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Results of the regression analysis to estimate the effect of maize cultivating duration on five soil properties in sloped fields.
| TC | TN | Av-P | Ex-K | Ex-Ca | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| cultivating duration | − 0.48*** | − 0.028*** | − 0.38*** | − 0.011*** | − 0.37*** | |||||
| intercept | 29.1*** | 2.0*** | 15*** | 0.55*** | 31*** | |||||
| R-square | 0.30 | 0.33 | 0.12 | 0.24 | 0.11 | |||||
| adjusted R-square | 0.29 | 0.32 | 0.11 | 0.24 | 0.10 | |||||
***Represents statistical significance at p < 0.001.
