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Table 2.

Correlation coefficients and the degree of dependence of the yield and protein content

Characteristics Correlation coefficient Degree of dependence Regression equation
Yield – protein Without fertilizers -0.40 average, reverse y = -0.58x+14.8
Presowing seed treatment with microfertilizers -0.50 average, reverse y = -1.62x+12.4
Presowing application of organic fertilizers 0.57 average, direct y = 0.72x+8.41
Early spring fertilizing -0.99 strong, reverse y = 0.45x+15.9

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