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A method for rapid construction of soda salinized dry fields

A salinization and soda technology, which is applied in the fields of soil preparation methods, botany equipment and methods, horticulture, etc., can solve the problems of difficulty, high cost, and incomplete transformation of medium-to-severe saline-alkali land, and is beneficial to irrigation and drainage of salt Or the effect of washing salt with precipitation, low cost, and enhanced effect

Inactive Publication Date: 2016-01-13
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of difficulty and incomplete transformation of medium and severe saline-alkali land in the western part of the Songnen Plain, and the existing transformation methods have the problem of high cost, and provide a method for quickly constructing soda salinized dry fields

Method used

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  • A method for rapid construction of soda salinized dry fields
  • A method for rapid construction of soda salinized dry fields
  • A method for rapid construction of soda salinized dry fields

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specific Embodiment approach 1

[0030] Specific implementation mode one: a kind of method for quick construction of soda salinization dry field is completed according to the following steps:

[0031] 1. Build irrigation and drainage ditches: design the direction of field irrigation and drainage ditches according to the topography of the saline-alkali wasteland to be developed, and dig ditches horizontally and vertically with a unit of 3 hectares to 5 hectares. or rainwater to drain salt;

[0032] The depth of the large ditch described in step 1 is 1.5m-2.0m, the width is 2.0m-2.5m, the depth of the small ditch is 0.8m-1.2m, and the width is 1.5m-2.0m;

[0033] 2. Leveling the land: strip the topsoil from the saline-alkali spot on the soda salinized dry field. The thickness of the stripped soil layer is 20cm to 25cm. Fill the stripped topsoil into the low-lying place or remove it from the soda salinized dry field ; Then carry out land leveling, and keep the topsoil with vegetation in the plow layer; if the s...

specific Embodiment approach 2

[0051] Embodiment 2: This embodiment differs from Embodiment 1 in that: the depth of the large ditch described in step 1 is 1.8m-2m, and the width is 2.0-2.5m. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0052] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the depth of the small ditches described in step 1 is 0.8m-1.2m, and the width is 1.5m-1.8m. Other steps are the same as those in Embodiment 1 or 2.

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Abstract

The invention relates to a reclamation method for saline and alkaline land, in particular to a method for rapidly constructing soda salinized dry farmland, and aims to solve the problems that reclamation of moderately-severe saline and alkaline land in the west area of Songnen plain is difficult and incomplete and existing reclamation methods are high in cost. The method specifically includes the steps of building of irrigation and drainage ditches, land formation, straw landfill, applying of ameliorant and organic fertilizer, rotary tillage, ridging and crop planting. The method has the advantages that the technical problems of high soil salinization degree, reclamation difficulty and incompleteness and high reclamation method cost of the existing saline and alkaline land in the west area of the Songnen plain are effectively solved; the method is relatively low in reclamation cost, effective, high in operability and applicable to extensive popularization and application; the pH (power of hydrogen) value of soil is lowered remarkably after reclamation, and emergence rate of crops is remarkably increased and the crops can grow normally after reclamation.

Description

technical field [0001] The invention relates to a saline-alkali transformation method. Background technique [0002] The western part of the Songnen Plain is the concentrated distribution area of ​​soda saline-alkali soil in my country. The area of ​​saline-alkali land exceeds 50 million mu. The increasing soil salinization has made the ecology of this area increasingly fragile, and salinization control is imminent. Practice has proved that saline-alkali soil can become a valuable cultivated land resource after transformation, so it has also become a potentially precious reserve land resource in our country. The traditional control of saline-alkali land mainly includes water conservancy projects. The purpose of reducing soil salinity is achieved through irrigation and drainage. However, salinized areas are often areas where fresh water resources are scarce, limited by water resources, and the texture of soda saline-alkali soil is heavy. The effect of washing salt with water ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/02A01G1/00
Inventor 黄立华梁正伟
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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