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Border irrigation-saving water and fertilizer integration method

A technology of water-fertilizer and border irrigation, which is applied in the field of water-saving irrigation and integrated management of water and fertilizer in border fields, and in the field of integration of water and fertilizer in border fields.

Active Publication Date: 2016-12-14
SHANDONG AGRICULTURAL UNIVERSITY
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  • Claims
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Problems solved by technology

This management mode is not only difficult to ensure the uniformity of fertilization, but also labor-intensive

Method used

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  • Border irrigation-saving water and fertilizer integration method
  • Border irrigation-saving water and fertilizer integration method
  • Border irrigation-saving water and fertilizer integration method

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Embodiment Construction

[0159] Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0160] This specific embodiment is only an explanation of the present invention, not a limitation of the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contribution as required, but as long as they are within the rights of the present invention All claims are protected by patent law.

[0161] The experiment was carried out on the silt soil block of Xuanzhuang Village, Daolang Town, Daiyue District, Shandong Province. The contents of clay, sand and silt in the 0-100cm soil layer of the test field were 20.1%, 19.1%, and 60.8%, respectively. The soil in the 0-20cm soil layer contains 14.23gkg of organic matter -1 , total nitrogen 0.72g kg -1 , containing 94.33, 42.84 and 112.77mg kg of alkaline nitrogen, available phosphorus and available potassium respectively -1...

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Abstract

The invention relates to a border irrigation-saving water and fertilizer integration method. The method comprises a border irrigation-saving method and a border water and fertilizer integration method which are implemented in a combined manner; the border irrigation-saving method refers to determining the best border supplementary irrigation time according to demands of crops for water in the yield formation process, and further the soil water content statuses of main root layers of the crops in different growth stages and sensitive degrees of the main root layers of the crops for soil moisture deficits; the border water and fertilizer integration method refers to dressing the other part of fertilizers with water in key growth stages of crop growth based on applying a part of the fertilizers at the bottom parts according to nutrient requirement rules of the crops in the yield formation process and coupling relationships of the nutrient requirement rules and water demands. By adopting the border irrigation-saving water and fertilizer integration method disclosed by the invention, nutrient demands and supplies of the crop root layers are coupled in space and number.

Description

technical field [0001] The invention belongs to the technical field of water and fertilizer integration, and relates to a method for integrating water and fertilizer in border fields, in particular to a technology for water-saving irrigation and integrated management of water and fertilizer in border fields, which is suitable for application to field crops such as wheat and corn. technical background [0002] my country's per capita water resources are about 2200m 3 At present, 16 provinces (autonomous regions and municipalities) have per capita water resources (excluding transit water) below the severe water shortage line, and 6 provinces and regions (Ningxia, Hebei, Shandong, Henan, Shanxi, Jiangsu) have per capita water resources Volume below 500m 3 . It is predicted that when my country's population increases to 1.6 billion in 2030, the per capita water resources will drop to 1750m 3 . Especially in northern China (such as North China, etc.), the number of water reso...

Claims

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Application Information

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IPC IPC(8): A01C21/00
CPCA01C21/007
Inventor 王东赵阳
Owner SHANDONG AGRICULTURAL UNIVERSITY
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