DESALINATION METHOD BY USING SLUDGE TO IMPROVE TOPSOIL OF SALINE AND ALKALINE LAND

A desalination method by using sludge to improve topsoil of a saline and alkaline land. The method includes the following steps: a) mixing the topsoil of the saline and alkaline land and the sludge to form a mixed zone having a permeability coefficient ranging from 1.0*10-6 to 5.0*10-5 cm/s; b) usin...

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Hauptverfasser:	LV, Yiyan, ZHU, Wei, ZHANG, Huiwen, SHU, Shi, WU, Silin, XIN, Pei, BAO, Jianping, WEI, Daiwei
Format:	Patent
Sprache:	chi ; eng ; fre
Schlagworte:	AGRICULTURE ANIMAL HUSBANDRY FISHING FORESTRY HUMAN NECESSITIES HUNTING PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES ORIMPLEMENTS, IN GENERAL SOIL WORKING IN AGRICULTURE OR FORESTRY TRAPPING
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creator	LV, Yiyan ZHU, Wei ZHANG, Huiwen SHU, Shi WU, Silin XIN, Pei BAO, Jianping WEI, Daiwei
description	A desalination method by using sludge to improve topsoil of a saline and alkaline land. The method includes the following steps: a) mixing the topsoil of the saline and alkaline land and the sludge to form a mixed zone having a permeability coefficient ranging from 1.010-6 to 5.010-5 cm/s; b) using sludge to build ridges around the mixed zone, irrigating the mixed zone with fresh water for 2 to 4 months, and keeping a water depth in a range from 10 to 15 cm; c) planting rice in the mixed zone, and irrigating and draining the rice according to the growth characteristics and need of rice. Through a mixture of the topsoil of the saline and alkaline land and the sludge, the mixed zone having the certain permeability coefficient is formed, a structure of the topsoil of saline and alkaline land can be improved, the soil fertility can be increased, the appropriate growth conditions of the rice can be created, and the yield of the rice can be improved. After the structure of the topsoil of the saline and alkaline l
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The method includes the following steps: a) mixing the topsoil of the saline and alkaline land and the sludge to form a mixed zone having a permeability coefficient ranging from 1.010-6 to 5.010-5 cm/s; b) using sludge to build ridges around the mixed zone, irrigating the mixed zone with fresh water for 2 to 4 months, and keeping a water depth in a range from 10 to 15 cm; c) planting rice in the mixed zone, and irrigating and draining the rice according to the growth characteristics and need of rice. Through a mixture of the topsoil of the saline and alkaline land and the sludge, the mixed zone having the certain permeability coefficient is formed, a structure of the topsoil of saline and alkaline land can be improved, the soil fertility can be increased, the appropriate growth conditions of the rice can be created, and the yield of the rice can be improved. 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The method includes the following steps: a) mixing the topsoil of the saline and alkaline land and the sludge to form a mixed zone having a permeability coefficient ranging from 1.010-6 to 5.010-5 cm/s; b) using sludge to build ridges around the mixed zone, irrigating the mixed zone with fresh water for 2 to 4 months, and keeping a water depth in a range from 10 to 15 cm; c) planting rice in the mixed zone, and irrigating and draining the rice according to the growth characteristics and need of rice. Through a mixture of the topsoil of the saline and alkaline land and the sludge, the mixed zone having the certain permeability coefficient is formed, a structure of the topsoil of saline and alkaline land can be improved, the soil fertility can be increased, the appropriate growth conditions of the rice can be created, and the yield of the rice can be improved. 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subjects	AGRICULTURE ANIMAL HUSBANDRY FISHING FORESTRY HUMAN NECESSITIES HUNTING PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES ORIMPLEMENTS, IN GENERAL SOIL WORKING IN AGRICULTURE OR FORESTRY TRAPPING
title	DESALINATION METHOD BY USING SLUDGE TO IMPROVE TOPSOIL OF SALINE AND ALKALINE LAND
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