Method for improving base material of saline-alkali soil by utilizing aquaculture sludge

A saline-alkali soil improvement and aquaculture technology, which is applied in the field of aquaculture sludge, can solve the problems of aquaculture impact, aquaculture sludge is difficult to handle, etc., and achieve the effects of easy decomposition, accelerated drainage and salt discharge, and increased soil organic matter content

Inactive Publication Date: 2017-02-01
SHANDONG SUNWAY LANDSCAPE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a method for aquaculture sludge to improve the substrate in saline-alkali soil. On the one hand, it can solve the problem that aquaculture sludge is difficult to handle and affect aquaculture. On the one hand, it improves the saline-alkali soil matrix

Method used

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  • Method for improving base material of saline-alkali soil by utilizing aquaculture sludge

Examples

Experimental program
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Effect test

Embodiment 1

[0023] A kind of method that aquaculture sludge is used for saline-alkali soil improvement substrate, it comprises the following steps:

[0024] S1. Prepare aquaculture sludge mixture according to the following formula weight parts: 50 parts of aquaculture sludge, 20 parts of tea residue, 8 parts of polymaleic anhydride, 18 parts of dead leaves, 4 parts of calcium-based bentonite, 20 parts of vermicompost Wherein, in the described aquaculture sludge, by mass percent, nitrogen 13%, phosphorus 17%, potassium 13%, humus 22%, potassium bacteria 0.05%, phosphorus bacteria 0.05%, actinomycetes 0.07% , the balance being sludge; the dead leaves include a mixture of the yellow fallen leaves and old decayed leaves of trees; the tea residues are oolong tea and black tea;

[0025] S2. Leveling the saline-alkali land, then plowing 40 to 60 centimeters deep, and then watering;

[0026] S3, use wind-blown sandy soil to spread evenly on the soil surface of the initial leveling and plowing, t...

Embodiment 2

[0029] A kind of method that aquaculture sludge is used for saline-alkali soil improvement substrate, it comprises the following steps:

[0030] S1. Prepare the aquaculture sludge mixture according to the following formula in parts by weight: 80 parts of aquaculture sludge, 10 parts of tea leaves, 10 parts of polymaleic anhydride, 14 parts of dead leaves, 8 parts of calcium-based bentonite, and 10 parts of vermicompost Wherein, in the described aquaculture sludge, by mass percentage, nitrogen 15%, phosphorus 14%, potassium 18%, humus 20%, potassium bacteria 0.05%, phosphorus bacteria 0.05%, actinomycetes 0.07% , the balance being sludge; the dead leaves include a mixture of pine needles and coconut chaff residues; the tea leaves are a mixture of white tea, green tea and black tea;

[0031] S2. Leveling the saline-alkali land, then plowing 40 to 60 centimeters deep, and then watering;

[0032] S3, use wind-blown sandy soil to spread evenly on the soil surface of the initial le...

Embodiment 3

[0035] A kind of method that aquaculture sludge is used for saline-alkali soil improvement substrate, it comprises the following steps:

[0036] S1. Prepare aquaculture sludge mixture according to the following formula weight parts: 50 parts of aquaculture sludge, 20 parts of tea residue, 8 parts of polymaleic anhydride, 18 parts of dead leaves, 4 parts of calcium-based bentonite, 20 parts of vermicompost Wherein, in the described aquaculture sludge, by mass percent, nitrogen 13%, phosphorus 17%, potassium 13%, humus 22%, potassium bacteria 0.05%, phosphorus bacteria 0.05%, actinomycetes 0.07% , the balance is sludge; the dead leaves include a mixture of the yellow fallen leaves, pine needles and coconut bran residue materials of the trees; the tea residue is a mixture of oolong tea and yellow tea;

[0037] S2. Leveling the saline-alkali land, then plowing 40 to 60 centimeters deep, and then watering;

[0038] S3, use wind-blown sandy soil to spread evenly on the soil surface...

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Abstract

The invention discloses a method for improving a base material of saline-alkali soil by utilizing aquaculture sludge. The method comprises the following steps: S1, preparing an aquaculture sludge mixture from the following components in parts by weight: 50-80 parts of aquaculture sludge, 10-20 parts of tea leaf residues, 8-10 parts of polymaleic anhydride, 14-18 parts of dead leaves, 4-8 parts of calcium bentonite and 10-20 parts of earthworm cast; S2, flattening a saline and alkaline land and deeply plowing for 40cm-60cm by a deep plowing machine; then irrigating with water; S3, uniformly scattering aeolian sandy soil on a soil surface which is subjected to flattening cultivation for the first time, wherein the use amount is 20-30 cubic meters per Mu; then uniformly scattering the aquaculture sludge mixture prepared in the step S1 on the surface of the aeolian sandy soil, wherein the use amount is 15-25 cubic meters per Mu; and finally, continually plowing for two times by utilizing a rotary cultivator, wherein the depth is 20cm-40cm. According to the method provided by the invention, the aquaculture sludge is used for improving the base material of the saline-alkali soil and wastes are utilized, so that the influences on aquatic products, caused by the fact that the aquaculture sludge cannot be treated, are solved, and the base material of the saline-alkali soil is improved.

Description

technical field [0001] The invention relates to a method for improving a substrate in saline-alkali soil, in particular to a method for using aquaculture sludge to improve a substrate in saline-alkali soil. Background technique [0002] Saline-alkali soil is a type of soil formed by salinization or alkalization, including saline soil, alkaline soil and various saline-alkali soils. In arid and semi-arid areas, the salt contained in the bottom soil and groundwater, due to ground evaporation, will cause the salt water to rise to the surface layer with the capillary action of the soil. After the water evaporates, the salt will remain on the soil surface and accumulate. And form saline-alkali land. Due to permanent seawater immersion in coastal areas, saline-alkali land is widely distributed, with high salt content, and excessive soluble salts accumulate on the soil surface or in the soil. The surface soil of saline-alkali land is mostly dry and white, and even forms salt crust...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02C09K17/40C09K109/00
CPCA01B79/02C09K17/40C09K2109/00Y02A40/10
Inventor 王胜
Owner SHANDONG SUNWAY LANDSCAPE TECH
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