Fertilizer and water regulation and control device with solar photovoltaic power generation supplying power for chemical sensor

Abstract

The invention relates to a fertilizer and water regulation and control device with solar photovoltaic power generation supplying power for a chemical sensor, belonging to the technical field of new energy Internet of things. Sunlight irradiates a solar battery installed on the top end of a photovoltaic chemical sensor inserted link to generate current, and current is supplied to the chemical sensor through a conductor wire and a controller. The lower part of the chemical sensor is soaked in the water layer of a rice field for sensing the concentration changes after nitrogen fertilizer and phosphorus fertilizer are applied to the rice field and converting the change of chemical amount into electric signals. A transmitting antenna installed on the chemical sensor transmits the electric signals into air, and after receiving the electric signals, a receiving antenna inputs the electric signals into a computer processor for processing. According to the concentrations of actually dissolved nitrogen fertilizer and phosphorus fertilizer in the water layer of the rice field and the growth development condition of rice plants, precise amounts of applied fertilizers of the nitrogen fertilizer and phosphorus fertilizer are displayed on a display, and a suggestion for applying fertilizer is printed and handed to rice field managerial personnel for implementation.

Description

technical field [0001] The invention relates to a fertilizer and water control device with solar photovoltaic power generation to supply power to chemical sensors, and belongs to the technical field of new energy Internet of Things applications. Background technique [0002] In the process of food production in many areas, excessive application of chemical fertilizers in farmland has caused environmental pollution and soil acidification. China uses 35% of the world's chemical fertilizers, of which nitrogen fertilizers account for 80% of the total chemical fertilizers, accounting for 1 / 3 of the world's total nitrogen fertilizers. The large amount of nitrogen fertilizer applied in grain fields seriously pollutes groundwater sources, causing eutrophication of lakes, rivers, and shallow sea ecosystems. In 2007 and 2008, cyanobacteria broke out in Taihu Lake in Wuxi due to eutrophication. In rural areas, only 38% of households use chemical fertilizers rationally, and a large amo...

AI Technical Summary

Problems solved by technology

In rural areas, only 38% of households use chemical fertilizers rationally, and a large amount of nitrogen fertilizers enter the natural environment, causing great pressure on environmental protection

Excessive application of chemical fertilizers in some farmlands will cause poor growth of crops, and in severe cases, crops will wither

[0003] Extensive application of phosphorus fertilizers can also cause soil physical and chemical properties to deteriorate

Calcium superphosphate contains a large amount of free acid. Long-term application of large amounts of phosphate fertilizers will cause soil acidification and leave harmful elements such as cadmium, lead, and fluorine contained in phosphate rocks in the soil, causing harm to humans and animals.

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