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Observing cotton growth with a canopy chlorophyll meter to guide nitrogen use

Release time: 2020-01-09 Clicks: 117 Article source: Agricultural Instrument Network

Canopy chlorophyll measuring instrument is a kind of plant canopy chlorophyll measuring instrument developed by TOP Yunnong using modern optical technology. This canopy chlorophyll measuring instrument can quickly measure the greenness of plant canopy. , Staff can quickly understand the plant growth status, thereby guiding agricultural production work.

We know that plants exchange material and energy through photosynthesis. As the main pigment of photosynthesis, chlorophyll in leaves is an indicator of photosynthesis capacity, nitrogen content in leaves and the stage of crop development. Therefore, obtaining information about changes in chlorophyll has become a test crop An important means of growth. However, traditional chemical analysis methods are destructive, labor-intensive, long, and costly. So Top Yunong developed and designed this canopy chlorophyll measuring instrument.

The development of modern agriculture is inseparable from the analysis and research on the physiological characteristics of plants, especially the research between the growth of plants and the photosynthetic rate. Only in this way can scientific and effective measures be taken to improve the growth and yield of plants. In the research of plant physiological characteristics, the use of professional plant detection instruments such as canopy chlorophyll measuring instruments can improve the efficiency of plant research work, and the measured data results are more accurate, providing scientific reference for plant research. For example, use a canopy chlorophyll meter to observe the growth of cotton and guide the use of nitrogen fertilizer.

The demand for nutrients for cotton growth is still very large. Reasonable fertilization is the key to increasing cotton yield and income. After the buds of cotton are required for nutrients, the demand for nutrients starts to increase. When applying bud fertilizer, it is necessary to meet the needs of cotton plants and prevent Excessive fertilization caused the cotton plants to grow. So at this time, you can apply an appropriate amount of nitrogen fertilizer. What is the right amount? The canopy chlorophyll meter measures cotton chlorophyll content and guides the application of nitrogen fertilizer, which can reduce the use of 10% nitrogen fertilizer without reducing the yield of crops.

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