Method and system for monitoring soil salinity in facility

A technology of soil moisture and salinity, which is applied in soil material testing, material inspection products, etc., can solve the problems of high sensor prices, inability to directly reflect changes in soil salinity, time-consuming and labor-intensive problems, and achieve the goal of saving human resources and achieving sustainable development Effect

CN109813865AActive Publication Date: 2019-05-28BEIJING RES CENT OF INTELLIGENT EQUIP FOR AGRI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2019-05-28

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Abstract

The embodiment of the invention provides a method and system for monitoring soil salinity in a facility. Based on the soil water content data of a root zone of a facility crop and the meteorological data of a canopy of a meteorological data sensing facility crop, and simulation estimation is conducted on the soil salinity of the root zone of the facility crop by a numerical method. Compared with atraditional soil salt determination method, the real-time monitoring of the soil salinity in the root zone of the crop is achieved, which saves a human resource cost and the capital cost of substratesalt measuring instruments and consumables. The method can be used for monitoring the dynamics of soil salinity changes in the root zone of the facility crop, adopt salinity control measures in timeto avoid the impact of salt damage on the facility crop, and provide a technical support for the high-quality and high-efficiency output of the facility vegetable crop. The method can achieve the real-time monitoring of the dynamic process of the soil salinity changes in the facility vegetable root zone, and provide support for formulating a scientific and rational regulation strategy of the soilroot layer salinity of the facility crop and achieving the sustainable development of facility vegetable production.
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Description

technical field

[0001] Embodiments of the present invention relate to the technical field of facility soil environment monitoring, and more specifically, to a method and system for monitoring facility soil salinity. Background technique

[0002] Facility vegetable cultivation gets rid of the restriction of natural environment on vegetable production, and uses engineering technology to improve or create an environment suitable for the growth of vegetable crops in a local area, so as to obtain higher yield, quality and economic benefits, which belongs to a kind of high-efficiency agriculture. Compared with the traditional field vegetable cultivation, the environment in the facility is relatively closed, and it is in a state of high temperature and high humidity for a long time, and the water demand of the crops in the facility is relatively large. The water brought into the soil of the facility through irrigation will be lost to the air under the action of crop evapotranspirat...

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Embodiment Construction

[0045]In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0046] Due to the influence of various factors such as soil water content, soil salinity, and soil organic matter, soil conductivity sensors based on TDR and FDR technologies cannot directly reflect changes in soil salinity. Although a few soil salinity sensors based on graphite electrodes or capacitance technology can theoretically realize real-ti...