Step-type improving method for severe soda saline-alkali soil

Abstract

The invention discloses a step-type improving method for severe soda saline-alkali soil, and belongs to the technical field of improvement and utilization of degraded soil. The method solves the problem of low desalinization rate of soil by directly planting rice in soda saline-alkali soil in the existing method. The improving method comprises the following steps: step one: a, selecting a strong saline-alkali resistant plant puccinellia tenuiflora; b, establishing a grid field; c, carrying out heavy harrowing and land preparation; d, carrying out seeding without covering soil, concretely sowing puccinellia tenuiflora seeds in the severe saline-alkali soil subjected to the heavy harrowing and land preparation in a sowing period; e, regulating and controlling moisture; and f, carrying out maintenance and management; and step two: g, carrying out shallow turning and harrowing and land preparation; h, uniformly applying a modifier to the paddy grid field; and i, carrying out regular rice planting and field management. According to the method, the improvement and utilization of the severe soda saline-alkali soil is divided into two stages, namely, in the first stage, the adaptability ofthe strong saline-alkali resistant plant to the severe saline-alkali is utilized, and in the second stage, the rice planting is carried out on the basis of reduced saline-alkali resistance of the soil in the first stage. The chemical improving input is reduced, and the gradual improvement and utilization of the heavy soda saline-alkali soil is realized.

Description

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AI Technical Summary

Benefits of technology

It describes an improved process called Sodium Sulfate Salinification (SSS), which involves developing crops resisting extreme saltiness by applying special agents or techniques like fertilizers to enhance their ability to absorb water from brackish waters. By doing this, these crops can grow better without causing damage due to excess rainwater runoff during rainy periods. Additionally, SSS helps prevent degraded roots from being absorbed through pores within it, improving its overall quality over other methods such as treatments. Overall, SSA allows for more efficient use of severely affected lands while maintaining good healthy conditions for both people living near them.

Problems solved by technology

The technical problem addressed by this patented technology relates to improving the use of soda brines (NaOH), particularly during cultivation of crops like corn plants, where repeated harvest can lead to reduced yields over time. This issue arises because traditional methods involve draining heavily used areas such as sea floors through drainage systems have resulted in decreased root growth rates. Additionally, conventional ways of applying pesticides may be harmful when applied directly onto sensitive roots. Therefore, new solutions must address these issues while reducing costs associated with existing treatments.