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通过鉴定的“北方土壤供钾能力及钾肥高效施用技术研究”成果,为北方土壤钾素管理提供了科学依据。专家认为,成果总体达到国际先进水平,建议加快推广 该成果是中国和加拿大政府间合作项目。由中国农科院土肥所等9个科研单位在我国北方13省(市、自治区)6年多联合攻关完成。成果的主要内容是:首次应用地理信息系统和相应的软件,研制建成了“中国北方土壤钾素地理信息系统”并绘制出“北方土壤速效钾含量图”,可直接用于指导北方的施肥管理:发现了北方土壤供钾能力自西向东明显降低,而对非源钾的固定能力则由东向西逐渐增加的特
Through the appraisal of “North soil potassium supply capacity and efficient application of potash technology” results, for the northern soil potassium management provides a scientific basis. Experts believe that the overall achievement of the international advanced level, it is recommended to accelerate the promotion of the outcome of the Chinese and Canadian government cooperation projects. By the Chinese Academy of Agricultural Sciences and other nine soil and fertilizer research institutes in northern China 13 provinces (municipalities and autonomous regions) for more than 6 years to complete the joint research. The main contents of the results are as follows: The first application of geographic information system and the corresponding software, developed and completed the “Northern China soil potassium geographic information system” and draw “Northern soil available potassium map”, can be used directly to guide the north fertilization management : It was found that the ability of potassium supply in the northern soil decreased significantly from west to east, while that of non-source potassium increased gradually from east to west