Method for laying orchard sensors

Abstract

The invention discloses a method for laying orchard sensors. The method comprises the steps: dividing an orchard into grids at intervals of 500m; subdividing the grids gradually, and merging the gridswith the same landform into a land parcel; obtaining the basic parameters of all land parcels according to the data of each landform sampling point; selecting the land parcel with the smallest coefficient of variation; obtaining the optimal sampling number n1 of the land parcels according to a Cochran optimal sampling formula; calculating the sampling number and slope ratio required by a land parcel ai according to the slopes of other land parcels; taking the weighted mean of the sampling numbers of all nutrients as a final sampling number, i.e., the number of sensors which are actually laidin the land. The method enables the orchard to be divided into n land parcels according to different landforms, so as to distribute different numbers of sensors. Specifically, the number of sensors ofother land parcels is deduced through the first land parcel. The method reduces the blindness of the precise fertilization of the orchard, improves the laying accuracy and scientificity of the sampling points of the orchard, achieves the optimization of the number under the certain precision, saves the cost, and facilitates the implementation.

Description

technical field [0001] The invention relates to the technical field of orchard soil monitoring, in particular to a method for laying orchard sensors. Background technique [0002] The rapid development of world agriculture in the second half of the 20th century was basically obtained under the conditions of a large amount of chemical fertilizers and pesticides and mineral energy, in addition to relying on the progress of biotechnology and the expansion of arable land and irrigated areas. However, the resulting ecological and environmental problems such as soil erosion, soil productivity decline, agricultural products and groundwater pollution, and water eutrophication have attracted widespread attention from the international community and promoted the emergence and development of sustainable agricultural development and precision agriculture. . The outstanding problems of my country's chemical fertilizer investment are unreasonable structure and low utilization rate. Low f...

AI Technical Summary

Problems solved by technology

The cost of deploying a large number of sampling points on a large scale is too high, and the large number of sampling points will result in insufficient accuracy to reflect the information of the orchard soil. The accuracy and the number of sensors cannot reach an optimal combination. Therefore, the minimum sampling at a certain accuracy is determined. point is particularly important

[0004] At present, there are relatively few layout methods for orchard sensor sampling points, and due to the large terrain and complex fields of orchards, soil nutrient variation is relatively large. The sampling obtained by traditional grid method and five-point sampling method often ignores the variation within the orchard. , making the measurement inaccurate

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