SO4, the Australian potash producer owned by Czech billionaire Pavel Tykac, said it made its first commercial shipment ...

Generally these fertilizers are spread prior to planting therefore the SO4-S might be lost from sandy soils before the time of crop need.

Control was similar with sethoxydim plus crop oil and sethoxydim plus BCH 81508 S. Adding ( NH4)2 SO4 or UAN moderately improved control with sethoxydim in some experiments. Both ( NH4)2 SO4 and UAN ...