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本项研究对湖北省14种主要成土母质及其发育的土壤,按土属布点,共取表层土壤样3346个,剖面样305个和岩石样40个,分别测定锌、铜、锰、硼、铁含量取得数据21,967项,查明全省土壤锌、铜、锰、硼、铁含量,全量分别平均为83、27、596、80、35000ppm,有效量分别平均为0.65、1.11、29.7、0.33、37.1ppm,低于缺乏临界值的耕地共2460万亩;研究得出本省近代河流冲积物发育的土壤大多缺锌;酸性结晶岩发育的土壤缺硼;褐色粘土发育的土壤缺锰,红、黄壤缺铜,石灰土缺铁等。综上,编绘出土壤有效性锌、硼、铜、锰、铁缺素分布图,指导粮、棉、油、果等作物的微肥应用,常年施用面积800余万亩,效益显著。
In this study, 14 main soil parent materials and their developmental soils in Hubei Province were distributed according to soil types. A total of 3346 topsoil samples, 305 cross-section samples and 40 rock samples were obtained. The contents of zinc, copper, manganese, boron , Iron content obtained 21,967 items, to identify the soil zinc, copper, manganese, boron, iron content, the total amount of the average were 83,27,596,80,35000ppm, the effective amount was 0.65,1.11,29.7,0.33 , 37.1ppm, less than the critical value of a total of 2460 acres of arable land; the study found that modern province alluvial alluvial most of the development of zinc deficiency; acidic crystalline rock development of the lack of boron; brown clay soil development lack of manganese, red, Yellow soil lack of copper, lime soil iron deficiency. To sum up, we mapped out soil available zinc, boron, copper, manganese and iron deficiency distribution maps to guide the application of trace fertilizers on crops such as grain, cotton, oil and fruit. The perennial application area is more than 800 million mu and the benefits are significant.