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Cultivation waste water trickle irrigation method for wheat-corn crop rotation system in arid-semiarid regions

A breeding wastewater and crop rotation system technology, applied in the agricultural field, can solve the problems of low feces and wastewater treatment rate, high risk of surrounding water environment pollution, etc., and achieve the effect of scientific irrigation utilization

Inactive Publication Date: 2012-07-18
HENAN AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to economic, policy and technical reasons, the treatment rate of feces and wastewater in the livestock and poultry farming industry is currently low. Most of the large amounts of wastewater generated by livestock and poultry farms are discharged directly without treatment, and the risk of pollution to the surrounding water environment is greater than industrial, domestic sewage

Method used

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  • Cultivation waste water trickle irrigation method for wheat-corn crop rotation system in arid-semiarid regions
  • Cultivation waste water trickle irrigation method for wheat-corn crop rotation system in arid-semiarid regions
  • Cultivation waste water trickle irrigation method for wheat-corn crop rotation system in arid-semiarid regions

Examples

Experimental program
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Effect test

Embodiment 1

[0018] Example 1 The farming wastewater drip irrigation scheme was implemented in Caiyuanma Village, Xuedian Town, Xinzheng City during 2009-2010 and 2010-2011 respectively, and the soil texture was sandy soil. The content of main nutrients in the aquaculture wastewater used: N 50mg / L, P 10mg / L.

[0019] (1) Wheat season:

[0020] Irrigate with bottom water once before sowing, and the irrigation quota is 30 tons / 667m 2 ; From mid-October to mid-November, irrigate once with overwintering water, and the irrigation quota is 30 tons / 667m 2 ;From mid-March to mid-April, water saving by irrigation and pulling, irrigated once every 5 days, a total of 6 times, each time 20 tons / 667m 2 , a total of 120 tons of water / 667m 2 ; In the first half of May, heading water was irrigated once every 4 days, a total of 4 times, each time 20 tons / 667m 2 , a total of 80 tons of water / 667m 2 ; In the second half of May, grouting water was applied every 4 days, 4 times in total, 20 tons / 667m each...

Embodiment 2

[0030] Embodiment 2: this cultivation waste water drip irrigation method was carried out in 2010-2011 in Ge Dazhang Village, Xuedian Town, Xinzheng City and Zhengzhou Airport District "North China Wheat-Corn Rotation Nutrition and Fertilization Scientific Observation and Experimental Station of the Ministry of Agriculture", The soil texture type is light loam. The content of main nutrients in the aquaculture wastewater used: N 50mg / L, P 10mg / L.

[0031] (1) Wheat season:

[0032] Irrigate 1 time of bottom water before sowing, and the irrigation quota is 25 tons / 667m 2 ; From mid-October to mid-November, the wintering water is irrigated once, and the irrigation quota is 25 tons / 667m 2 ;From mid-March to mid-April, water saving by irrigation and pulling, irrigated once every 6 days, 5 times in total, 20 tons / 667m each time 2 , a total of 100 tons of water / 667m 2 ; In the first half of May, heading water was irrigated once every 4 days, a total of 4 times, each time 20 tons / 6...

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Abstract

The invention relates to a cultivation waste water trickle irrigation method for a wheat-corn crop rotation system in arid-semiarid regions. The method adopts cultivation waste water undergoing standard-reaching treatment, fully utilizes the advantages of a farmland trickle irrigation system, determines maximum farmland irrigation amount and reasonable irrigation frequency of the cultivation waste water for wheat and corns, and forms a water-fertilizer integrated staple-crop cultivation waste water irrigation system having ecological characteristics of the northern arid-semiarid regions on the premises of guaranteeing crop yield, quality and environmental safety. On the condition that the crops are high-yield, the method enables the cultivation-industry waste water to be effectively utilized, can reduce application amount of chemical nitrogenous fertilizer and further reduces surface source pollution.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a drip irrigation method for aquaculture wastewater in a wheat-corn rotation system in arid-semi-arid regions. Background technique [0002] In order to increase food production, the amount of chemical fertilizers used in the Huaihe River Basin has increased from 4.95 million tons in 1990 to 7.02 million tons at present, with an average amount of about 500 kg per hectare. One-time application makes the effective utilization rate only about 30% to 35% on average. Excess chemical fertilizers cause a lot of non-point source pollution. These pollutants not only enter surface water bodies directly with surface runoff, pollute rivers and lakes, And it seeps into the ground, polluting the soil and groundwater. The polluted groundwater is eventually discharged to surface water bodies, which intensifies the pollution of rivers and lakes. [0003] Animal husbandry is one of the imp...

Claims

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Application Information

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IPC IPC(8): A01C21/00
Inventor 刘红恩刘世亮杨喜田王文亮汪强韩燕来王代长
Owner HENAN AGRICULTURAL UNIVERSITY
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