尿基氮磷钾复合肥新工艺的研究
Research on a New Technology for Ureido - nitrogenous - phosphatic - potassium Compounded Fertilizer
腐殖酸氮磷钾复合肥对马铃薯产量、商品率及淀粉含量的影响
Effect of humic acid N-P-K compound fertilizer on yield , marketable tuber rate and starch content of potato
氮磷钾复合肥氮磷钾复合肥氮磷钾复合肥