No matter in the research of plant physiology or environmental detection, the use of chlorophyll meter and other agricultural instruments has become more and more widespread, and the role of the instrument has become more and more obvious. For example, the use of chlorophyll meter to measure the nitrogen nutrition level of plants is fast, simple, and non-destructive. This is unmatched by traditional detection methods. For the development of precision agriculture, the application of chlorophyll meter and other testing instruments has Important promotion.
Nitrogen is the most obvious nutrient element that affects the growth, yield and quality of crops. If the content of nitrogen in the soil is too low, only timely nitrogen supplement is needed to ensure the healthy growth of crops and increase the yield and quality of crops. In the past, due to the lack of corresponding detection technologies, farmers often found it difficult to determine the best time to top-dressing. This can only be judged based on experience. The results of judgments are often inaccurate, leading to the large-scale use of nitrogen fertilizers. Pollution caused by the environment, but also increased the pests and diseases of crops, in order to solve this problem, modern agriculture began to use the chlorophyll meter to guide work to determine the best time to topdressing.
The key to healthy fertilization is to ensure a balance between supply and demand between the crop and the soil. If it is not balanced, either the agricultural environment will cause damage or the soil will be graded, and the quality of the crops will be difficult to guarantee, and these will contribute to the sustainable development of agriculture. All have obvious limitations. Therefore, the most important purpose of using chlorophyll meter for monitoring is to achieve on-demand fertilization, determine the best time for topdressing by technical means, and then increase the utilization of nitrogen fertilizer, which is the most important for the implementation of precise nitrogen fertilizer management. The way. This not only can effectively reduce the amount of nitrogen fertilizer applied in the field, reduce the cost of agricultural production, but also can promote plant growth, increase the yield and quality of crops, and the benefits of agricultural production have been significantly increased.
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