Management of resistant Phalaris minor under different crop establishment techniques in wheat
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Date
2005
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Publisher
CCSHAU
Abstract
The present investigation entitled, “Management of resistant
Phalaris minor under different crop establishment techniques in wheat (Triticum
aestivum)” was conducted at farmers field, village-Uchani, District-Karnal
during rabi (winter) season of 2000-2001. The experiment was carried out as
three separate experiments for three crop establishment techniques viz; zero
tillage (ZT), bed planting (BP) and conventional tillage (CT). Three separate
experiments were carried out at farmer’s field which was uniformly infested
with natural population of resistant P. minor. High tillage option employed in
three experiment had seven weed control treatments viz; clodinafop-propagyl,
Sulfosulfuron, clodinafop-propargyl + metsufuron-methyl, fenoxa prop-P-ethyl,
fenoxaprop P-ethyl + metsulfuron methyl, isoproturon and weed free check.
The experiment was conducted in RBD with three replications.
The grain yield of wheat in the treatment of clodinafop,
sulfosulfuron or fenaxoprop were significantly more than the treatment of
isporoturon alone or tank mixture of these herbicides with metsulfuron. The
average yield following the treatment of isoproturon in all the three
experiments ranged from 3031 kg/ha to 2325 kg/ha compared to 4529 kg/ha
to 4296 kg/ha in alternate herbicides. The magnitude of treatment effects
remained similar in all the three separate experiments. The relative yields of
the wheat under the treatment of isoproturon were 30.3, 25.3 and 23.2 q/ha in
zero, bed and conventional tillage, respectively.