Portable Plant Nutrition Analyzer, Storage: 999 Sets of Data, Nitrogen Accuracy: ± 5%, Leaf Temperature Accuracy : ±1°C

Portable plant nutrient analyzer 

Instrument uses and significance: 

Plant nitrogen content, chlorophyll, and leaf temperature are important nutrient and physiological parameters for plant growth and are important parameters that reflect plant vital signs. It is also an important basis for plant fertilization and irrigation.

The nitrogen content directly responds to the crop's health, growth status, understanding of the plant's actual nitro requirement and lack of soil nitro, or excessive application of nitrogen fertilizer. It is widely used in nitrogen fertilizer management, herbicide application, Leaf senescence, environmental stress and other studies, chlorophyll meter in the process of agricultural cultivation has great significance. 
The chlorophyll content was determined as the SPAD value, which was calculated by comparing the ratio of the number of light transmitted by the blade at two wavelengths of 650 nm and 940 nm to determine the relative amount of chlorophyll present in the leaf (the transmittance coefficient in the two wavelength ranges was used to determine the leaf current The relative amount of chlorophyll), SPAD value is proportional to chlorophyll, so SPAD values ​​often indirectly represent chlorophyll values, which can be used to assess plant health and growth status. In agriculture, therefore, chlorophyll meter is often used to perform Chlorophyll content was measured to guide the amount of nitrogen fertilizer applied. Therefore, the chlorophyll meter was used to conduct nitrogen fertilization in the agricultural planting process, and in many plants, the resistance of the plant was judged. 
Leaf temperature is commonly used to indicate the temperature condition of a plant. All chemical reactions in plant leaves are affected by leaf temperature and are often used in the analysis of plant physiological activity. The difference between leaf temperature and temperature can indicate the lack of water or drought. Because when the water supply is sufficient, the plant transpiration is normal, and the transpiration and heat consumption can reduce the temperature of the plant. At this time, the leaf temperature is lower than the temperature. On the contrary, when the drought occurs, the plant body temperature rises and can be higher than the temperature at that time.

However, the instruments that can be used to quickly detect nitrogen at home and abroad are only chlorophyll meters. The SPAD value is tested. The plant nitrogen content can only be estimated based on the SPAD value. My company broke through the tradition and cooperated with Zhejiang University to develop the first plant-based rapid nutrient analyzer based on near infrared spectroscopy non-destructive testing method and data mining technology. The rapid non-destructive testing of the chlorophyll, leaf nitrogen content, and leaf temperature of the three nutrients and physiological growth information in the field is of great significance for agricultural research and production.

Portable plant nutrient analyzer 

Instrument features

1. The three parameters (chlorophyll, nitrogen, leaf temperature) can be displayed at the same time and can be saved, which facilitates the mapping of plant nutrient and other information distribution graphics and provides basis for accurate fertilization of plants. 
2. Rapid and non-destructive testing of plants in vivo, without damaging the crops and without affecting plant growth. 
3. Multi-parameter fast one-time measurement: The chlorophyll, nitrogen, and leaf temperature of the plant were measured at one time. 
4. Acquisition of test point positioning information: Through the built-in GPS module in the instrument, it is received by the serial port interrupt mode through NAME-83 protocol, and the received data is decoded into longitude, latitude, speed, time (clock and calendar, year and month). Time, minute, second and direction information are displayed and stored synchronously, and the time can be manually set. (The multi-function model is equipped with this function) 
5. Historical data viewing, three kinds of parameters are displayed at the same time. 
6. The color screen measurement results show that it is intuitive and clear with backlight function. 
7. The measurement data is easy to save and the historical data display is intuitive. 
8. Built-in rechargeable battery, easy to carry and use.

Portable plant nutrient analyzer 

Instrument parameter determination index: nitrogen, chlorophyll, leaf temperature nitrogen range: full
Nitrogen accuracy: ± 5%
Chlorophyll range: 0.0-99.9 SPAD
Chlorophyll precision: ± 2SPAD
Leaf temperature range: 0-90 °C
Leaf temperature accuracy : ±1°C
Storage: 999 sets of data