Test bed device and method for testing fertilizer pesticide injection and dispersion mechanism

Abstract

The invention discloses a test bed device and a method for testing a fertilizer pesticide injection and dispersion mechanism, belongs to the field of fertilizer pesticide injection and dispersion and solves the problems of an existing fertilizer pesticide injection and dispersion mechanism research. The device is composed of a test bed, a soil box, a soil groove, an injection part and a sampling part, wherein the soil box, the injection part and the sampling part are sequentially and fixedly arranged on the test bed respectively. The method comprises the following steps: firstly, treating test soil by litmus; then, judging the potential of hydrogen of soil according to colors of the litmus on different soil layers to determine the concentration of a fertilizer pesticide in the soil; then determining an isoconcentration curve to realize the quantitative analysis of fertilizer pesticide injection; and finally, estimating an injection and dispersion effect of the fertilizer pesticide according to an intrinsic dispersion model. The invention provides the test bed device and the method for testing the fertilizer pesticide injection and dispersion mechanism; firstly, the quantitative research is carried out on the inner injection and dispersion of the soil; a concentration contour line parameter is used for evaluating a dispersion effect.

Description

technical field [0001] The invention relates to the field of injection and diffusion of fertilizers, in particular to a test bench device and method for testing the mechanism of injection and diffusion of fertilizers. Background technique [0002] The soil fertilizer injection machine can directly inject the liquid medicine into the soil below the ground, directly targeting the parasitic pests and diseases in the soil. Moreover, the problem of volatilization of the liquid medicine in contact with air is reduced, and the effect of saving medicine is obvious. The current technology of the fertilizer test bench mainly includes the spray characteristic test bench, the solid fertilization seeding soil tank test bench, etc., which mainly solve the problems of the uniformity of the sprayed ground deposition and the amount of solid granular fertilizer. [0003] Existing test benches The current technologies mainly include spray characteristic test benches, solid-state fertilization...

AI Technical Summary

Problems solved by technology

However, the structure described by this technique does not allow precise and quantitative testing of the diffusion mechanism of the injection

At the same time, it is impossible to explore and study the law of diffusion in the time dimension, let alone obtain a mathematical model that can be further used for fertilizer injection and pesticide application based on the diffusion mechanism, and cannot provide conditions for basic theoretical research.

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