Soil improvement method of yellow soil and red sand stone

Abstract

The present invention discloses a soil improvement method of yellow soil and red sand stone. The soil improvement method comprises the following steps of: (1) applying organic fertilizer and livestock fertilizer to improve the soil structure in spring to autumn, planting paddy rice, and culturing fishes between the paddy rice; (2) applying phosphate fertilizer, potash fertilizer, livestock fertilizer and edible fungi residue in winter, and planting strawberry by using greenhouses; (3) mixing the yellow soil and the red sand stone according to some proportion after the strawberry is shipped to the market in the next year; and (4) adjusting the proportion of the yellow soil and the red sand stone year by year to enable pH value of the soil to be greater than 6.0 and less than 7.5. According to the soil improvement method, through applying the fertilizers, the soil structure is improved, and the soil nutrient is coordinated; utilization rate of the fertilizer is increased, and utilization of the phosphor and potash fertilizers and crop plantation are cooperated to improve the soil structure; and finally the yellow soil and the red sand stone are mixed, the proportion of the yellow soil and the red sand stone is adjusted year by year to enable the pH value of the soil to be greater than 6.0 and less than 7.5, so that the soil is improved.

Description

technical field [0001] The invention relates to a soil improvement technology, in particular to a method for improving yellow soil and red sandstone. Background technique [0002] Most of the existing yellow soil soil is acidic, with a general pH value of 4.0-5.5, heavy texture, poor structure, shallow tillability, prone to drought and waterlogging; low effective fertility, poor permeability, slow nutrient release; poor tillability , Difficult to plow and difficult to rake, high soil acidity, low available phosphorus content, the existing development of the soil is mostly sandy soil, there are different degrees of lime reaction, the soil is slightly alkaline to alkaline, red sandstone is Red sandstone weathered slope deposits or residual deposits, distributed in various parts of the field, reddish brown, sandy to light soil, pH value 8.1, thin soil layer (thickness 35-65cm), soil profile development is not obvious , the soil is cold, the ability to retain water and fertiliz...

AI Technical Summary

Problems solved by technology

[0002] Most of the existing yellow soil soil is acidic, with a general pH value of 4.0-5.5, heavy texture, poor structure, shallow tillability, prone to drought and waterlogging; low effective fertility, poor permeability, slow nutrient release; poor tillability , Difficult to plow and difficult to rake, high soil acidity, low available phosphorus content, the existing development of the soil is mostly sandy soil, there are different degrees of lime reaction, the soil is slightly alkaline to alkaline, red sandstone is Red sandstone weathered slope deposits or residual deposits, distributed in various parts of the field, reddish brown, sandy to light soil, pH value 8.1, thin soil layer (thickness 35-65cm), soil profile development is not obvious , the soil is cold, the ability to retain water and fertilizer is poor, and the young seedlings will not grow old.

[0003] The existing soil improvement methods for alkaline yellow soil and red sandstone are generally to add acidic chemical substances to the soil, such as adding sulfur powder, ferrous sulfate, etc. Although this improvement method can improve the soil into neutral or slightly acidic Soil, but the improved soil fertility is still poor and cannot provide more sufficient nutrients for plant growth