56% content of the preparations, for example: 1. Per ton of stored grain or goods to 8; 2 to 5 per cubic meter store stack or goods; 1-4 slices of per cubic meter of fumigation space. (2) After steaming, opened the account screen or plastic film to open the doors, windows or ventilation gate, the use of natural or mechanical ventilation, full bulk gas, drain the gas. (3) storage time, with 5% to 10% silver nitrate solution impregnated strip test gas, before they join the free phosphine gas. Fumigation time, as the temperature and humidity below 5 °C, and should not be fumigated; 5 °C ~ 9 °C for at least 14 days; 10 °C ~ 16 °C no less than seven days; 16 ° C ~ 25 ° C of not less than four days ; 25 ° C or more at least three days. Smoked to kill voles, two of each rat holes.

aluminium phosphide 56%Tablet