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锰是植物重要的微量元素之一.美国、印度、苏联等国学者对土壤有效锰含量均作了大量的研究.山东省对土壤含锰量的研究尚少.青岛市农科所认为该市少量土壤缺锰;济南市农科所则认为褐土是山东省主要的缺锰土类,但均限于测试范围和样品的代表性,难以对全省土壤供锰状况作出全面评价.为此,我们于1983～1986年结合全省土壤普查,将各市(地)土样采用国内常作为判断土壤有效锰含量的DTPA
Manganese is one of the important trace elements in plants.American, Indian, Soviet and other scholars made a great deal of researches on the effective manganese content of soils.The research of soil manganese content in Shandong is still scarce.Qingdao Agricultural Science Institute thinks that the city A small amount of soil is deficient in manganese, while Jinan Agricultural Institute believes that cinnamon is the main manganese-deficient soil in Shandong Province, but it is limited to the scope of the test and the representativeness of the sample, so it is difficult to make a comprehensive evaluation on the status of manganese supply to the soil in the province, We from 1983 to 1986 combined with the province soil census, the city (earth) soil samples used to determine the soil available manganese content of DTPA