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通过数年的研究,辽宁果树研究所有关人员研究出防治苹果枝干轮纹病的无公害杀菌剂,其为石硫合剂与硅石粉剂的复配制剂,目前已申报专利。该制剂对苹果枝干
After years of research, researchers at Liaoning Fruit Tree Research Institute have developed a pollution-free bactericide that prevents and controls apple stem rot disease. It is a compound preparation of lime sulfur powder and silica powder, and has now been declared a patent. The preparation of apple branches