A method for improving carbonate-type saline-alkali land by fish farming

A carbonate type, fish farming technology, applied in land preparation methods, applications, fish farming, etc., can solve problems such as poor improvement effect and complex methods

Active Publication Date: 2020-10-20
HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention proposes a method for improving carbonate-type saline-alkali land by using fish farming to solve the problems of poor improvement effect and complicated methods in existing methods for improving carbonate-type saline-alkali land

Method used

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  • A method for improving carbonate-type saline-alkali land by fish farming
  • A method for improving carbonate-type saline-alkali land by fish farming
  • A method for improving carbonate-type saline-alkali land by fish farming

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Experimental program
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specific Embodiment approach 1

[0044] Specific implementation mode one: the method for utilizing fish farming to improve carbonate type saline-alkali land in this implementation mode is carried out according to the following steps:

[0045] 1. Setting of saline-alkali land

[0046] Choose carbonate-type saline-alkali land, divide the saline-alkali land into several saline-alkali land units on average, build dams at the edge of each saline-alkali land unit, dig ditches around the dams, and lay several parallel water-collecting lines in the soil layer of each saline-alkali land unit. Branch pipe, laying the main water collection main pipe in the soil layer in the saline-alkali land, the outlet of the water collection branch pipe is connected to the water collection main pipe, and the outlet of the water collection main pipe is set in the sump outside the saline-alkali land; plant pasture, corn in each saline-alkali land unit or soybeans;

[0047] The setting depth of the water-collecting main pipe is greater...

specific Embodiment approach 2

[0069] Embodiment 2: This embodiment differs from Embodiment 1 in that: the ditch described in step 1 has a depth of 60-80 cm and a width of 70-90 cm. Other steps and parameters are the same as those in the first embodiment.

specific Embodiment approach 3

[0070] Embodiment 3: This embodiment is different from Embodiment 1 or 2 in that: the height of the embankment in Step 1 is 30-50 cm, and the width is 70-90 cm. Other steps and parameters are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a method for adopting fish culture for improving carbonate-type saline-alkaline land, and relates to a method for improving the carbonate-type saline-alkaline land. The methodsolves the problem that an existing method for improving the carbonate-type saline-alkaline land has a poor improvement effect and complicated means. The method comprises the steps of equally dividingthe saline-alkaline land into several saline-alkaline land units, building a dam at the edges, digging a ditch in the outer side of the dam, laying water collection branch pipes and water collectionmain pipes in a soil layer, and forming water outlets of the water collection main pipes in a water collection pool outside the saline-alkaline land; planting forage grass or saline-alkaline-tolerancecrops in each saline-alkaline land unit, selecting a pond, afterwards, stocking fingerlings, putting feed, managing culture, regulating and controlling the water quality, and utilizing pond water forsoil irrigation and washing. The method integrates regulation and control of the water quality through biological floccules, scientific oxygen aeration and scientific feeding, and the purpose that bottom mud of the pond is restored, the alkalinity of the saline-alkaline land is reduced, the water quality environment of the pond is improved, and putting of feed in the culture process is lowered. The method is suitable for improving the carbonate-type saline-alkaline land.

Description

technical field [0001] The invention relates to a method for improving carbonate-type saline-alkali land. Background technique [0002] Saline-alkali soil mainly includes saline soil, alkaline soil and different degrees of salinized soil or alkalized soil. Saline-alkali soil contains more saline-alkali components and has poor physical and chemical properties. Most plants cannot grow normally on the surface of saline-alkali soil. There are about 36 million hm of saline-alkali land in my country 2 , and the salinized area has a tendency to expand year by year. The western part of the Songnen Plain, that is, Jilin Province and the western part of Heilongjiang Province, is one of the five major distribution areas of saline-alkali land in my country, and it is also the largest concentrated distribution area of ​​carbonate-type saline-alkali land, with an area of ​​up to 3.42 million hm 2 . Jilin Province and the western part of Heilongjiang Province have reserve land resources...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/10A01B79/00
CPCA01B79/00A01K61/10Y02A40/22Y02A40/81
Inventor 赵志刚徐伟徐奇友罗亮
Owner HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
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