1、 Performance characteristics
1. Adopting microprocessor technology, digital circuits, programmed design, microcontroller control, touch buttons, and LCD display.
2. Dual use of AC and DC (in vehicle).
3. Built in thermal printer for storing and printing test results.
4. Using high brightness LED lights as the light source and silicon semiconductors as the signal receiving system, the lifespan can reach up to 100000 hours.
5. The cassette part adopts a dual light source mechanism design, which can achieve multi item detection.
6. The work stability is 6 times better than the national standard JJG179-90 index, and the repeatability reaches the grating spectrophotometer index.
7. Expert fertilization system software
By inputting soil testing data, the system automatically calculates the relationship between crop fertilizer demand and soil supply based on the established fertilization model algorithm, providing users with fertilization formulas and plans, and providing targeted supplementary nutrients for crops, thereby improving fertilizer utilization efficiency and crop yield; The system integrates three common types of crops, namely field crops (winter wheat, spring wheat, corn, soybeans, rice, etc.), vegetable crops (cucumbers, radishes, carrots, tomatoes, etc.), and fruit trees (persimmons, apples, oranges, grapes, peaches, etc.), and can customize crop types according to customer needs.
2、 Test items
1. Soil nutrients: alkali hydrolyzed nitrogen, ammonium nitrogen, available phosphorus, available potassium, moisture content (combustion method), pH value (test paper method), etc.
2. Trace elements such as calcium, magnesium, silicon, sulfur, boron, and chlorine in soil.
3. Fertilizer nutrients: total nitrogen, total phosphorus, and total potassium.
3、 Technical parameters
1. Range and resolution: 0.001~9999
2. Stability: Drift less than 0.003 within three minutes
