Multifunctional pointing device for herbicide field effect tests in the field

Abstract

The invention belongs to the field of instruments for herbicide effect tests in the field, in particular to a multifunctional pointing device for the herbicide field effect tests in the field. The device comprises a square frame, support legs, a sign board, and a counting plate, wherein counting grids extend from the frame inwards in parallel, and the counting grid and the frame are in the same plane; the support legs can be inserted into soil and extend from four corners of the frame in a vertical downward direction, and an included angle between the length direction of the support legs and the length direction of the frame is 90 degrees; a sign rod extends from the support leg on the upper left corner along the right vertical upward direction of the frame, the sign rod is connected withthe frame by hinges, the sign board extends from the top of the sign rod in parallel, and an included angle between the length direction of the sign board and the length direction of the sign rod is 90 degrees; and a counting rod extends from the sign rod along the right vertical upward direction of the frame, the counting rod is connected with the frame by hinges, the counting plate extends fromthe top of the counting rod in parallel, and an included angle between the length direction of the counting plate and the length direction of the counting rod is 90 degrees. The device is simple and reliable in operation, and greatly improves the efficiency and accuracy of the drug effect tests.

Description

technical field [0001] The patent of the invention belongs to the field of instruments for field efficacy tests of pesticides, and specifically relates to a multifunctional fixed point device for field efficacy tests of herbicides. Background technique [0002] Historical background and current situation, objective problems and deficiencies [0003] There are more than 35,000 township agricultural technology departments and more than 3,100 county and city agricultural technology departments in the country. In order to verify the weeding effect of herbicides under the unique local ecological conditions, a large number of comparative efficacy tests are carried out in the field every year. It does not include R&D and development experiments conducted by scientific research institutes and production enterprises. In scientific experiments, determining a fixed point of 1 square meter or 1 square foot for 15 days, 30 days, 45 days, 60 days, 120 days of observation and counting com...

AI Technical Summary

Problems solved by technology

Most of the current experiments use the original method, that is, a temporary self-made fixed-point frame or directly measure a fixed-point position of 1 square meter or 1 square foot in the field, which requires the cooperation of 2-3 people and takes half a day; also in the counting of data, Statistically, at least 2-3 people are needed to complete the work, so that the already insufficient agricultural technicians spend a lot of time and energy on simple things

In addition to time-consuming and laborious, there are also problems of irregularity and inaccuracy. In addition to the influence of farming operations and bad weather, the fixed-point positions are often shifted and damaged during the test period. Especially in the later period as the crops grow, it is necessary to find the fixed-point positions. All become difficult, directly resulting in the lack of experimental data, errors, affecting the effect of herbicide experiments

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