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2008年6月5～6日,由中国腐植酸工业协会、河北省土肥总站、河北省新农村经济建设促进会、石家庄中科涂层肥料研究所联合举办的“河北省元氏县涂层缓释一次肥小麦现场观摩会”在石家庄召开。涂层缓释一次肥是应用涂层肥料专利技术,采用与氮、磷、钾肥料表面具有较强的
From June 5 to June 6, 2008, the “Yuanshi County Coating in Hebei Province” jointly organized by China Humic Acid Industry Association, Tucheng Terminal of Hebei Province, Hebei Province New Rural Economic Development Promotion Association and Shijiazhuang Zhongke Coating Fertilizer Research Institute Slow release of a wheat observation meeting "in Shijiazhuang. Coating a sustained release of fertilizer is the application of fertilizer patented technology, with nitrogen, phosphorus and potassium fertilizer has a strong surface