Efficient water-saving irrigation method
A high-efficiency, water-volume technology, applied in the field of irrigation management, to improve irrigation efficiency, prevent runoff, and enhance controllability
Pending Publication Date: 2022-03-01
长沙红十岩科技有限公司
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Problems solved by technology
[0005] Aiming at the existing problems of irrigation water volume and irrigation time required for each crop growth period, a simple physics-based method based on the infiltration process is proposed, which helps to design effective irrigation methods, that is, to determine the appropriate irrigation speed and duration
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[0050] Exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be understood that the implementations shown and described in the drawings are only exemplary, intended to explain the principle and spirit of the present invention, rather than limit the scope of the present invention.
[0051] The embodiment of the present invention provides a high-efficiency irrigation method, a method for determining the irrigation rate and time, such as figure 1 As shown, including the following steps 1 to 5.
[0052] Step 1. Determination of dry soil moisture background and effective soil thickness
[0053] The cultivated land selected in the embodiment is a piece of wheat field in a certain field with an area of 1.3 mu. In the dry season (dry season, mid-November), 3 soils were randomly selected in the wheat field to measure the humidity using the FDR soil moisture sensor. Value S 0 is 11.07%; at the same tim...
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The invention relates to the technical field of irrigation management, in particular to a design of an irrigation rate and time determination method. According to the method, through actually measured background water content of a relatively dry field and fitting of a field soil irrigation water permeation velocity curve, a relationship among permeation velocity, permeation water quantity and time is established, and the actually required irrigation water quantity is determined by combining an irrigation target required by an irrigation period and the water content of the irrigation period; the relation between the maximum irrigation speed and the irrigation time is established through limitation of the soil infiltration speed and the infiltration water amount. According to the invention, precise control of field irrigation is realized, the irrigation efficiency is improved, the irrigation water is saved, runoff of the irrigation water can be effectively prevented, water pollution is avoided, the controllability of the field irrigation process is enhanced, and the management level of an irrigation area is improved.
Description
technical field [0001] The invention relates to the technical field of irrigation management, in particular to the design of a method for determining irrigation rate and time. Background technique [0002] At present, more than 40% of the world's food is produced through irrigated agriculture, and agricultural irrigation water accounts for 70% of the world's total fresh water resources. In most parts of China, especially in North China and Northwest China, there is a serious problem of insufficient water supply, and agricultural production is highly dependent on water resources. Water shortage and drought will seriously affect agricultural grain production, and directly affect the economic resources of agricultural farmers. become a serious social problem. Secondly, the agricultural water irrigation technology is relatively backward, and the commonly used irrigation methods are still in the stage of empirical irrigation, which will inevitably lead to excessive irrigation an...
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Patent Timeline
Login to View More IPC IPC(8): A01G25/00A01G25/16G06F17/11G01N15/08G01N33/24
CPCA01G25/00A01G25/167A01G25/16G06F17/11G01N15/0826G01N33/246
Inventor 谭祝珍
Owner 长沙红十岩科技有限公司