One kind of regulation on coastal saline soil fertilizer and preparation method for cotton

The present invention discloses a coastal saline soil regulation cotton special fertilizer, crop belongs to the technical field of special fertilizer. Which is prepared from the following starting components together: 300-450 parts of urea, 100 parts of DAP, 50-120 parts of potassium dihydrogen phosphate, potassium sulfate 100-200 parts, 50 to 150 parts of calcium humic acid, calcium and magnesium 1-50 parts fertilizer, 50 parts of magnesium sulfate, zinc sulfate, 10 parts, 10 parts by high-strength retaining agent. The present invention as compared with the prior art to add a water-soluble humic acid calcium salt suppression water retention; adding an appropriate amount of water-retaining agent, water retention regulation, increase fertilizer efficiency, increase fertilizer efficiency; essential trace elements is added in, enhanced stress tolerance capacity, and improve product quality.