Yield pH CEC EA AP Yield 1         pH 0. 23 1       CEC 0 .28 0.83*** 1     EA - 0. 37* - 0.78*** - 0 .84*** 1   AP 0.59*** 0.74*** 0 .81*** - 0. 81*** 1 *Significant at the <0.05, **<0.001, and ***<0.0001 levels. EA=Exchangeable acidity, AP=Available phosphorus

Table 3: Haricot bean yield correlation.