Underground irrigation suitable test community determining method

Abstract

The invention discloses an underground irrigation suitable test community determining method, and relates to the technical field of agricultural water-soil engineering. The method comprises the stepsof preparation, specifically, a test area is selected, the test area is ridged up and irrigated with water; measuring, specifically, the test area is divided into a plurality of basic units, and the soil moisture rate is measured by sampling respectively; sorting, specifically, the adjacent basic units are combined according to the spatial position of the test area, and the corresponding soil moisture rate and the soil moisture rate variable coefficient are calculated; and result obtaining, specifically, a first equation is fitted on the treatment area and the corresponding soil moisture ratevariable coefficient, a second equation is fitted on the basic units and the corresponding soil moisture rate variable coefficient point of a combined maximum treatment area, a tangent line of the second equation tangent to the first equation is obtained, and the suitable treatment area is obtained. The test precision requirement can be met by using the method to determine the test community area,meanwhile, unnecessary labor and financial investment can be reduced, and the method has the crucial meaning on the standardized popularization and data containment of future irrigation tests.

Description

technical field [0001] The invention belongs to the technical field of agricultural water and soil engineering, and in particular relates to a method for determining a suitable experimental plot for ground irrigation. Background technique [0002] In the field of agricultural water and soil, in order to solve the problems in the actual production of field crops, it is a common practice in scientific research to adopt plot experiments, that is, firstly, it is necessary to divide the experimental plots, and the area, shape and repetition times of the experimental plots determine whether the test results are representative. basis of sex. [0003] Under surface irrigation conditions, the spatial variability of soil moisture is severe, coupled with the influence of crops, soil texture, and micro-climate heterogeneity, which has implications for plot layout, soil and crop moisture monitoring, and water consumption measurement at different spatial scales in irrigation experiments. ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for determining suitable test plots for ground irrigation, which can improve the problems of large differences in test plot specifications under existing ground irrigation conditions, and poor representativeness and comparability of test results, which is conducive to the standardization of irrigation tests. Extension and the development of agricultural data informatization

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