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Method for improving southern red soil

A technology of red soil and improver, applied in the direction of soil preparation methods, chemical instruments and methods, soil conditioning materials, etc., can solve the problems of limited effect of improvement, complicated preparation process, limited application, etc., and achieves weak support and easy method , Versatile effect

Inactive Publication Date: 2018-12-14
INST OF SOIL FERTILIZER & RESOURCE ENVIRONMENT JIANGXI ACAD OF AGRI SCI
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Problems solved by technology

But on the whole, the cost of most amendments is relatively high, the preparation process is relatively complicated, and they lack the supplementation of nutrients (especially basic nutrients) in the soil.
Therefore, even though these improvers have a certain effect on improving soil acidity, their effects on crop yield increase and other aspects of soil improvement are relatively limited, which limits their application in actual production.

Method used

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  • Method for improving southern red soil
  • Method for improving southern red soil
  • Method for improving southern red soil

Examples

Experimental program
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Effect test

Embodiment 1

[0027] 1.1 Sampling and analysis

[0028] The sampling time is June 2017, and the sampling method is the grid distribution method, with one point every 500m, and if there is an obstacle, the nearest sample is taken. Take the 5-point sampling method to take soil, mix it evenly, and sieve it. The pH value of soil samples was determined by 2.5:1.0 water extraction potential method; the determination of organic matter (0M) content was by K2Cr207 volumetric method; the determination of available nitrogen (AN) content was by alkaline solution diffusion method; the determination of available phosphorus (AP) content O1sen method is adopted; the determination of available potassium (AK) content adopts ammonium acetate leaching flame photometry; the determination of total nitrogen (TN) content adopts semi-micro Kjeldahl method; the determination of total phosphorus (TP) content adopts molybdenum antimony antibiotic Colorimetric method; Determination of slow-acting potassium (SK) conten...

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Abstract

The invention discloses a method for improving southern red soil. The method comprises: 1, taking a soil sample and determining soil index values T such as soil pH, organic matter content and nutrientcontent, 2, determining a final value Z, a soil index buffer value H, a soil index value T and soil layer soil weight W of the red soil to be improved, wherein W is obtained through a formula of W=improved soil thickness*667*1.1 / 1000, 3, determining the amount F of elements to be used according to the formula of F=(Z-T)*H*W, 4, determining the material for soil improvement and improving the soil,and 5, planting Stylosanthes guianensis in the improved soil and carrying out green manure dressing.

Description

technical field [0001] The invention belongs to the field of soil improvement, and relates to a soil improvement composition and a method for soil improvement. Background technique [0002] Affected by factors such as high temperature and rainy environmental conditions, cations such as potassium, calcium, and magnesium in the soil in southern my country (referred to as red soil) are easily lost through leaching, and the content of iron and aluminum oxides is high. The formed clay minerals It is mainly kaolinite. Therefore, the lack of soil nutrients, strong acidity, poor structure, and weak water and fertilizer retention capacity have become important reasons for the low yield and poor quality of crops in this area, and also restrict the sustainable development of agriculture and comprehensive productivity in this area. important factor for improvement. In recent years, due to the influence of various factors such as fertilization and management, the phenomenon of soil acidif...

Claims

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Application Information

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IPC IPC(8): C09K17/40A01B79/00C05G3/04C09K101/00C09K109/00C05G3/80
CPCA01B79/00C05B13/02C05D3/02C05G3/80C09K17/40C09K2101/00C09K2109/00C05D9/00C05C9/00C05D1/02C05F3/00C05F11/02
Inventor 刘佳陈静蕊秦文婧张杰徐昌旭杨成春唐杉武际曹卫东
Owner INST OF SOIL FERTILIZER & RESOURCE ENVIRONMENT JIANGXI ACAD OF AGRI SCI
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