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Method for using agricultural wastes as modifier to repair salinity soil

A technology of agricultural waste and improver, applied in chemical instruments and methods, agriculture, land preparation methods, etc., to ensure sustainable development, increase economic benefits, and improve crop quality

Active Publication Date: 2014-02-26
SHANGHAI ACADEMY OF ENVIRONMENTAL SCIENCES
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for repairing salinized soil using agricultural waste as an amendment in the case of deteriorating protected cultivation soil, thereby increasing soil permeability and inhibiting secondary salinization of saline soil. Guarantee the sustainable development of facility agriculture

Method used

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Embodiment Construction

[0017] The technical solutions of the present invention will be further described below in conjunction with specific examples.

[0018] In facility greenhouses (40m*7m in size), the following six mixing and proportioning methods of application rates with different concentration gradients are selected, and different raw materials are weighed and mixed according to the proportion, and then evenly sprinkled on the plowed fields On the surface of the ground, use a rotary tiller to make the amendment and the secondary salinized soil evenly mixed and leveled, and then sow or transplant after 7 days.

[0019] The mixing ratio of the application amount of the six different concentration gradients is as follows:

[0020] (1) According to the mixing ratio of 1 ton per mu of organic fertilizer and 0.4 tons of straw per mu, the commercial organic fertilizer and straw are fully mixed in proportion, and then spread evenly on the plowed ground surface, using Rotary tiller Rotary tiller, so ...

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Abstract

The invention discloses a method for using agricultural wastes as a modifier to repair salinity soil. The method includes: commercial organic fertilizer is mixed with straws or straws are mixed with 1% chitosan to serve as the modifier; the commercial organic fertilizer is well mixed with the straws or the straws are well mixed with chitosan solution according to the proportion of 1-3 tons of commercial organic fertilizer per mu, 0.2-0.6 ton of straws per mu, and 1.1-3.3 tons of chitosan solution per mu, the mixture is evenly spread on the ploughed soil, and a rotary cultivator is used for rotary tillage of the soil to allow the secondary salinity soil to be well mixed with the modifier. By the comprehensive action of the agricultural wastes, the soil can keep much moisture, microbial activity of the soil can be stimulated, soil salinity can be degraded fast, and contends of various ions in the soil can be changed. The method has the advantages that the agricultural wastes are used effectively and turned into wealth, crop yield can be increased, crop quality can be improved, economical benefits can be increased, and sustainable agricultural developments can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of soil improvement, in particular to a method for repairing salinized soil by using agricultural waste as an amendment. Background technique [0002] In recent years, protected cultivation technology has been widely promoted throughout the country and has become an important part of my country's agricultural production. Due to the lack of rainwater washing in the soil under the conditions of greenhouses and greenhouses, and the temperature, humidity, ventilation conditions, and water and fertilizer management are quite different from those in open field cultivation. In addition, facility cultivation has long been in high intensity, high multiple cropping index, and high fertilizer input. In this state, a series of soil obstacles such as yield decline, soil secondary salinization, soil acidification, and nutrient imbalance are caused, especially the problem of secondary soil salinization is the most prominen...

Claims

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Application Information

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IPC IPC(8): A01B79/02C09K17/32C09K101/00
Inventor 郭春霞沈根祥钱晓雍顾海蓉王振旗
Owner SHANGHAI ACADEMY OF ENVIRONMENTAL SCIENCES
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