Meshed field crop base fertilizer application effect evaluation model

An evaluation model and technology for field crops, applied in fertilization devices, fertilization methods, applications, etc., can solve the problems of poor evaluation accuracy, affecting crop growth, reducing crop yield, etc., to improve yield, ensure optimal nutrition, and avoid lack of nutrients. The effect of long-term slowdown and over-feeding lodging

Inactive Publication Date: 2021-09-17
哈尔滨航天恒星数据系统科技有限公司
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Problems solved by technology

[0003] At present, the commonly used evaluation method of basal fertilizer application effect is crop growth NDVI value analysis method, which is a method of extracting NDVI value of leaves during crop growth, analyzing crop growth status, and then reflecting the effect of basal fertilizer application. A hysteresis evaluation method

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  • Meshed field crop base fertilizer application effect evaluation model
  • Meshed field crop base fertilizer application effect evaluation model
  • Meshed field crop base fertilizer application effect evaluation model

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Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0026] Combine below Figures 1 to 3 To illustrate this embodiment, a gridded field crop basal fertilizer fertilization effect evaluation model is composed of three parts: a soil testing fertilization model, a grid delineation model, and a fertilization effect evaluation model;

[0027] Firstly, through the soil nutrient content measurement model, fertilizer effect measurement model, and soil testing and fertilization mathematical modeling, the optimal standardized fertilization amount of the target plot is obtained; then, according to the nutrient content of the delineated block, the grid is carried out according to the grid delineation model Integrated calibration; finally, the actual fertilization amount in each designated area is evaluated through the fertilization effect evaluation model, and finally the fertilization effect evaluation is obtained, so as...

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Abstract

The invention relates to the field of intelligent agriculture, in particular to a meshed field crop base fertilizer application effect evaluation model which is composed of a soil testing and fertilization model, a mesh dividing model and a fertilization effect evaluation model, wherein the soil testing and fertilization model is a fertilizer preparation algorithm model of fertilizers such as nitrogen, phosphorus, potassium, medium trace elements and the like according to the fertilizer demand of crops, the fertilizer supply capacity of soil and the fertilizer effect on the basis of soil detection and field tests; the mesh dividing model is a land mesh model in which soil nutrient content is used as a parameter, and the mesh dividing model is used for performing mesh dividing on soil according to soil census, cultivated land fertility survey or local field test data; and the fertilization effect evaluation model is a model for performing grade evaluation on the final actual base fertilizer fertilization effect of the whole target plot by performing result comparison with the optimal fertilization amount provided by the soil testing and fertilization model in each mesh and taking the area proportion of each mesh as a weight.

Description

technical field [0001] The invention relates to the field of smart agriculture, more specifically, a gridded model for evaluating the fertilization effect of field crop basal fertilizer. Background technique [0002] my country is a large agricultural country, and the development of the agricultural industry is directly related to the development of the overall economy of our country. At present, in the process of agricultural planting and production, there are obvious problems such as unreasonable fertilization, abuse of chemical fertilizers, and backward fertilization technology. Damage to agricultural land, pollution of the farmland environment, and hidden dangers of food security have also seriously affected the stability of agricultural production. According to different stages, fertilization methods can be divided into two types: base fertilizer and top dressing. Among them, base fertilizer mainly supplies the nutrients needed by plants throughout the growth period, cre...

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Application Information

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IPC IPC(8): A01C21/00
CPCA01C21/005
Inventor 沈洋张朋永侯瑛男褚超陈洁
Owner 哈尔滨航天恒星数据系统科技有限公司
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