Nitrogen is a necessary nutrient for rice growth, and it has the most obvious effect on rice growth, yield, and quality. However, if it is used improperly, it will also result in a large loss of nitrogen fertilizer and serious environmental pollution, resulting in the occurrence of rice pests and diseases. Therefore, the application of modern nitrogen fertilizer should pay attention to the balanced ratio. Using chlorophyll meter to monitor the nitrogen nutrition level of rice is an effective way and key to improve nitrogen fertilizer utilization efficiency in paddy field system.
The purpose of the chlorophyll meter in rice detection is to monitor the plant nitrogen nutrition level quickly and simply, accurately and non-destructively, and provide the information needed for top dressing in time, through coordination between the crop and the soil. Supply and demand balance, on-demand fertilization, to achieve a more precise application of nitrogen fertilizer, improve nitrogen fertilizer utilization, thereby reducing the amount of nitrogen fertilizer, while obtaining higher yields.
Generally speaking, the soil nitrogen status in paddy field changes with the environment and time and space, so it is very difficult to determine the nitrogen supply capacity in paddy soil. The nitrogen needed for plant growth is mainly derived from the soil. Therefore, timely monitoring of the plant nitrogen status using the chlorophyll meter can determine the abundance of soil nitrogen supply, which can be used as a guide for nitrogen top dressing management. The study also showed that choosing the right chlorophyll meter to guide timely fertilizer compared with other methods of nitrogen fertilizer management can significantly reduce the amount of nitrogen fertilizer, nitrogen fertilizer utilization efficiency in rice fields has been significantly improved, and its output level can reach or exceed other nitrogen fertilizers Managed production levels.
It can be seen that the use of chlorophyll meter to monitor the level of nitrogen in rice is of great significance for the quality cultivation of modern rice. The planting area of ​​rice in China is very wide. Therefore, the application market of chlorophyll meter is very extensive. With the application of scientific instruments such as chlorophyll meter, it is possible to change the backward appearance of traditional rice cultivation and achieve safer and more efficient rice cultivation.
The purpose of the chlorophyll meter in rice detection is to monitor the plant nitrogen nutrition level quickly and simply, accurately and non-destructively, and provide the information needed for top dressing in time, through coordination between the crop and the soil. Supply and demand balance, on-demand fertilization, to achieve a more precise application of nitrogen fertilizer, improve nitrogen fertilizer utilization, thereby reducing the amount of nitrogen fertilizer, while obtaining higher yields.
Generally speaking, the soil nitrogen status in paddy field changes with the environment and time and space, so it is very difficult to determine the nitrogen supply capacity in paddy soil. The nitrogen needed for plant growth is mainly derived from the soil. Therefore, timely monitoring of the plant nitrogen status using the chlorophyll meter can determine the abundance of soil nitrogen supply, which can be used as a guide for nitrogen top dressing management. The study also showed that choosing the right chlorophyll meter to guide timely fertilizer compared with other methods of nitrogen fertilizer management can significantly reduce the amount of nitrogen fertilizer, nitrogen fertilizer utilization efficiency in rice fields has been significantly improved, and its output level can reach or exceed other nitrogen fertilizers Managed production levels.
It can be seen that the use of chlorophyll meter to monitor the level of nitrogen in rice is of great significance for the quality cultivation of modern rice. The planting area of ​​rice in China is very wide. Therefore, the application market of chlorophyll meter is very extensive. With the application of scientific instruments such as chlorophyll meter, it is possible to change the backward appearance of traditional rice cultivation and achieve safer and more efficient rice cultivation.
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