Use: There are 17 kinds of nutrients necessary for biological growth, which are divided into large, medium and micro nutrients. Medium elements including calcium, magnesium, sulfur, trace elements including iron, copper, zinc. Manganese, molybdenum, boron, nickel and chlorine. With the improvement of modern agricultural production level and the extensive use of nitrogen, phosphorus and potassium fertilizers, the lack of trace elements in soil is becoming more and more serious.
The main role of trace elements are as follows:
1. Increase crop yield
2. Improve crop quality
3. Improve the utilization rate of chemical fertilizer
4. Reduce crop diseases and insect pests
5. Reduce environmental pollution
6. Improve economic efficiency
