Method for preparing modified reduced soil

Abstract

The invention relates to a method for preparing modified reduced soil. The method comprises the following steps: adding a biological basic material into obtained mixed soil of multiple stratum soil textures so as to form a soil mixture, then, adding water into the soil mixture, and carrying out blending so as to prepare lumpy or granular mud pies or mud pellets; and then, calcining the mud pies or mud pellets by a high-temperature kiln so as to rapidly evaporate moisture contained in the mud pies or mud pellets from inside to outside and burst the moisture, and then forming the porous mineralized basic modified reduced soil. The modified reduced soil can be used through being directly blended with ordinary soil, so as to improve acidic soil; the modified reduced soil can also be directly mixed / stirred with biological excreta or leftovers so as to prepare compost; or, the modified reduced soil is used for filtering water and serves as an additive of animal feed.

Description

technical field [0001] The invention relates to a method and steps for quickly solving soil acidification and hardening, in particular to a method of using biological alkaline materials to neutralize soil acidity, improve soil performance, and further be able to treat biological excrement and keep pig houses clean. Background technique [0002] Soil is the foundation of farming. In the past farm operations, because the soil can help the growth of crops, farmers would use chemical products to fertilize and eliminate insects on the crops, thus ignoring the essential structure of the soil. Chemical fertilizers contain heavy metals, which remain in the soil and cause soil hardening, agglomeration, and salt accumulation; once the nature of the soil is destroyed and the water retention is poor, it will be easily washed by rainwater and gradually turn into clayey loam. [0003] The average farmer plants their large fields with the same monoculture every year, which creates a shorta...

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Problems solved by technology

[0006] In addition, because the air has long been subjected to factors such as exhaust gas emitted by automobiles, motorcycles and factories, the haze and PM2.5 suspended particulate pollution caused by it, and the nitrate and carbonate groups contained in it are deposited in large quantities with the rainwater. On the ground, the acidification of the land is accelerated, and because of the long-term infiltration into the groundwater layer, the groundwater resources are polluted, which is also the cause of the acidification and hardening of the land

[0007] In addition, factories secretly discharge industrial wastewater, polluting groundwater and irrigation water sources for a long time, which is also one of the causes of land acidification and hardening, leading to long-term fallow

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