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Rapid comprehensive treatment method of saline-alkali beaches

A tidal flat and fast technology, applied in the fields of soil preparation methods, applications, agricultural machinery and implements, etc., can solve the problems of difficult removal of Spartina alterniflora and high salinity in tidal flats, and achieve good growth and avoid mutual mixing effects

Active Publication Date: 2011-05-18
上海沧海桑田生态农业发展有限公司
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a comprehensive rapid treatment method for saline-alkali tidal flats, which solves the problems of high salinity and difficult removal of Spartina alterniflora in tidal flats, and can reduce the salinity of tidal flats and eradicate them within 8 months. Spartina alterniflora, and making it meet rice growth conditions

Method used

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Embodiment Construction

[0015] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0016] The saline-alkali tidal flat comprehensive treatment method of the present invention specifically comprises the following steps:

[0017] 1. Drain the salt water

[0018] Delineate the tidal flat reclamation area, dig out criss-cross ditches in the low-lying and waterlogged areas in the tidal flat reclamation area through mechanical and manual methods, and completely discharge the seawater in the tidal flat reclamation area. The depth of the ditches is 80cm. The width is 50cm to guide the drainage of the accumulated water; draining the salt water is the premise of desalinating the tidal flat soil. Remove the original salt water.

[0019] 2. Cut off Spartina alterniflora and reeds and crush their rhizomes

[0020] This is an important m...

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Abstract

The invention discloses a rapid comprehensive treatment method of saline-alkali beaches, specifically comprising the following steps: 1. draining saline water; 2. mowing spartina aherniflora and reeds and crashing the rootstocks of the spartina aherniflora and the reeds; 3. allocating a complete irrigation system and introducing freshwater; 4. working soil; 5. washing salt with freshwater and weeding by waterflooding; and 6. leveling soil. In the method, the spartina aherniflora is eliminated by mowing, breaking up, waterflooding and the like, and the problem of reducing the salinity is simultaneously solved in a shorter time by means of draining the original saline water, breaking up multiple times before and after steeping field, strictly separating water inlet and water drain and avoiding mutual doping of freshwater and saline water. Tests have been done on 15,000mu beaches on the agricultural base in Binhai Dongtan, Pudong New area, Shanghai, 12,000mu saline-alkali beaches have the conditions of planting rice within 8 months, and no reeds, spartina aherniflora harm and salt harm occur in the period of rice growth and the rice grows well, thus realizing high yield and bumper harvest and setting a precedent for successfully planting rice in large area on the beaches from which sea water receded in those years.

Description

technical field [0001] The invention relates to a comprehensive rapid control method for saline-alkali tidal flats. By reducing the salinity and eliminating dominant tidal flat plants such as reeds and Spartina alterniflora, the tidal flats can meet crop planting conditions in a relatively short period of time. Background technique [0002] my country has a large area of ​​tidal flat resources, but due to the high salinity and the occupation of space by plants such as reeds and Spartina alterniflora, it is difficult to develop and the cost is high, so that the saline-alkaline tidal flats cannot be effectively used. The existing tidal flat treatment methods are time-consuming. It generally takes 2-3 years of freshwater aquaculture and planting salt-absorbing and salt-tolerant plants to improve the soil. The treatment effect is not satisfactory and cannot meet the needs of economic development. [0003] Chinese Invention Patent Publication No. CN1963037A discloses a method for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/02
Inventor 张正权
Owner 上海沧海桑田生态农业发展有限公司
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