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Method for improving saline soil by using cottonseed meals

A technology of salinization and cottonseed meal, applied in the field of oil meal by-products, can solve problems such as harm, low yield of crops, restricting the development of agriculture, animal husbandry and forestry production, etc., to promote plant growth, low use cost, and subsequent value-added space. big effect

Inactive Publication Date: 2011-10-05
SHIHEZI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the ecosystem is harmed by salt ions, the yield per unit area of ​​crops is low, which seriously restricts the development of agriculture, animal husbandry and forestry production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033]The cotton meal of the present invention is obtained from an ordinary oil press factory in Shihezi City, Xinjiang, and is a by-product obtained after extracting cotton oil from cotton seeds. %, crude fat≤1.1%, crude fiber≤10%, lysine 2.5%~2.7%, methionine 0.5%~0.7%, tryptophan 0.5~0.7%, arginine 3.2~3.6%, threonine 1.6% ~1.8%, nitrogen 61.134 g / kg, phosphorus 1.712g / kg, potassium 0.277g / kg, in addition, cotton meal is also rich in selenium, folic acid, lignans, vitamin E, vitamin B6, phytic acid, Fe, Mg , Zn, Cu and other active substances.

[0034] The time was from March to October 2009, and the location was in the 144th regiment cotton field in Shihezi City, Xinjiang. The cotton variety was Xinluzao 33, and the planting area was 8 mu. The specific operation included the following steps:

[0035] (1) Determining the salinity content of farmland soil to determine the degree of salinization of farmland: the measured salt content is 1.934g / kg, which is determined to be m...

Embodiment 2

[0040] This example differs from Example 1 in that the amount of cotton meal applied is 50 kg / mu, and after the cotton meal is spread, the soil is plowed to a depth of 12 cm. After sowing, chemical fertilizers are applied to the farmland at the seedling stage, and the weight ratio of the chemical fertilizers to cotton meal is 1:10.

Embodiment 3

[0042] This example differs from Example 2 in that the amount of cotton meal applied is 55 kg / mu, and after the cotton meal is spread, the soil is plowed to a depth of 13 cm. Apply chemical fertilizers to the farmland at the bud stage of the crops after sowing, and the weight ratio of the chemical fertilizers to cotton meal is 1:11.

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Abstract

The invention relates to a method for improving saline soil, in particular to a method for improving the saline soil by using cottonseed meals. The method is characterized by comprising the following steps of: uniformly broadcasting the cottonseed meals on a soil surface layer before seed sowing, wherein the application amount of the cottonseed meals is 20 to 400 kilograms per acre; and ploughingthe soil after broadcasting the cottonseed meals, wherein the ploughing depth is 10 to 30 centimeters. Compared with the prior art, the method for improving the saline soil by using the cottonseed meals can effectively reduce the salinity of the saline soil, improve the ecological environment of the soil, promote the plant growth, and is economical and practical.

Description

technical field [0001] The invention relates to a method for improving salinized soil, in particular to an application method for improving salinized soil by using cotton meal, a by-product of oily meal obtained after refining oil crops. Background technique [0002] In my country, according to statistics, the area of ​​saline soil is 3.47×107 hm 2 , Soil salinization is a major cause of declining agricultural yields in many arid and semi-arid regions of the world. Excessive salinity in the soil can cause changes in the physical and chemical properties of the soil, leading to the degradation of the growing environment of most crops. Due to the improper development and utilization of land resources by humans, the deterioration of hydrology and hydrogeology is caused, especially since the development of irrigated agriculture. For arid areas For most irrigation areas in China, the formation and development of secondary salinization of soil is due to unreasonable irrigation, im...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/02
Inventor 杨乐樊华崔静王开勇王海江张凤华
Owner SHIHEZI UNIVERSITY
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