Compound fertilizer refers to at least two of the three nutrients of nitrogen, phosphorus, and potassium. It is a chemical fertilizer made by chemical methods or physical methods and blending methods.
Nitrogen, phosphorus, and potassium nutrient content labeling method: nitrogen (N) phosphorus (P) potassium (K).
Compound fertilizer types:
1. The two-element nutrient is called binary compound fertilizer, such as monoammonium phosphate, diammonium phosphate (nitrogen phosphorus two element fertilizer), potassium nitrate, nitrogen potassium top dressing (nitrogen potassium two element fertilizer) potassium dihydrogen phosphate (phosphorous potassium) Two-element fertilizer).
2. The three elements of nitrogen, phosphorus and potassium are called ternary compound fertilizer.
3. Multi-element compound fertilizer: In addition to the main nutrients of nitrogen, phosphorus, and potassium, some compound fertilizers also contain calcium, magnesium, sulfur, boron, molybdenum and other trace elements.
4. Organic-inorganic compound fertilizer: Some compound fertilizers are added with organic matter, which is called organic-inorganic compound fertilizer.
5. Compound microbial fertilizer: compound microbial fertilizer is added with microbial bacteria.
6. Functional compound fertilizer: Add some additives to compound fertilizer, such as water-retaining agent, drought-resistant agent, etc. In addition to the nitrogen, phosphorus and potassium nutrients of compound fertilizer, it also has other functions such as water retention, fertilizer retention, and drought resistance. Compound fertilizer is called multifunctional compound fertilizer.
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Post time: Jul-15-2021