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Method and device for applying layered and heterogeneous straw with different degrees of fragmentation and maturity to saline-alkali land

A technology of decomposing maturity and saline-alkali land, applied in land preparation methods, agricultural machinery and implements, agriculture, etc., can solve problems such as unsatisfactory effect and slow effect, and achieve the effect of reducing the rise of salt content, alleviating salinization, and having a wide range of sources.

Active Publication Date: 2022-05-24
HEBEI UNIV OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Biological improvement requires the smallest investment, but the requirements for salt-tolerant plants are relatively high. It is necessary to have a better understanding of the salt-tolerant mechanism of halophytes, and biological improvement is often slow to take effect
[0007] Traditional improved governance methods are not effective enough and need to be improved urgently

Method used

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  • Method and device for applying layered and heterogeneous straw with different degrees of fragmentation and maturity to saline-alkali land
  • Method and device for applying layered and heterogeneous straw with different degrees of fragmentation and maturity to saline-alkali land
  • Method and device for applying layered and heterogeneous straw with different degrees of fragmentation and maturity to saline-alkali land

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A method for ex-situ application of straws with different fragmentation and decomposing degrees into saline-alkali land in layers. First, the 0-40 cm soil layer of the saline-alkali land is equally divided into 0-10 cm soil layers and 10-20 cm soil layers according to 10 cm layers. , 20 ~ 30 cm soil layer and 30 ~ 40 cm soil layer four soil layers, 0 ~ 10 cm soil layer is applied with straw with a fragmentation of less than 3 cm, and this layer of soil is mixed with slow and controlled release fertilizer, 10 ~ 20 cm Straw with a fragmentation of about 3-5 cm is applied to the soil layer, and straw rot-promoting agent is added at the same time; straw with a fragmentation of about 5-8 cm is applied to the 20-30 cm soil layer, which can wash the upper layer of salt and excessive salt. The water is introduced into the plough layer; the 30-40 cm soil layer is applied with straw with a crushing degree of 8-12 cm, which is conducive to lateral drainage, and at the same time can...

Embodiment 2

[0055] First, the 0-40 cm soil layer of the saline-alkali land is divided into four soil layers, 0-10 cm soil layer, 10-20 cm soil layer, 20-30 cm soil layer and 30-40 cm soil layer, according to 10 cm layers. The 0 ~ 10 cm soil layer is applied with straw with a fragmentation of about 2 cm, and the soil layer is mixed with slow and controlled release fertilizer, and the 10 ~ 20 cm soil layer is applied with straw with a fragmentation of about 3 ~ 5 cm, and straw is added at the same time. Corrosion promoter; 20-30 cm soil layer is applied with straw with a crushing degree of about 5-8 cm; 30-40 cm soil layer is applied with straw with a crushing degree of about 10 cm, and the soil layers are applied from top to bottom. The maturity of straw gradually decreased.

[0056] Select a moderately saline-alkali soil experimental area, the total soil salt content is about 0.45%, and the pH value is 8.9-9.1. Through the above method, the straws of different fragmentation and decomposin...

Embodiment 3

[0061] A method for ex-situ application of straws with different fragmentation and decomposing degrees into saline-alkali land in layers. First, the soil layer of 0-40 cm of the saline-alkali land is equally divided into 0-10 cm soil layer and 10-20 cm soil layer according to 10 cm layer. , 20 ~ 30 cm soil layer and 30 ~ 40 cm soil layer four soil layers, 0 ~ 10 cm soil layer is applied with straw with a fragmentation of less than 3 cm, and at the same time, this layer of soil is mixed with slow and controlled release fertilizer, 10 ~ 20 cm The soil layer is applied with straw with a fineness of 3 to 5 cm, and at the same time, a straw rot accelerator is added, which is conducive to the decomposition of the straw; the 20 to 30 cm soil layer is applied with straw with a fineness of 5 to 8 cm; 30 to 40 cm of the soil layer is applied. Apply straw with a fineness of 8-10 cm. The composting degree of straws applied from top to bottom gradually decreased.

[0062] A slightly salin...

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Abstract

The invention discloses a method and a device for layering and displacing straws with different degrees of fragmentation and maturity into saline-alkali land. The saline-alkali land is divided into multiple soil layers, and straws of different degrees of decomposition and degrees of fragmentation are applied to each layer of soil. , the maturity of the straw applied in each layer of soil from top to bottom gradually decreases, and the degree of fragmentation gradually increases; the economic investment of straw is small, and by making full use of the role of straw in different forms, it can improve the soil texture of saline-alkali land and alleviate the further salinization of saline-alkali land. Alkalization; the device for applying saline-alkali land includes a frame, and multiple storage boxes are installed on the upper end of the frame, and a conveying mechanism is installed at the outlet of the bottom of the storage box; multiple conveying mechanisms are installed on the frame from the front end to the tail end One-to-one corresponding subsoiling shovels; by setting subsoiling shovels of different depths, the shovel tips of different subsoiling shovels respectively advance in the corresponding soil layer, and the conveying mechanism can transfer the soil of different degrees of crushing and maturity in the storage box The straw is transported to the preset soil layer to realize the application of straw to four different soil layers at the same time.

Description

technical field [0001] The invention relates to the technical field of saline-alkali land treatment, in particular to a method and a device for layering and ex-situ application of straws with different fragmentation and decomposing degrees to saline-alkali land. Background technique [0002] At present, the traditional improvement methods for saline-alkali land mainly include: [0003] 1. Physical improvement: It is mainly for leveling the ground, deep ploughing and drying, timely loosening the soil, raising the terrain, and improving the soil in the micro-area on the saline-alkali land. However, this method has a large amount of engineering and high cost, and it takes a long time to achieve the purpose of reducing salt and changing alkali, and the effect is slow; [0004] 2. Irrigation and washing of salt: Use a large amount of fresh water to irrigate the saline-alkali land, so that the salt in the saline-alkali land is dissolved in the water, and then ditch the drainage t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/02
CPCA01B79/02
Inventor 程东娟郭海刚武海霞宋利强
Owner HEBEI UNIV OF ENG
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