A Quadratic Regression Analysis of the Effect of Three Levels of NPK Fertilizer on the Yield of Yell

来源 :美国计算数学期刊(英文) | 被引量 : 0次 | 上传用户:waterkkk
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Fertilizers are essential to modern agriculture;their overuse can have harmful effects on plants, crops and soil quality. Thus, the study seeks to investigate, if (actually) the trio of Nitrogen, Phosphorus and Potassium (NPK) contribute to the growth and
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