Method for improving saline and alkaline land through red clover and elaeagnus angustifolia

A technology of red clover and saline-alkali land is applied in the field of soil improvement, which can solve the problems of large manpower, material and financial resources, secondary pollution, unsatisfactory effect, etc., and achieve the effect of reducing the amount of nitrogen fertilizer application, inhibiting evaporation, and inhibiting adverse effects.
CN109874435AActive Publication Date: 2019-06-14HUNAN HYBRID RICE RES CENT +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUNAN HYBRID RICE RES CENT
Publication Date
2019-06-14

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Abstract

The invention relates to the technical field of soil improvement, in particular to a method for improving saline and alkaline land through red clover and elaeagnus angustifolia. The method comprises the following steps of 1, conducting deep tillage and loose ploughing on the saline and alkaline land, and applying decomposed organic fertilizer to serve as base fertilizer; 2, sowing red clover seeds, and inoculating nodule bacteria and arbuscular mycorrhizal fungi; 3, removing overground parts and main roots of the red clover after the red clover is harvested, conducting ditching on the surfaceof soil, and sowing elaeagnus angustifolia seeds. By means of the improvement method, the salt content and pH of the saline and alkaline land are significantly lowered, the contents of soil nutrient substances such as the organic matter, nitrogen, phosphorus and potassium are increased, the growth of the red clover and the elaeagnus angustifolia is better, the economic value of the saline and alkaline land is increased while the saline and alkaline land is improved, and the method has certain practical significance in production.
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Description

Technical field

[0001] The present invention relates to the technical field of soil improvement, in particular to a method for improving saline-alkali soil by using red clover and Elaeagnus. Background technique

[0002] Saline-alkali land is a general term for all kinds of saline soil, alkaline soil, and salinized and alkalized soil. According to the amount of saline-alkali content in the soil, it can generally be divided into three types of mild, moderate and severe saline-alkali land. As an important land resource, soil Salinization has seriously affected the regional ecological environment and food production. According to incomplete statistics from UNESCO and FAO, the global saline-alkali land area reaches 955 million ha 2 , And the total area of ​​saline-alkali land in my country is about 99.14 million hm 2 , Ranking third in the world. Saline-alkaline soil is mainly characterized by stickiness when wet and poor air permeability; when dry, it is hard and has poor water per...

Claims

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