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- Title
CHEMICAL AND CULTURAL WEED MANAGEMENT PRACTICES ON WEEDS AND YIELD OF GROUNDNUT.
- Authors
Nambi, J.; Immanuel, R. Rex; Rao, G. B. Sudhagar; Parthasarthi, R.
- Abstract
An experiment was conducted at farmer's field, Aladi village, Vridhachalam Taluk, Cuddalore District of Tamil Nadu, to study the performance of different herbicides and cultural practices on weeds and yield attributes of groundnut. The experiment was laid out in Randomised block design with three replications. The treatment comprised of T1 - Unweeded control, T2 - Two hand weeding at 15 DAS and 30 DAS, T3 - Pre emergence application of pendimethalin @ 1.0 kg ha-1 followed by hand weeding on 30 DAS, T4 - Pre emergence application of oxyfluorfen @ 250g ha-1 followed by hand weeding on 30 DAS, T5 - Post emergence application of imazethapyr @ 100 g ha-1 on 15 DAS, T6 - Post emergence application of quizalofop-p-ethyl @ 50 g ha-1 on 15 DAS, T7 - Pre emergence application of pendimethalin @ 1.0 kg ha-1 at 3 DAS followed by post emergence application of imazethapyr @ 100g ha-1 at 15 DAS, T8 - Pre emergence application of oxyfluorfen @ 250 g ha-1 followed by post emergence application of imazethapyr @ 100 g ha-1 at 15 DAS, T9 - Pre emergence application of pendimethalin @ 1.0 kg ha-1 followed by post emergence application of quizalofop-p-ethyl @ 50 g ha-1 at 15 DAS, T10 - Pre emergence application of oxyfluorfen @ 250 g ha-1 at 3 DAS followed by post emergence application of quizalofop-p-ethyl @ 50 g ha-1 at 15 DAS, T11 - Post emergence application of imazethapyr @ 100 g ha-1 at 15 DAS followed by hand weeding at 30 DAS, T12 - Post emergence application of quizalofop-p-ethyl @ 50 g ha-1 at 15 DAS followed by hand weeding at 30 DAS. Result indicated that pre-emergence application of Pendimethalin @ 1.0 Kg ha-1 followed by hand weeding at 30 DAS significantly lowered the weed biomass at 15 and 45 DAS and provide higher weed control efficiency at all intervals and it was followed by two hand weeding at 15 and 30 DAS. The growth and yield attributes were increased under applications of Pendimethalin @ 1.0 Kg ha-1 followed by hand weeding at 30 DAS. Unweeded control registered lower pod yield and higher weed index due to heavy competition of weeds.
- Subjects
WEED control; HERBICIDES; PEANUT yields; BLOCK designs; OXYFLUORFEN
- Publication
Plant Archives (09725210), 2019, Vol 19, Issue 2, p3551
- ISSN
0972-5210
- Publication type
Article