Modified straw fertilizer capable of improving soil structure and preparation method thereof

Abstract

The invention discloses a modified straw fertilizer capable of improving soil structure and a preparation method thereof. The modified straw fertilizer is prepared from the following raw materials in parts by weight: rice straw, wheat bran, rice hull, peat soil, ammonium bicarbonate, a microbial fermentation inoculant, sodium dihydrogen phosphate, potassium permanganate, humic acid, magnesium sulfate, additives and a proper amount of water. The preparation method comprises the following steps: carrying out ammonification treatment on the rice straw, carrying out microwave radiation for some time, fermenting for a short time, and mixing with the basic carriers and chemical fertilizers. The straw can not be easily decomposed itself, but can be easily decomposed in soil; the microbial inoculant fermentation time is slightly shortened, so that the straw is not fermented too completely, and maintains certain toughness, thereby being beneficial to enhancing the looseness of the soil; and thus, the modified straw fertilizer is very useful in air permeability enhancement and pest control.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and in particular relates to a modified straw fertilizer for improving soil structure and a preparation method thereof. Background technique [0002] For the treatment of straw: the general method of chemical treatment is to use reagents such as acid, alkali, ammonia and oxygen to destroy the cross-linked structure of the three elements in the straw through chemical reactions, reduce the difficulty of digestion, and improve the fermentation efficiency. Acidification treatment is a hydrolysis process, which can be divided into two types: concentrated acid treatment and olefinic acid treatment. However, due to the strong corrosiveness of concentrated acid, considering the pollution problem, it must be recycled after treatment, so olefinic acid treatment is more commonly used; alkalization Treatment of commonly used test NaOH, Ca(OH) 2 , NaHCO 3 etc., its role is to destroy the ether bond of l...

AI Technical Summary

Problems solved by technology

Acidification treatment is a hydrolysis process, which can be divided into two types: concentrated acid treatment and olefinic acid treatment. However, due to the strong corrosiveness of concentrated acid, considering the pollution problem, it must be recycled after treatment, so olefinic acid treatment is more commonly used; alkalization Treatment of commonly used test NaOH, Ca(OH) 2 , NaHCO 3 etc., its role is to destroy the ether bond of lignin, saponify the ester bond between hemicellulose and lignin, weaken the internal hydrogen bond, make the raw material hydrolyze and expand, reduce the degree of polymerization and crystallinity, and accompany some carbon water The dissolution of chemical compounds, soaking in NaOH solution, can cause significant changes in the morphology and structure of lignin in the straw, and the network structure of lignin is destroyed to release cellulose, which is the root cause of the improvement of rice anaerobic fermentation gas production Internal factors

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