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A method for improving saline-alkali land and its application

A technology for saline-alkali land and plant straws, which is applied in land preparation methods, applications, agriculture, etc., can solve the problems of environmental damage and high improvement costs, and achieve the effects of reducing salt content, easy farming, and inhibiting salt return.

Active Publication Date: 2021-11-30
HUNAN HYBRID RICE RES CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to avoid the deficiencies in the above-mentioned prior art, the present invention provides a method for improving saline-alkali land and its application, which solves the technical problems of high cost of improvement and damage to the environment in the improvement of existing saline-alkali land

Method used

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  • A method for improving saline-alkali land and its application
  • A method for improving saline-alkali land and its application
  • A method for improving saline-alkali land and its application

Examples

Experimental program
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Embodiment 1

[0028] An embodiment of the present invention provides a method for improving saline-alkali land, which includes the following steps:

[0029] S1: The plant stalks are crushed, and then the rhizopus oryzae spore liquid is sprayed on the surface of the plant stalks evenly after watering, and fermented for 10 days; the fermentation temperature is 30° C., and the humidity is kept greater than 65% during the fermentation process.

[0030] The plant stalks are crushed to 50 mesh, and corn stalks are used in this embodiment.

[0031] S2: The fermentation product of the step S1) is uniformly mixed with river mud and peat, and then sprayed with a mixed starter for secondary fermentation; the mixed starter includes MP compound probiotic preparations and nitrifying bacteria; MP compound probiotic preparations and The mass ratio of nitrifying bacteria is 2:1; the temperature of secondary fermentation is 45°C, and the time of secondary fermentation is 5 days.

[0032] S3: plow the saline...

Embodiment 2

[0035] An embodiment of the present invention provides a method for improving saline-alkali land, which includes the following steps:

[0036] S1: Plant stalks were crushed to 100 mesh, corncobs were crushed to 100 mesh, after mixing, the rhizopus oryzae spore liquid was sprayed on the surface after evenly watering, and fermented for 15 days. The degree of fermentation is 35°C, and the humidity is kept greater than 65% during the fermentation process. In this embodiment, corn stalks are selected.

[0037] S2: The fermentation product of the step S1) is uniformly mixed with river mud and peat, and then sprayed with a mixed starter for secondary fermentation; the mixed starter includes MP compound probiotic preparations and nitrifying bacteria; MP is compounded in the mixed starter The mass ratio of the probiotic preparation to the nitrifying bacteria is 3:1. The temperature of the secondary fermentation in the step S2 is 50° C., and the time of the secondary fermentation is 7...

Embodiment 3

[0041] An embodiment of the present invention provides a method for improving saline-alkali land, which includes the following steps:

[0042] S1: The plant straw was crushed to 50 mesh, and the corn cob was crushed to 50 mesh. After mixing, the rhizopus oryzae spore liquid was sprayed on the surface after evenly spreading water, and fermented for 12 days. The degree of fermentation is 32°C, and the humidity is kept greater than 65% during the fermentation process. In this embodiment, corn stalks are selected.

[0043] S2: the fermentation product of the step S1) is uniformly mixed with river mud and peat, and then the mixed starter is sprayed for secondary fermentation; the mixed starter includes MP compound probiotic preparation and nitrifying bacteria, MP compound probiotic preparation and The mass ratio of nitrifying bacteria is 2:1. The temperature of the secondary fermentation is 47° C., and the time of the secondary fermentation is 6 days.

[0044] S3: plow the salin...

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Abstract

The invention provides a saline-alkali land improvement method and application thereof, and relates to the technical field of saline-alkali land improvement. The method for improving saline-alkali land includes the following steps: crushing plant straws, spraying Rhizopus oryzae spore liquid on the surface of the plant straws after evenly spreading water, and fermenting for 10 to 15 days; mixing the fermentation product with river mud and peat evenly, and then spraying the mixed The starter is subjected to secondary fermentation; the mixed starter includes MP compound probiotic preparation and nitrifying bacteria; the improved saline-alkali land is plowed to a depth of 0.5-1.5m; the secondary fermentation product is evenly scattered on the plowed land , and continuous plowing. The method for improving saline-alkali land provided by the invention can significantly reduce the pH value of the soil, reduce the salt content of the soil, improve the fertilizer efficiency of the soil, and be beneficial to the growth of plants.

Description

technical field [0001] The invention belongs to the technical field of saline-alkali land improvement, and in particular relates to a saline-alkali land improvement method and application thereof. Background technique [0002] Saline-alkali land is a type of salt accumulation, which means that the salt contained in the soil affects the normal growth of crops. According to the incomplete statistics of UNESCO and FAO, the area of ​​saline-alkali land in the world is 954.38 million hectares, of which my country is the largest 99.13 million hectares. The formation of alkaline soil and alkalized soil in my country is mostly related to the accumulation of carbonate in the soil, so the degree of alkalization is generally high, and plants in severe saline-alkali soil areas can hardly survive. All kinds of saline-alkali soils are formed under certain natural conditions. The essence of their formation is mainly the redistribution of various soluble salts in the horizontal and vertical...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/00
CPCA01B79/00
Inventor 齐绍武吴朝晖吴俊刘建兵
Owner HUNAN HYBRID RICE RES CENT