Abstract
Abstract Two soil temperatures, 19 ± 1 and 27 ± 3C affected some nutrient concentrations in roots, stems and leaves of ‘U. I. III’ pinto bean (Phaseolus vulgaris), but did not affect overall plant morphology. Acifluorfen (5‐[2‐chloro‐4‐(trifluoromethyl)phenoxy]‐2‐nitrobenzoic acid) at 0.84 kg ai/ha reduced N, P, K, Ca, Mg, Cu, Mn and Zn levels in each of the 3 plant tissues and also reduced pinto bean height, leaf area, root, leaf, and stem weight, and nodule wet weight compared to the nonherbicide‐treated controls. Bentazon [3‐(l‐methylethyl)‐(lH)‐2,l,3‐benzothiadiazin‐4(3H)‐one‐2,2‐dioxide] and sethoxydim ((2‐[l‐(ethoxyimino)butyl]‐5‐[2‐(ethylthio)propyl]‐3‐hydroxy‐2‐cyclohexen‐l‐one)) generally did not affect pinto bean growth or nutrient accumulation.
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