Items | Standard | Standard |
Appearance | White Powder /Granular | Water Soluble Powder |
K2O | 50%min | 52%min |
Cl | 1.5%max | 1.0%max |
Moisture | 1.0%max | 1.0%max |
PH | 3~5 | 3~5 |
S | 17%min | 18%min |
Water solubility | —— | 99.7%min |
Crops | Spraying time | Concentration |
rice | In the differentiation period of young ear, the initial stage, full heading to grain filling stage | 1% |
wheat | In the differentiation period of young ear, boot stage, until full heading time | 1% |
grape | In berry enlargement period | 0.5% |
melon vegetables | In the whole growth period, spray 3-5 times at intervals of 7-10 days | 0.5% |
root vegetables | In the whole growth period, spray 3-4 times at intervals of 7-10 days | 0.5%- 1% |
potato | 40-45 days before harvest, spray 2-3 times at intervals of 10 days | 1%-2% |
tobacco | Start to spray 10 days before squaring, keep for 2-3 times at intervals of 10 days | 1%-1.2% |