Indian Journal of Weed Science · 2003 · 22 citations · 0 references
AgricultureCrop SciencesWeed ScienceCrop ProtectionWeed BiologyWeed EcologyCrop-weed InteractionsHerbicide ScienceHerbicide UptakeWeed ManagementWeed PhysiologyWeed SuppressionHerbicide Dose ReductionHerbicide Efficacy AssessmentHerbicide Efficacy EvaluationHerbicide Seed TreatmentHerbicide Treatment EfficacyPlant Density Effects On Weed SuppressionWeed Control SystemsWeed Density Assessment
Pyrazosulfuron ethyl at 20 and 25 g ha−1 significantly reduced the weed density and total weed dry weight of Cyperus iria, Sphenochlea zeylanica, Echinochloa colona and Leptochloa pamica when applied 3 to 10 days after transplanting (DAT). These treatments provided grain yield statistically similar to weed free treatment. Efficacy of herbicide was reduced when applied 20 DAT resulting in less grain yield.