Testing method and testing device for fog-droplet deposition on basis of similarity of crop porosity

Abstract

The invention relates to a testing method for fog-droplet deposition on the basis of similarity of crop porosity. The method comprises the following steps: selecting a deposition testing area according to the forms of crop plant populations, on the basis of porosity measurement of leaves at different layers of population plants, abstracting population crop plants into a plurality of layers from high to low, and leading the porosity of the leaves at the abstracted and simplified layers and the actually-measured porosity of the leaves to be same by different arrangement and combination modes. In order to adapt to testing of the fog-droplet deposition characteristic of the leaves under different spraying modes, the leaves are abstracted into three perpendicular geometries with the same size according to the need. The invention also relates to a testing device for fog-droplet deposition on the basis of similarity of crop porosity. The testing device comprises a mechanical bracket, a plant abstract leaf array, a traveling chassis, a spraying system and a control unit. The testing method and the testing device have the advantages that testing of the fog-droplet deposition amount in a three-dimensional space of different crops in different growth forms and different spraying modes is realized, and simultaneously, the standardization of the testing process is easy to realize.

Description

technical field [0001] The invention relates to the technical field of plant protection machinery, in particular to a droplet deposition test method and test device based on crop porosity similarity, so as to be suitable for testing the droplet deposition amount under different crops, different growth forms and different spray modes. Background technique [0002] The uniformity of the deposition and distribution of the droplets on the target during the operation of the spray machine is one of the important indicators to measure the quality of the spray. Modern agronomy requires reasonable close planting to increase yield. Due to the formation of high canopy density canopy in the middle and late stages of close planting crop growth, the crops have dense branches and leaves. Choose which spray pattern is ideal. [0003] After searching the existing technical literature, it was found that the utility model patent "a space droplet deposition test device for tunnel spray", paten...

AI Technical Summary

Problems solved by technology

The utility model patent "A On-Site Detection Device for Aerial Spray Droplet Deposition" provides an on-site detection device for the on-site detection device of aviation spray droplet deposition with complete sample collection, high degree of automation and high detection efficiency; but the above-mentioned test device is only Tested in a single spray pattern, not suitable for other types of spray patterns

The utility model patent "a test device for the spatial distribution of fog volume of variable spray", patent application number 201120565057.8, provides a fog volume test device for variable spray, which uses a cover with a gap to move on the fog collection tank Test the amount of fog at different positions on the spray surface, but this test method only measures the amount of fog in the spray space, and cannot accurately test the actual deposition amount of the liquid medicine on the crop leaves

[0004] To sum up, the above-mentioned documents are only for the deposition amount test device under a specific spray mode or a specific crop. Due to the influence of different crops and growth characteristics, there are certain limitations in use, and the standardization of the droplet deposition amount test cannot be achieved. Therefore, there is an urgent need for a droplet deposition test method and its test device based on the similarity of crop porosity, so as to adapt to the test of droplet deposition under different crops, different growth forms and different spray patterns, and provide a test method for the deposition amount. Standardized methods are of great significance for the correct evaluation of the application effect of different spray patterns

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