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location:Home>News>Industry Dynamic>Design and application of the layered soil moisture monitor for the smart agriculture

Design and application of the layered soil moisture monitor for the smart agriculture

time:2024-11-08 08:39:43  source:Weather Station viewed:18 time

Winter wheat and summer corn have their own requirements for soil moisture conditions. For winter wheat, a soil relative water content of 70% - 75% is ideal for sowing, which facilitates seed-soil contact and germination. Too dry or too wet conditions can affect germination and seedling growth. During the overwintering period, maintaining a soil relative water content of 60% - 70% can buffer against low-temperature damage. From the tillering to jointing stage, a soil relative water content of 70% - 80% can promote tillering and other growth, and water scarcity can inhibit development. During the booting to milking stage, a water content of 75% - 85% ensures photosynthesis and full grain, and water scarcity can reduce yield and quality.

For summer corn, a soil relative water content of 65% - 75% is conducive to seed germination and seedling growth, and irrigation may be necessary to create suitable soil moisture conditions. During the seedling stage, a soil relative water content of 60% - 70% is sufficient to promote root growth, and excessive drought can affect growth. From the jointing to tasseling stage, a soil relative water content of 70% - 80% ensures plant growth and tassel differentiation, and water scarcity at this stage can lead to "neck drought." During the milking stage, it is best to maintain a soil relative water content of 70% - 75% to ensure the transport of photosynthetic products, and water scarcity can result in insufficient grain filling, tip baldness, and shriveled grains, reducing yield.

There is now an instrument that can monitor soil moisture conditions in real-time. For example, the Tubular soil moisture detector FT-GTS, based on the principle of dielectric constant, involves burying a plastic tube with the main sensor placed inside. It emits high-frequency probing waves that penetrate the plastic tube to sense the soil environment. It observes at different levels, with a temperature observation point on the ground and a temperature and humidity measurement point every 10 centimeters underground, allowing for precise observation of the temperature and humidity of different soil layers and a comprehensive understanding of the vertical distribution of soil moisture. Moreover, the sensors are easy to remove and replace, have a high rate of maintenance convenience and recyclability, and the monitoring system platform can remotely view the latest data, historical data, units, warning upper and lower limits, status, and other content through a Web page. It also allows for parameter settings and viewing of alarm records.

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