Zero tillage and residue management (ZT +R) recorded the lowest density of Phalaris minor, Avena ludoviciana, Medicago denticulata, Rumex dentatus, Choronopus didymus and Cyperus rotundus in mustard. Pre-emergence application of pendimethalin @339 g/ha (2 DAS) fb hand weeding (30 DAS) fb weed seed harvest recorded the lowest density and biomass of all weeds, and the highest seed yield of mustard. The residues of pendimethalin and fenoxaprop-propargyl in soil (<0.01 µg/g) and mustard (<0.05 µg/g) at harvest were below detectable limit.

(Source: ICAR-Directorate of Weed Research, Jabalpur)







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