventilating properties, high water and fertilizer retention capacities and long-lasting fertility. The fertilizer is porous, is not hardened after being applied for a long time and can be easily absorbed by plants. The fertilizer is rich in organic matter and humic acid, contains small vitamins, auxins, trace elements and the like and can promote growth and development of the plants.

Description

technical field [0001] The invention relates to the technical field of organic fertilizers, in particular to an alkaline soil organic fertilizer and a production process thereof. Background technique [0002] Alkaline soil refers to soil with a pH value greater than 7; that is, the concentration of hydroxide ions in the soil solution is greater than the concentration of hydrogen ions, and practically refers to soil with a pH value above 7.3. [0003] The formation of alkaline soil is controlled by various factors, and the regional differences are very significant. Salinization and alkalization often occur simultaneously. As the interference intensity of human factors has been continuously expanding, the vegetation on the grassland has also been severely damaged, and these places are mostly coastal and belong to the category of wetlands. The salinity in seawater will also affect the salinity in the land. Lead to serious land salinization, bringing serious harm. [0004] Al...

AI Technical Summary

Problems solved by technology

In saline-alkali soil, due to the high salt content, drought and waterlogging coexist, low organic matter content, poor soil physical and chemical properties, poor buffer performance, low water retention and fertility, and many anions and cations harmful to crop growth, which are not conducive to the growth and development of crops. And the land productivity and carrying capacity are low

[0005] Due to the accumulation of a large amount of salt in the saline-alkali soil, especially the existence of excessive exchangeable sodium in the soil, it is easy to cause the deterioration of the physical properties of the soil, the structure is sticky, the air permeability is poor, the bulk density is high, the soil temperature rises slowly, and the activity of aerobic microorganisms in the soil Poor performance, slow water release, low permeability coefficient, strong capillary action, which lead to the aggravation of surface soil salinization