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Saline-alkali soil improvement technology

A saline-alkali land and technical technology, applied in the field of soil salinization, can solve the problems of long improvement period, high cost, and slow effect, and achieve the effect of improving physical and chemical properties, easy operation, and preventing return to salt

Pending Publication Date: 2021-06-04
山西田丰圣德生物科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there are many ways to improve saline-alkali land, among which, the principle of ion exchange is used to replace and gather Na+ and CO32- ions in saline-alkali land to improve soil physical and chemical properties; to use plant straw and green manure to improve soil fertility and improve soil structure; through water conservancy project leaching The drainage method mainly removes the salt in the soil. The existing method has a long improvement cycle, high cost, slow effect, and is prone to problems such as returning to salinity after improvement;

Method used

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  • Saline-alkali soil improvement technology

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Embodiment

[0021] The technology of the present invention includes a saline-alkali land improvement agent composed of calcium sulfate, humic acid and surfactant, and crop orange stalks (corn and wheat). The formulation of this amendment is based on soil testing. Specifically, the amount of calcium sulfate used is such that the calcium ion content of the soil cultivation layer reaches 60% of the cation exchange capacity. The special humic acid whose particles are in the range of colloidal particles is selected to make the water-soluble organic matter in the soil cultivation layer reach 0.5%. Orange stems are crushed into 1 to 5 cm particles before use:

[0022] A kind of saline-alkali land improvement technology, the saline-alkali land improvement technology comprises the following steps:

[0023] S1: Deep plow the saline-alkali land before the rainy season, and use the saline-alkali soil improver of the present invention in the soil cultivation layer during the deep plowing process;

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Abstract

The invention discloses a saline-alkali soil improvement technology, and belongs to the technical field of soil salinization. The saline-alkali soil improvement technology comprises the following steps: (1) deeply plowing saline-alkali soil before rainy season, and using a saline-alkali soil modifier in a soil plough layer in the deep plowing process; (2) spraying a soil surface active agent on the surface layer of the soil after ploughing; (3) uniformly spreading crushed straws on the surface layer of the ploughed soil; and (4) after the modifier fully reacts with the soil for a period of time (3-4 weeks), under the conditional situation, fully irrigating the soil with fresh water for 2-3 times to leach salt. According to the saline-alkali soil improvement technology, tillage, physical, chemical and biological improvement methods are comprehensively utilized, the structure of upper soil is changed through the tillage method, the soil conditioner is added to condition the chemical property of the soil, a hydrophobic covering layer is formed on the surface layer of the soil through plant straw, water infiltration is guaranteed, water evaporation is prevented, salt return is prevented, the whole process is easy and convenient to operate, the manual operation frequency is reduced, the physical and chemical properties of the soil are improved, and comprehensive treatment of the salinized soil is realized.

Description

technical field [0001] The invention relates to the technical field of soil salinization, in particular to a saline-alkali land improvement technology. Background technique [0002] Soil salinization is a worldwide problem and an important agricultural environmental problem in my country. Saline-alkali land is widely distributed in China, among which 7.6 million ha of cultivated land is salinized, accounting for about 1 / 5 of the cultivated land area. Soil salinization causes physiological damage to plants and has a great impact on agricultural production. The existing soil improvement methods generally include water conservancy engineering improvement technology, agricultural cultivation improvement technology and other methods. Due to the complex causes of saline-alkali land formation, traditional single improvement measures are difficult to solve the problem. The comprehensive use of chemical, farming, and biological measures in production is an effective method and devel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/00A01B79/02
CPCA01B79/00A01B79/02
Inventor 张润田
Owner 山西田丰圣德生物科技有限公司
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