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Method of using domestic sewage for corn irrigation to improve soil fertility

A technology for domestic sewage and soil improvement, applied in the directions of botanical equipment and methods, applications, watering devices, etc., can solve the problems that sewage irrigation cannot be promoted, lack of systematic research, etc., and is conducive to effective production and increase corn yield. , the effect of improving fertility

Inactive Publication Date: 2013-01-30
兰州云式环境科技有限公司
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Problems solved by technology

There is a lack of systematic research on the use of domestic sewage for irrigation. Uncertainties in the utilization of sewage, the impact of sewage irrigation on soil, and the impact of sewage irrigation on plant growth have led to the inability to promote sewage irrigation.

Method used

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  • Method of using domestic sewage for corn irrigation to improve soil fertility
  • Method of using domestic sewage for corn irrigation to improve soil fertility
  • Method of using domestic sewage for corn irrigation to improve soil fertility

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Embodiment Construction

[0019] From 2009 to 2012, 50 mu of corn was planted in Xiaguanying area, Yuzhong County, Lanzhou City, and the corn was Shendan No. 16. The domestic sewage in Xiaguanying University Town was used as irrigation water, and the local well water was used as the irrigation of the comparative test field. use water. The area is located near Xiaguanying University City, with an average annual rainfall of 350 mm and evaporation of 1,450 mm. It belongs to a temperate arid continental climate. Local farmers basically adopt the planting mode of pumping underground well water for irrigation when farming, and use a lot of farmyard manure and chemical fertilizers as a means to increase production and income, select domestic sewage irrigation areas and well water irrigation areas with basically the same soil type and farming management level in this area to conduct field experiments to illustrate the long-term use of domestic sewage irrigation to improve soil and promote plant growth .

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Abstract

The invention discloses a method of using domestic sewage for corn irrigation to improve soil fertility. The method includes: detecting available nitrogen, rapidly-available phosphorus and organic content in domestic sewage and local irrigation water; in irrigation before seeding: using normal water mixed with domestic sewage to irrigate field soil, wherein the water content is 20%-30% per20cm-30cm; in seedling stage: using normal water mixed with domestic sewage to irrigate field soil, wherein the water content is 22.5%-31% per30cm-40cm; in elongation stage: using domestic sewage to irrigate field soil, wherein the water content is 23.5%-33% per30cm-40cm; in filling stage: using domestic sewage to irrigate field soil, wherein the water content is 25.5%-33% per30cm-40cm; and guaranteeing soil fertility in corn growth cycle and topdressing after seedling stage. Using the method can treat domestic sewage in college towns, save irrigation water, make effective use of water resources, effectively improve soil fertility, improve corn yield, reduce chemical fertilizer usage, increase both production and income for peasants, prevent soil salinization and benefit soil effective production. Moreover, the method has certain popularization value to environment protection.

Description

technical field [0001] The invention relates to the field of soil nutrient treatment and the field of crop yield increase, in particular to a method for improving soil nutrient content and increasing corn yield by using domestic sewage irrigation. Background technique [0002] The daily life of urban residents and the university towns around the city produce a large amount of domestic sewage, which is generally discharged directly or after simple treatment. The content of N, P and organic matter in domestic sewage is relatively high and the content of metal ions and other pollutants is very low, which is reasonable. Utilization can improve soil fertility, reduce the use of chemical fertilizers, reduce costs, and can promote plant growth, increase crop yields, and save water resources. There is a lack of systematic research on the use of domestic sewage for irrigation. Uncertainties in the utilization of sewage, the impact of sewage irrigation on soil, and the impact of sewag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01G25/00
CPCY02A40/22
Inventor 姜云超杨胜翔王丹璐於进王小娜刘琪琪
Owner 兰州云式环境科技有限公司
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