Book of Extended summaries ISDA

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges &
Opportunities during 22-24, December 2022 at ICAR-CRIDA, Hyderabad
is cost effective also. On the other hand, physical weed control measure viz. hand weeding are
safe but labour intensive. Therefore, the present investigation on “Integrated weed management
in Kharif French bean (Phaseolus vulgaris)” was undertaken for different weed control
measures and their efficiency and economics in French bean.
Methodology
The field experiment was conducted during kharif 2018-19 at Farm of Agronomy section,
College of Agriculture, Latur. The soil of experimental plot was low in available nitrogen
(129.31 kg ha -1 ), medium in available phosphorus (20.42 kg ha -1 ), high in available potassium
(460.00 kg ha -1 ) and alkaline (pH 8.1) in reaction. The experiment was laid out in Randomised
block design with three replications and variety HPR-35 as a test crop along with seven
treatments viz., T 1-Pendimethalin 30% EC @1.0 kg a.i.ha -1 (PE) , T 2- Quizalofop-p-ethyl 5%
EC 100 g a.i. ha -1 at 20 DAS (POE), T3 -Pendimethalin 30% EC @1.0 kg a.i.ha -1 (PE) + One
hoeing at 30 DAS, T 4 - Quizalofop-p- ethyl 5% EC 100 g a.i. ha -1 at 20 DAS + One hoeing at
30 DAS, T5 - One hoeing followed by One hand weeding (farmers practice), T6- Weed free
(Three hand weeding), T 7- Weedy check. The effect of treatments on yield parameters and
cost economics with respect to French bean.
Results
Yield and economics: The seed yield of French bean was differed significantly due to different
weed control treatments. The weed free treatment (T 6 ) recorded higher seed yield (950 kg ha -
1 ) which was at par with treatment Pendimethalin 30% EC @ 1.0 kg a.i.ha -1 (PE) + One hoeing
at 30 DAS (T 3) and Quizalofop-p-ethyl 5% EC 100 g a.i. ha -1 at 20 DAS + One hoeing at 30
DAS (T4) and found significantly superior over rest of the treatments.
Treatments
T
1
- Pendimethalin 30% EC @1.0 kg a.i.ha -1
(PE)
T
2
- Quizalofop-p-ethyl 5% EC 100 g a.i. ha -
1
at 20 DAS (POE)
Yield and economics
Seed yield (kg
ha -1 )
Straw yield
(kg ha -1 )
GMR
(Rs. ha -1 )
NMR
(Rs. ha -1 )
B: C Ratio
760 1956 76000 40845 2.16
732 2161 73166 38167 2.09
T - Pendimethalin 30% EC @1.0 kg a.i.ha -
3
1
(PE) + One hoeing at 30 DAS
T - Quizalofop-p- ethyl 5% EC 100 g a.i. ha -
4 1 at 20 DAS + One hoeing at 30 DAS
910 2476 91000 54850 2.52
888 2427 88800 52857 2.47
T - One hoeing followed by One hand
5
774 2048 77400 37643 1.95
weeding (farmer practice)
T - Weed free
6
950 2612 95000 45115 1.90
Managing genetic resources for enhanced stress tolerance
352 | Page