Chemical weed management in lentil

Abstract

A field experiment was conducted at Regional Research Station Samargopalpur Farm, Rohtak during Rabi 2014-15 and Rabi 2015-16. Treatments included were pendimethalin 1000g/ha as PPI and PRE, imazethapyr 50 g/ha as PPI, PRE and POST, pendimethalin 1000 g/ha PPI + imazethapyr 50 g/ha PPI, pendimethalin 1000 g/ha PRE + imazethapyr 50 g/ha PRE, pendimethalin 1000 g/ha PRE fb imazethapyr 50 g/ha POST, weed free and weedy check. The experiment was laid out in RBD design with three replications. Application of herbicidal treatments resulted into significantly higher lentil plant growth, seed yield and lower weed dry weight as compared to weedy check treatment but lentil yield remained significantly higher under weed free conditions as compared to all other treatments during both the year of study. PRE application of pendimethalin was better than its PPI application while PPI application of imazethapyr was better than its PRE and POST application. Mixed and sequential application of pendimethalin and imazethapyr resulted into significantly higher plant growth, yield attributes and lentil seed yield and better weed control efficiency as compared to their alone application during both the years.