STUDY ON SOIL NUTRIENT MANAGEMENT AND FERTILIZATION MODEL IN NINGXIA COUNTY TERRITORY WITH GIS

文献类型： 外文期刊

第一作者： Liu, Libo

作者： Liu, Libo;Zhou, Guomin

作者机构：

关键词： GIS;Soil nutrient;Fertilizer model;Goal output;Fertilizer parameter

期刊名称：COMPUTER AND COMPUTING TECHNOLOGIES IN AGRICULTURE II, VOL 1

ISSN： 1571-5736

年卷期： 2009 年 293 卷

页码：

收录情况： SCI

摘要： By adopting the GIS technology, this thesis tries to collect and recognize the existing pedological map. the soil nutrient graphic document and other related documents data of Ningxia. And with the classification and filtration to the material, the spatial databases and the attribute database call be established to combine the county territory soil nutrient data and the geography graph together to make the Uninteresting form data visualized. Based oil the soil nutrient database, the mathematical model is established by means of the design of the regression orthogonal combination. And Through file mathematical model optimization, the quantity of nitrophoskas which is employed at the maximum production rate as well as at the lowest call be obtained. With these, the paper proposes a model which call dispose, judge and analyze all the factors related to the fertilization to achieve the concrete formula and the amount of commonly Used fat and the special-purpose compound fat. Therefore, the data analysis and the auxiliary decision-making enormously facilitate, and the automatization and the rationalization of all kind of crop's fertilization scheme in Ningxia can be realized.

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