复合肥 10-20-10+6S NPK 10-20-10+6S 产品规格说明 TOTAL NUTRIENTS (N+P2O5+K2O): 40%MIN TOTAL NITROGEN (AS N): 10%MIN TOTAL PHOSPHATE (AS P2O5): 20%MIN TOTAL POTASSIUM (AS K2O): 10%MIN SULFUR: 6%MIN MOISTURE: 2%MAX SIZE (2-4.75MM): 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。