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保护地土壤改良剂 (ＰＳＩＭ )系泰安市农科所承担市科技局重点资助项目 ,保护地土壤改良技术研究与开发课题重要研究内容之一。经两年试验研究 ,成功研制了对土壤理化性状、蔬菜产量品质、种植效益有显著效果的土壤改良剂ＰＳＩＭ1和ＰＳＩＭ4。2 0 0 2年 4月该项目通过专家组
Protected soil amendment (PSIM) is one of the important research contents of the research and development of soil improvement technology in protected areas. After two years of experimental research, soil improvers PSIM1 and PSIM4, which have significant effects on soil physical and chemical properties, yield and quality of vegetables, planting benefits, have been successfully developed. In April 2002, the project adopted the expert group