The Factors that Influence the Fermentation of Organic Fertilizer
Potassium dihydrogen phosphate is a kind of binary compound fertilizer with high concentration of phosphorus and potassium. The pure product is white or grayish white crystal. It has little hygroscopicity, good physical properties, pH3-4 in aqueous solution and is easy to dissolve in water and expensive in price.
Potassium dihydrogen phosphate is suitable for seed soaking, seed dressing and topdressing. The seed soaking concentration was 0.2%, the time was 12 hours; Each 100 kg solution was soaked in 30 kg soya and 50 kg wheat. Seed dressing is usually with1% concentration to spray, and the same day the seed after dressing should be under the ground. The dosage of 50kg-75kg solution per 667m2 was 0.2- 0.5%, which was chosen to be sprayed on the surface of leaves in sunny afternoons. At jointing and booting stage, cotton was sprayed three times before and after flowering. The fruit trees were sprayed with 0.5% potassium dihydrogen phosphate solution during the period of fruit expansion to coloring, which had a good effect on improving the product quality.