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Improvement method of saline-alkali land

A saline-alkali land and soil technology, applied in the direction of soil preparation methods, chemical instruments and methods, organic fertilizers, etc., can solve secondary saline-alkali land and other problems, achieve deep root system, increase permeability and water and fertilizer retention, and improve saline-alkali soil Effect

Inactive Publication Date: 2017-03-01
滁州市朝昱农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Saline-alkali land means that the soil (especially the soil surface 0-20cm) contains a large amount of soluble salts such as sodium chloride and sodium carbonate, which seriously affects the growth of crops. Saline-alkali land is generally dry in climate with little rain, large evaporation, low terrain, and groundwater level. The inland saline-alkali soil in my country is mainly distributed in Northeast China, North China, Northwest China and other places. Although some areas build gardens and green spaces on good land, they use underground saline water Irrigation can also cause secondary saline-alkali soil

Method used

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Examples

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Embodiment 1

[0016] Embodiment 1: a kind of improvement method of saline-alkali land, comprises the steps:

[0017] (1) Sprinkle 1000kg / mu of phosphogypsum powder evenly on the soil surface; use a rotary tiller to perform rotary tillage on the fertilizer and the surface, the depth of the rotary tillage is 30cm, water the soil where the phosphogypsum powder is sprinkled, and soak for 3 days, The thickness of the water layer above the soil is 7cm; the solution prepared by the sodium ion adsorbent cationic polyacrylamide is evenly sprayed on the water layer, and continued to soak for 2 days; the water in the saline-alkali soil is drained. Ditch drainage in the low places of saline-alkali land;

[0018] (2) After applying nitrogen, phosphorus and potassium fertilizers to the surface 5cm of soil, turn over the soil to expose the lower soil, add attapulgite, waste fungus chaff, humic acid, bagasse, and compound bacterial agents to the lower soil for rotary tillage and mixing Finally, sprinkle a...

Embodiment 2

[0022] A method for improving saline-alkali land, comprising the steps of:

[0023] (1) Sprinkle 300kg / mu of phosphogypsum powder evenly on the soil surface; use a rotary tiller to perform rotary tillage on the fertilizer and the surface, the depth of the rotary tillage is 20cm, water the soil where the phosphogypsum powder is sprinkled, and soak for 2 days, The thickness of the water layer above the soil is 10cm; the solution prepared by the sodium ion adsorbent cationic polyacrylamide is evenly sprayed on the water layer, and continued to soak for 1d; the water in the saline-alkali soil is drained, and the method of water draining is to Ditch drainage in the low places of saline-alkali land;

[0024] (2) After applying nitrogen, phosphorus and potassium fertilizers to the surface 10cm of soil, turn over the soil to expose the lower soil, add attapulgite, waste fungus chaff, humic acid, bagasse, and compound bacterial agents to the lower soil for rotary tillage and mixing Fi...

Embodiment 3

[0028] A method for improving saline-alkali land, comprising the steps of:

[0029] (1) Sprinkle 650kg / mu phosphogypsum powder evenly on the soil surface; use a rotary tiller to perform rotary tillage on the fertilizer and the surface, the depth of the rotary tillage is 15cm, pour water on the soil where the phosphogypsum powder is sprinkled, and soak for 3 days, The thickness of the water layer above the soil is 3cm; the solution prepared by the sodium ion adsorbent cationic polyacrylamide is evenly sprayed on the water layer, and continued to soak for 2 days; the water in the saline-alkali soil is drained, and the method of water draining is Ditch drainage in the low places of saline-alkali land;

[0030] (2) After applying nitrogen, phosphorus, and potassium fertilizers to the surface 8cm of soil, turn over the soil to expose the lower soil, add attapulgite, waste fungus chaff, humic acid, bagasse, and compound bacterial agents to the lower soil for rotary tillage and mixin...

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Abstract

The invention discloses an improvement method of saline-alkali land and relates to the field of geological reconstruction. Through three steps of soil rapid salt elimination, subsoil treatment and green plant long-term improvement, the double effects of rapid plantation of desired plants and long-term improvement of soil can be realized. by the salt elimination method, quality of soil is rapidly improved, pH of soil is reduced, salt substances in soil are reduced, and permeability and water-retention fertilizer-conservation properties of soil are increased. As for subsoil, attapulgite and bagasse are utilized for lessening soil, waste fungus bran, humic acid and complex microbial inoculants are used for realizing chronic digestion of salt, long-term improvement of saline alkali soil is realized, and re-accumulation of soil is reduced. By the use of carbon slime, uprise of salt can be obstructed, and survival rate and growth rate of plants planted the first time are enhanced. As green plants have strong salt absorption capability and deep roots, the green plants can fully take away salt in soil during the growth process. Thus, the problem of high salt content of soil is fundamentally solved.

Description

technical field [0001] The invention relates to the field of geological transformation, in particular to a method for improving saline-alkali land. Background technique [0002] Saline-alkali land means that the soil (especially 0-20cm of the soil surface) contains a large amount of soluble salts such as sodium chloride and sodium carbonate, which seriously affects the growth of crops. Saline-alkali land is generally dry and less rainy, with large evaporation, low terrain, and groundwater levels. The inland saline-alkali soil in my country is mainly distributed in Northeast China, North China, Northwest China and other places. Although some areas build gardens and green spaces on good land, they use underground saline water Irrigation can also cause secondary saline-alkali land in the soil. The most intuitive manifestation of saline-alkali soil is soil compaction and poor soil structure. After irrigation, soil particles are easy to disperse and form crusts, thereby preventing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40A01B79/00C09K101/00C09K109/00
CPCC09K17/40A01B79/00C09K2101/00C09K2109/00
Inventor 辛松
Owner 滁州市朝昱农业科技有限公司
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