A method of improving saline-alkali soil

Abstract

The invention discloses a method for improving saline-alkali soil, which comprises the following steps: using a biomass charcoal preparation device to prepare straw into biomass charcoal, mixing biomass charcoal, humic acid and cow dung, composting and fermenting, and composting and fermenting the fermented The mixture is mixed with urea and fly ash to obtain a soil improver, and the soil improver is applied to the soil by a layered application device, and then the soil applied with the soil improver is stirred by a stirring device; the present invention, by setting the layered The application device can open ditches of different depths on the soil, so that the soil conditioner can be applied into the soil of different depths, which is beneficial to the soil improvement of the deep soil, and can improve the uniformity of the soil mixing when the soil is stirred in the later stage and speed, and the first ditching group, the second ditching group and the third ditching group are staggered forward and backward. When ditching forward, three ditches, parallel and different depths can be opened at one time, realizing multi-level application. Soil conditioner.

Description

technical field [0001] The present invention relates to the technical field of soil improvement. Specifically, it is a method of improving saline-alkali soil. Background technique [0002] The salt contained in the soil of saline-alkali land affects the normal growth of crops, and methods such as physical improvement, biological improvement, and chemical improvement are generally used to improve saline-alkali land; To improve, when the soil conditioner is used, it is generally sprinkled directly on the surface of the soil, and then the soil conditioner is mixed with the soil through mechanical equipment. However, if the soil conditioner is sprinkled on the soil surface, it will inevitably lead to the soil conditioner on the soil surface. The concentration is higher than that of deep soil, resulting in a difference in the mixing of soil and amendment; and the existing rotary tillage equipment has limited rotary tillage depth, resulting in limited depth of improved soil. SU...

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Problems solved by technology

[0002] The salt contained in the saline-alkali soil affects the normal growth of crops. Physical improvement, biological improvement, chemical improvement and other methods are generally used to improve saline-alkali soil; Improvement, when the soil conditioner is used, it is generally directly sprinkled on the surface of the soil, and then the soil conditioner is mixed with the soil through mechanical equipment, but the soil conditioner is sprinkled on the soil surface, which will inevitably lead to the soil conditioner on the soil surface. The concentration is higher than that of the deep soil, resulting in a difference in the mixing of the soil and the amendment; and the existing rotary tillage equipment is limited in the depth of the improved soil due to the limited depth of the rotary tillage

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