Effect of fenoxaprop-P-ethyl (Puma Super 10 EC) with and without surfactant (Power Activator) on weeds and wheat yield.

摘要

A field experiment was conducted in Pantnagar, Uttaranchal, India, during the winter of 2001-02 and 2002-03 to study the effects of fenoxaprop-P-ethyl [fenoxaprop-P] applied singly or in combination with Power Activator against weeds (mainly Phalaris minor and Avena ludoviciana [A. sterilis subsp. ludoviciana] infesting wheat (cv. PBW 343)). The application of Power Activator increased the efficacy of fenoxaprop-P-ethyl at 80 and 100 g ha-1 against grassy weeds in wheat plots. The efficacy of this herbicide at 120 g ha-1 was not affected due to incorporation of the surfactant. Fenoxaprop at 100 g ha-1 with or without the surfactant resulted in wheat grain yields on a par with those recorded for the weed-free treatment and for clodinafop-propargyl [clodinafop] at 400 g ha-1..