Formulas for liquid water-soluble fertilizers containing major elements

Reference for common formula combinations of liquid water-soluble fertilizers containing major elements: 1. A balanced nitrogen-phosphorus-potassium ratio (such as 20-20-20): Urea or ammonium nitrate is used as the nitrogen source, potassium dihydrogen phosphate serves as the main source of phosphorus and potassium, with an appropriate amount of EDTA added to chelate trace elements. 2. High-nitrogen type (such as 30-10-10): Urea, ammonium nitrate, or calcium nitrate are used as nitrogen sources; a small amount of potassium dihydrogen phosphate provides phosphorus and potassium, with appropriate addition of trace elements. 3. High-phosphorus type (such as 10-40-10): Potassium dihydrogen phosphate and ammonium polyphosphate are widely used as phosphorus sources, while urea or nitrates are added in appropriate amounts to provide nitrogen and potassium sources. 4. High-potassium type (such as 15-8-30): It is made primarily from potassium dihydrogen phosphate and potassium nitrate, with urea and other nitrogen sources added as supplements, and trace elements being added in appropriate amounts as needed. Common raw materials include: - Nitrogen source: urea, ammonium nitrate, calcium nitrate, potassium nitrate ； - Phosphorus source: potassium dihydrogen phosphate, ammonium polyphosphate ； - Potassium source: potassium nitrate, potassium sulfate ； - Trace elements: EDTA-chelated zinc, iron, manganese, copper, boron, molybdenum, etc. Generally, the total nutrient content of liquid fertilizers remains stable at around 30%-50%. If you have specific crop requirements or would like to discuss the details of a particular formula, we can continue our conversation. .

With a clear aqueous solution at 600 g/L or higher, are there any better solubilizers or other additives?