Environment-adaptive soil trace element fertilization device and fertilization method

Abstract

The invention relates to the field of agriculture, in particular to an environment-adaptive soil trace element fertilization device. The environment-adaptive soil trace element fertilization device ischaracterized by comprising an inert electrode, a trace element electrode and a power supply, wherein the inert electrode and the trace element electrode are buried in soil or immersed in irrigationwater, the inert electrode is connected with a negative electrode of the power supply, and the trace element electrode is connected with a positive electrode of the power supply to release trace element ions to the soil or the irrigation water; and the power supply is a solar device and / or a temperature difference energy device, the solar device is responsible for daytime power supply, and the temperature difference energy device is responsible for night power supply. The environment-adaptive soil trace element fertilization device has the beneficial effects that the environment-adaptive soiltrace element fertilization device is provided, trace elements are accurately applied to the soil, and accurate regulation of the trace elements in the day and night changes and the whole life cycle of plant growth are further realized.

Description

technical field [0001] The invention relates to the field of agriculture, in particular to an environment-adaptive soil trace element fertilization device. Background technique [0002] Trace elements refer to some elements that account for less than 0.01% of the total mass of organisms, and are necessary for plants but in small amounts. When these elements are lacking in the soil or cannot be used by plants, the plants will not grow well, and if they are too much, they will easily cause poisoning. At present, most scientists agree that there are 28 kinds of elements necessary for life. Among the 28 kinds of life elements, they can be divided into macro elements (or constant elements) and trace elements according to the content in the body. Trace elements account for about 0.03% of the total mass of the human body. Although the content of these trace elements in the body is small, they play an important role in the process of life activities. The trace elements in the human...

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Problems solved by technology

The traditional method of fertilizing trace elements is to add or spray compounds containing certain trace elements. The main disadvantages are: (1) It is impossible to precisely control the dosage (too much or too little is not good for plants, and crops require very little trace elements. , and the range between the suitable amount of trace elements for crops and the amount of poisoning is very narrow, so the application of micro-fertilizers must require an appropriate amount, otherwise excessive or uneven application will cause poisoning damage to varying degrees, not only can not increase production, but also cause production reduction) ; (2) The decomposition products of the compound will compact the soil (the physiological reaction of the plant makes the fertilizer pass through the plant to absorb the ion, and the remaining ion reacts in the solution, for example, after the application of ferric sulfate, the plant absorbs the iron ion and leaves behind More sulfate radicals react with water to produce sulfuric acid, which makes the solution acidic, and this fertilizer makes the soil acidic); (3) It cannot accurately meet the physiological cycle and growth period of plants, including changing the plant's ability to trace elements day and night Changes in demand, changes in the demand for trace elements in the life cycle of the plant growth period

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