Effect of weed management practices on growth, yield and nutrient uptake of mothbean (Vigna aconitifolia (Jacq.) Marechal)
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Date
2005
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
CCSHAU
Abstract
ABSTRACT
Title of Thesis : Effect of weed management practices on
growth, yield and nutrient uptake of
mothbean (Vigna aconitifolia (Jacq.)
Marechal)
Name of Degree Holder : YogAnder Kumar
Admission No. : 2001A210M
Title of Degree : Master of Sciences in Agronomy
Name and Address of Major
Advisor
: [DR. V.K. YADAV]
Sr. E.S. (Agronomy)
Krishi: Vigyan Kendra, Bawal
CCS Haryana Agricultural University,
Hisar-125004, INDIA
Degree Awarding University : CCS Haryana Agricultural University,
Hisar-125004 (Haryana) India.
Year of Award of Degree : 2005
Major Subject : Agronomy
Total No. of Pages in the Thesis : 67 + vi + i
No. of words in the abstract : 300 approx.
-134
DISCUSSION
Keyword: Mothbean, (vigna aconitifolia (jacq.) Marechal), Rainfed, Integrated weed
control, pendimethalin, Nutrient uptake, Hand weeding, Soil moisture, Economics
The present study entitled “Effect of weed management studies in
mothbean [Vigna aconitifolia (Jacq) Marechal] was conducted at Research Farm,
Chaudhary Charan Singh Haryana Agricultural University, Regional Research Station,
Bawal, during kharif season of 2003. The soil was loamy sand in texture, poor in
organic carbon (0.15) and alkaline in nature (pH 8.4). The experiment consisted of
eight treatments i.e. HW 20 DAS, HW 30 DAS, HW 40 DAS, HW 20 and 30 DAS, HW 20
and 40 DAS, HW 30
and 40 DAS, pre-emergence application of pendimethalin @ 0.75 and 1 kg ha-1 alone
and in combination with one hand weeding at 30 DAS, weedy and weed free check.
The experiment was laid out in Randomized Block Design with three replications.
All the weed control treatments effectively controlled the weeds by
significantly reducing the density and dry weight as well as nutrient uptake by weeds.
Pendimethalin @ 0.75 kg or 1 kg ha-1 effectively controlled Trianthema
portulacastrum, Digera arvensis, Dactyloctenium aegyptium, but did not prove
effective against Cyperus rotundus. Different weed control treatments had no effect
on the yield attributes except number of pods per plant. However, dry weight of
plants, plant population, plant height, grain yield and stover yield decreased with the
application of pendimethalin at both the doses due to its phytotoxic effects, but
increased with 2 hand weedings at 20 and 40 DAS. Maximum and minimum grain and
stover yields (740 and 1682 kg ha-1) were recorded in weed free treatment whereas
their minimum value (378 and 1180 kg ha-1) were recorded in weed check
treatments. The yield of the grain and stover in weed check reduced to extent of 49
and 30 per cent as compared to weed free. Maximum net return (4235 Rs. ha-1) were
obtained with 2 hand weeding at 20 and 40 DAS.
Major Advisor Signature of the Degree Holder
Head of the Department