2022 Vol.28 No.1 PP 17­-20

https://doi.org/10.33451/florafauna.v28i1pp17-20

Yield of paddy influenced by weed control methods

Rajnish Anand¹, ^*Sima Kumari² and B. Sreedevi³

¹Chitarpur Block, RAMGARH (JHARKHAND) INDIA
²Holy cross, K.V.K. HAZARIBAG (JHARKHAND) INDIA
³Crop production section,
ICAR- Indian Institute of Rice Research (HYDERABAD) INDIA
*Corresponding Author : Email : simagromomy@gmail.com

ABSTRACT

The experiment was conducted at Chhotakipona village, Chitarpur Block, Ramgarh, Jharkhand during kharif season. The experiment was laid out in Randomised Block Design with 9 weed control methods T₁- Weedy check, T₂- Pretilachlore @ 0.75 kg a.i. ha^-1 as pre-emergence, T₃- Pretilachlore@0.75 kg a.i. ha^-1 + Bispyribac Na@25gm a.i. ha^-1, T₄- Pendimethalin @ 1 kg a.i./ha + 2, 4-D @ 1.00 kg a.i. ha^-1 at 30 DAS, T₅- Pendimethalin @ 1 kg a.i./ha as pre-emergence + Bispyribac Na @ 25 gm a.i. ha^-1, T₆- Bispyribac Na @ 25 gm a.i. ha^-1 as post-emergence at 20 DAS, T₇- Hand weeding at 20 DAS + Hoeing at 40 DAS, T₈- Two hand weeding at 20 & 40 DAS and T₉- weed free and replicated 3 times. Application of IWM (Integrated weed management) in paddy Pretilachlore@0.75 kg a.i. ha^-1 + Bispyribac Na@25gm a.i. ha^-1 recorded maximum yield attributes resulting higher grain yield (4952 kgha^-1).

Key words : yield attributes, yield and IWM (Integrated weed management) in paddy.