Method for comprehensively modifying saline and alkaline land

A technology of saline-alkali land and mixture, which is applied in the fields of soil preparation methods, chemical instruments and methods, botany equipment and methods, etc. It can solve the problems that are not suitable for large-scale application, and achieve the effects of low cost, quick results, and water saving

Active Publication Date: 2011-09-07
吉林省汇泉农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods have limitations and are not suitable for large-scale application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1 A kind of comprehensive transformation method of saline-alkali land

[0019] In 2007, 1,500 mu of saline-alkali land was reconstructed in Changling County, Jilin Province by comprehensive method. The process and steps are as follows:

[0020] (1) Preparation of saline-alkali soil improver

[0021] The saline-alkali soil improver is composed of 50-80kg of potassium sulfate with a purity of 95wt%, 20kg of calcium alloy, 30kg of zinc sulfate with a purity of 98wt%, 30kg of aluminum sulfate with a purity of 95wt%, 20kg of manganese sulfate with a purity of 95wt%, and boric acid with a purity of 9wt%. 40kg of calcium, 100kg of biological bacteria preparation, 2000kg of 3-10cm long crop stalks or / and plant stems and leaves, 300-500kg of humic acid with a content of 39wt%; mix the above-mentioned saline-alkali soil improvement agent with a mixer, and set aside ;

[0022] (2) Soil preparation and saline-alkali soil improver removal, plowing and rotation

[0023]...

Embodiment 2

[0028] In 2008, nearly 2,000 mu of saline-alkali land was transformed by the same method as in Example 1 in Changling County, Jilin Province. The average rice yield per mu: 495kg in the first year; 557kg in the second year; 648kg in the third year, reaching the normal yield index of ordinary rice fields .

Embodiment 3

[0030] In 2009, Changling County, Jilin Province used the same method as in Example 1 to transform nearly 2,000 mu of saline-alkali land. The average rice yield per mu was 496kg; in 2010, the rice yield per mu was 555kg.

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Abstract

The invention relates to a method for comprehensively modifying saline and alkaline land. The method comprises the following steps: preparing a saline and alkaline land modifier from 50-80kg of 95wt% (percent by weight) potassium sulfate, 30kg of 98wt% zinc sulfate, 30kg of 95wt% aluminum sulfate, 20kg of 95wt% manganese sulfate, 20kg of calcium chelating agent, 40kg of 95wt% calcium borate, 100kg of microbial agent, 2,000kg of crop straw with the length of 3-10cm and 300-500kg of 39wt% humic acid; leveling soil, restoring ridges and digging ditches when the temperature is constantly stable and is over 15 DEG C; uniformly scattering the saline and alkaline land modifier on the surface of the land; turning up the soil so that the saline and alkaline land modifier is uniformly distributed in the deep soil layer of 0-20cm below the surface of the land; irrigating the land with water depth of 5cm for about 10 consecutive days; transplanting saline and alkaline resisting rice seedlings to the modified saline and alkaline land; applying a small amount fertilizer for multiple times without changing the total amount of the fertilizer; and keeping the water in the land shallow.

Description

technical field [0001] The invention belongs to the transformation of saline-alkali land, and relates to a comprehensive transformation method of saline-alkali land. Background technique [0002] The existing saline-alkali land improvement adopts water washing method, sand pressure method or chemical method, etc., all of which have achieved certain results, but the transformation period is long, generally takes 3 to 5 years to complete, and the investment effect is slow. The water washing method mainly irrigates the saline-alkali land, drains the water after a period of time, and then irrigates and drains the water again until it is neutral, which consumes a lot of water. The sand press method uses sand to cover the saline-alkali surface, and also requires irrigation and a large amount of sand. The chemical method essentially uses acid to neutralize saline-alkaline alkali. These methods have limitations and are not suitable for large-scale application. Contents of the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B77/00A01B79/02A01G16/00C09K17/40A01G22/22
Inventor 张殿锡
Owner 吉林省汇泉农业科技有限公司
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