Ecology, Environment and Conservation Paper

Vol 29, Issue 2, 2023; Page No.(910-914)

EFFECT OF WEED MANAGEMENT PRACTICES ON QUALITY, WEEDCOUNT, WEED DRY MATTER AND WEED CONTROL EFFICIENCY INLINSEED

Md. Parwaiz Alam, Sulochna, C.S. Singh and Satish Kumar Pandey

Abstract

An experiment was conducted during Rabi 2018-19 and 2019-20 at Research Farm of Birsa AgriculturalUniversity, Kanke, Ranchi, Jhrakhand to study the “Effect of weed management practices on quality, weedcount, weed dry matter and weed control efficiency in linseed”. The treatments replicated thrice andcomprised of weed management practices viz., T1-Weedy Check, T2-Hand weeding twice at 30 and 60 DAS,T3-Metribuzin 250 g/ha + Oxyflourfen 125g/ha (Pre.), T4-Pendimethalin 1 kg/ha (Pre.) fb. Metsulfuronmethyl 4 g/ha (Post.), T5-Imazethapyr 75 g/ha (Post.), T6-Oxyflourfen 125 g/ha (Pre.), T7-Metsulfuronmethyl 4 g/ha (Post.), T8-Clodinafop 60 g/ha (Post.), T9-Clodinafop 60 g/ha + metsulfuron methyl 4 g/ha(Post.) and T10-Oxadiargyl 80 g/ha (Pre.). Application of Hand Weeding twice at 30 and 60 AS was foundsuperior in terms of oil content (38.91%) and oil yield (586.80 kg/ha) in pooled data. Also, analysis ofpooled data revealed that Hand Weeding Twice at 30 and 60 DAS resulted in minimum total weed count(1.21 and 3.12 respectively), total weed dry matter (1.18 and 3.50 g/m2 respectively) and maximum weedcontrol efficiency (97.03 and 79.95% respectively) when labours are easily available followed by postemergence application of clodinofop @ 60 g/ha+ metsulfuson methyl @4 g/ha in case of labours scarcity orit could be an alternative of hand weeding twice