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Control method and control system for automatic irrigation of interplanted crops

An automatic irrigation and control method technology, applied in the field of farmland irrigation, can solve the problems of poor representation of soil water content, inconvenient mechanical farming operations, and high cost

Inactive Publication Date: 2016-08-17
NINGXIA HUI AUTONOMOUS REGION TANGLAI DRAINAGE MANAGEMENT
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is: the existing monitoring of soil water content by deploying soil water content sensors in the field is poorly representative, expensive and inaccurate so that precise irrigation decisions cannot be made, and it brings inconvenience to mechanical farming operations

Method used

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  • Control method and control system for automatic irrigation of interplanted crops
  • Control method and control system for automatic irrigation of interplanted crops
  • Control method and control system for automatic irrigation of interplanted crops

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Embodiment Construction

[0059] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0060] figure 1 A schematic diagram showing an automatic irrigation control method for interplanted crops according to an embodiment of the present invention. Such as figure 1 Shown, the control method of automatic irrigation of this interplanting crop comprises:

[0061] S11: Obtain the depth of the soil plan wet layer, and divide the soil layer according to the depth of the soil plan wet layer;

[0062] S12: Obtain the soil moisture content of each soil layer at different times according to the soil water conservancy characteristic parameters, the initial moisture content of each soil layer and the compound crop coefficient of interplanting crops;

[0063] S13: Obtain the composite root system distribution index of the interplanted crop according to the area of ​​the interplanted crop;

[0064] S14: Obtain the irrigation decision-making judgment fa...

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Abstract

The invention relates to a control method for automatic irrigation of interplanted crops. The method comprises the steps of acquiring depth of a soil designed moisting layer, and performing soil dividing according to the depth of soil designed moisting layer; acquiring soil water contents of each soil layer at different time points according to water characteristic parameters of the soil, initial water content of each soil layer and a composite crop coefficient of the interplanted crops; acquiring a composite root system distribution coefficient of the interplanted crops according to the area of the interplanted crops; acquiring an irrigation decision determination factor of a to-be-irrigated area according to the soil water content and the root system distribution coefficient of each soil layer, starting irrigation of the interplanted crops when the irrigation decision determination factor is smaller than a first threshold, and stopping irrigation when the irrigation amount reaches a target irrigation amount. The control method can be used for performing automatic irrigation on the interplanted crops based on accurate acquiring for soil water conteint information in an interplant mode. The control method has advantages of ensuring high yield of the crops and realizing water content utilization efficiency maximization.

Description

technical field [0001] The invention relates to the technical field of farmland irrigation, in particular to a control method and system for automatic irrigation of interplanted crops. Background technique [0002] Intercropping mode is a planting mode in which two or more crops are planted in the same field according to different periods. Compared with the single crop planting mode, intercropping can not only make full use of light and heat resources in stages, but more importantly, this planting mode can prolong the growth time of subsequent crops, increase the multiple cropping index, and thus increase the total annual output. In addition, the intercropping planting mode can also improve the excessive concentration of water demand in the critical growth period of the single planting mode, and rationally allocate the demand for water resources in terms of time. This planting mode is especially suitable for areas with better light and heat conditions in the Northwest. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/02A01G25/00A01G25/16
CPCG06Q10/04A01G25/00A01G25/16G06Q50/02
Inventor 杨志吴晓峰温江丽李银坤李锋马文涛薛里图王利春
Owner NINGXIA HUI AUTONOMOUS REGION TANGLAI DRAINAGE MANAGEMENT
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