Biological organic bacterial fertilizer for saline-alkali land

Abstract

The invention discloses the technical field of saline-alkali land improvement, and particularly relates to biological organic bacterial fertilizer for saline-alkali land. The fertilizer is prepared from raw materials in corresponding parts by weight as follows: 35-42 parts of furfural residues, 22-29 parts of coal-fired flue gas desulfurization waste, 15-22 parts of cake fertilizer, 15-22 parts ofpig manure, 12-20 parts of peat, 5-6 parts of straw, 0.003-0.006 part of brown sugar and 0.003-0.006 part of a decomposition additive. The furfural residues have lower PH value are relatively suitable for the saline-alkali land and have quick effect on reducing the PH value of soil, pathogenic bacteria in the mixture can be effectively killed after the furfural residues are subjected to primary anaerobic fermentation with straw, pig manure and cake fertilizer; after the brown sugar and the decomposition additive are added for secondary aerobic fermentation, the content of microorganisms in the fertilizer is increased, the pig manure, the straw and the cake fertilizer can further increase the content of organic matter and the content of inorganic nutrients such as nitrogen, phosphorus andpotassium in the fertilizer; peat has higher water and fertilizer retaining capacity, and partial inactivation of microorganisms due to environmental inadaptability in the transitional period of saline-alkali land improvement can be avoided.

Description

technical field [0001] The invention relates to the technical field of saline-alkali land improvement, and specifically relates to a saline-alkali land bio-organic bacterial fertilizer. Background technique [0002] Saline-alkali land means that the land is affected by natural or human factors, causing salt substances to gradually penetrate into the soil, so that the soil contains more salt and alkali, and makes this type of land unusable. The saline-alkali land in China is roughly distributed The area is in the northwest, northeast, north China and coastal areas. The main reason for the formation of saline-alkali land is that the land in relatively arid areas evaporates into water vapor and is discharged into the air, but the salt in the water cannot be eliminated and remains in the air. In the soil, after a long period of accumulation, the salt in the soil gradually increases, thus forming a saline-alkali land. The soil structure of the saline-alkali land is poor, which br...

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Problems solved by technology

[0002] Saline-alkali land means that the land is affected by natural or human factors, causing salt substances to gradually penetrate into the soil, so that the soil contains more salt and alkali, and makes this type of land unusable. The saline-alkali land in China is roughly distributed The area is in the northwest, northeast, north China and coastal areas. The main reason for the formation of saline-alkali land is that the land in relatively arid areas evaporates into water vapor and is discharged into the air, but the salt in the water cannot be eliminated and remains in the air. In the soil, after a long period of accumulation, the salt in the soil gradually increases, thus forming a saline-alkali land. The soil structure of the saline-alkali land is poor, which brings a series of problems such as poor water permeability, easy hardening, and poor microbial activity. Therefore, the soil falls into a vicious circle. growing plants; our country is actively developing green agriculture, striving to produce safe and pollution-free green food, with less use of chemical fertilizers, more and more attention has been paid to bio-organic bacterial fertilizers, which will not cause harm to the application objects Accumulation of harmful substances can promote plant growth at the same time, and the treatment of saline-alkali land requires fertilizers to have the above effects, so as to avoid introducing new salt or other harmful substances into the saline-alkali land and causing secondary pollution to the saline-alkali land, but the existing biological organic bacteria The price of fertilizer is high, resulting in huge cost of saline-alkali land treatment, and the speed of reducing salt and alkali of existing bio-organic bacterial fertilizer is slow, generally not suitable for use in saline-alkali land