Optimum N:P:K Ratio of Fertilization Enhances Tomato Yield and Quality Under Brackish Water Irrigation.

Correlation Analysis of Soil Nutrients and Soil Enzymes From Pearson correlation analysis ( Figure 8 ), soil available P showed a highly significant positive correlation ( p < 0.01) with total p , with a correlation coefficient of 0.809; avail-able N showed a significant positive correlation ( p < 0.05) with organic matter and catalase, with correlation coefficients of 0.712 and 0.669, respectively; and organic matter showed a highly significant positive correlation ( p < 0.01) with catalase, with a correlation coefficient of 0.810.

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In this study, the nutrient concentrations of all parts of tomato plants basically showed a trend of increasing and then decreasing with the increase in P concentration.

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