含硫氮磷复合肥 23-21-0+4S Nps 23-21-0+4S 产品规格说明 TOTAL NUTRIENTS (N+P2O5): 44%MIN TOTAL NITROGEN (AS N): 23%MIN TOTAL PHOSPHATE (AS P2O5): 21%MIN SULFUR: 4%MIN MOISTURE: 2%MAX SIZE (1-4MM): 90%MIN Contact: fert@bestwinco.com 具体等级、规格及供货条件以双方确认的文件和合同为准。