Chemical improvement conditioner suitable for coastal beach and strongly saline-alkaline land and application method thereof

A technology of severe saline-alkali land and conditioner, which is applied in the field of chemical improvement conditioner and soil improver in severe saline-alkali land, which can solve the problems of long soil cultivation cycle, high cost, and slow desalination process, and achieve quick results, low cost, The effect of simple production process

Inactive Publication Date: 2015-01-14
INST OF SOIL SCI CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Technical problem to be solved: the present invention aims at a series of practical problems such as the slow soil desalination process of saline-alkali soil in coastal tidal flats, long soil fertility cultivation cycle, and high cost of existing technical measures, and develops a chemical improvement conditioning for rapid treatment and cultivation of moderate and severe saline-alkali lands in coastal tidal flats and propose a set of optimized application methods for different planting methods, planting seasons and soil salinity conditions

Method used

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  • Chemical improvement conditioner suitable for coastal beach and strongly saline-alkaline land and application method thereof
  • Chemical improvement conditioner suitable for coastal beach and strongly saline-alkaline land and application method thereof
  • Chemical improvement conditioner suitable for coastal beach and strongly saline-alkaline land and application method thereof

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Embodiment 1

[0040] Moderately saline-alkali land along the coast of Jiangsu Province. The salt content of the 0-20cm plow layer soil in the test plot is 2.4-3.7g / kg, which belongs to moderate saline-alkali land, pH is 9.63, organic matter content is 8.81g / kg, total nitrogen is 0.39g / kg, and alkali-hydrolyzed nitrogen is 38.27mg / kg, available phosphorus is 9.59mg / kg, and available potassium is 196.11mg / kg. Location: Chuanzhu Village, Caomiao Town, Dafeng City, located in Zhugang, Caomiao Town, Dafeng, Yancheng, Jiangsu Province. The experiment period was from June 2012 to May 2013. The test plot was reclaimed in 2004, and the east of the test site is 3.9 kilometers from the coastline.

[0041] Prepare 4 improver formulations, namely P1, P2, P3 and P4. Among them, formula 1 (P1): 60 parts of phosphogypsum, 28 parts of aluminum sulfate, 8 parts of aluminum sulfate, 4 parts of potassium dihydrogen phosphate; formula 2 (P2): 50 parts of phosphogypsum, 34 parts of aluminum sulfate, 14 parts ...

Embodiment 2

[0068] Select 2 test plots for medium and severe saline-alkali lands in coastal beaches of Jiangsu Province. The salt content of the 0-20cm plow layer soil of plot 1 is 2.9-4.4g / kg, which belongs to moderate saline-alkali land, pH is 9.31, organic matter content is 10.46g / kg, total nitrogen is 0.45g / kg, and alkali-hydrolyzed nitrogen is 37.84 mg / kg, available phosphorus is 10.16mg / kg, and available potassium is 224.37mg / kg. The salt content of the 0-20cm plow layer soil in the test plot 2 is 3.6-5.2g / kg, which is a severe saline-alkali land, with a pH of 9.38, an organic matter content of 9.27g / kg, a total nitrogen of 0.33g / kg, and an alkali-hydrolyzed nitrogen of 34.78 mg / kg, available phosphorus is 9.28mg / kg, and available potassium is 241.57mg / kg. Location: Huanghai original seed farm in Dongtai City, located at the southeast head of Kaigang Town, Dongtai City, Yancheng City, Jiangsu Province. The experiment period was from May 2013 to October 2013. The test plot was recl...

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Abstract

The invention relates to a chemical improvement conditioner suitable for a coastal beach and a strongly saline-alkaline land and an application method thereof. The chemical improvement conditioner comprises the following components in parts by weight: 50-70 parts of ardealite, 20-30 parts of humic acid, 5-10 parts of aluminum sulfate and 3-5 parts of potassium dihydrogen phosphate. The chemical improvement conditioner disclosed by the invention has the advantages of simple improver component and preparation process, clarity in principle, low cost and quick effect. The application method of the chemical improvement conditioner aiming at different planting modes and soil salinity conditions provides an optimized application mode of 'less use for dry farming, more use for water farming, less use for a dry season, more use for a rainy season, more use for double salt and less use for light salt' by comprehensively considering the plant modes, soil salt contents and the rainfall difference of different seasons, thereby improving the desalting and alkali-improving efficiency, farthest decreasing the residues of an improver in soil and realizing multiple purposes of salt leaching, soil improvement and fertility improvement of the coastal beach and the saline-alkaline land.

Description

technical field [0001] The invention belongs to the technical field of obstacle farmland management and relates to a soil conditioner, in particular to a chemical improvement conditioner suitable for medium and severe saline-alkali land and an application method thereof. Background technique [0002] Soil salinization and secondary salinization are one of the main problems of soil degradation in my country and the world today. my country's saline soil resources are widely distributed in 17 provinces and regions mainly in the north. nearly 5% of the area. Among them, the total area of ​​coastal saline-alkali land is about 2.35 million hm 2 , and now it is still 20,000-30,000 hm per year 2 The speed is stagnated. As a potential reserve land resource, coastal saline-alkali land has huge room for improving agricultural productivity. With the rapid reduction of cultivated land in my country, in order to ensure the "red bottom line" of 1.8 billion mu of cultivated land and rea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04A01B79/02C05G3/80
CPCC09K17/40C09K2101/00C09K2109/00Y02A40/10
Inventor 姚荣江杨劲松曲长凤余世鹏李芙荣张建兵
Owner INST OF SOIL SCI CHINESE ACAD OF SCI
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