Study on the Relationship between Soil Nutrients and the Corn Yield Based on Grey System Theory

Abstract:

Take the test zone 110 sampling plots of soil nutrient content as the research data, to study the correlation between the soil nutrient content and the corn yield. It used the grey system theory to analysis the correlation between the content of soil nutrient, and established GM (1, N) prediction model. Soil nutrient correlation degree analysis showed that the correlation coefficient of available phosphorus and available potassium were 0.4742, 0.4492, it has a significant effect on the corn yield, the average prediction error of the GM (1, N) model was 7.38%. The model reflected the relationship between soil nutrient content and the corn yield well; it can be used to predict the yield test area.

• Periodical: Applied Mechanics and Materials (Volume 733)
• Pages: 391-394
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.733.391
• Online since: February 2015
• Authors: Xing Mei Xu, Li Ying Cao, Jing Zhou
• Keywords: Corn Yield, GM(1,N)Model, Grey System Theory, Soil Nutrients

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