Abstract
A field experiment was investigated at Agricultural College and Research Institute, Killikulam for evaluating suitable weed management practices for dual purpose sorghum variety K 12 (Sorghum bicolor L.) under irrigated condition during rabi season, 2019-20. The experimental design used for the investigation was Randomized Block Design having three replications and twelve treatments. The weed management practices comprised of pre emergence herbicides namely atrazine @ 0.5 kg ha-1 and pendimethalin @ 0.5 kg ha-1, post emergence herbicides viz., 2,4-D @ 0.5 kg ha-1 and metsulfuron methyl @ 6 g ha-1 with combination of hand weeding and mechanical weeding. Observations on weeds like weed flora, weed dry weight, weed density, weed control efficiency and on growth parameters like plant height, leaf length and breadth and yield parameters like grain and stover yield were documented. The field was infested with all three genera of weeds viz. grasses, broadleaved weeds and sedges. The results obtained from the experiment revealed that the weed density and weed dry weight was higher on the unweeded plot, which produced the lowest grain and stover yield of 1672 kg ha-1 and 5380 kg ha-1, respectively. Application of atrazine @ 0.5 kg ha-1 as pre emergence + one hand weeding at 40 DAS showed a better control over the weeds with a weed control efficiency of 97.0 per cent, which ultimately resulted in higher yield producing 3998 kg ha-1 of grains and 11534 kg ha-1 of stover yield. However, this was on par with weed free check which produced the maximum yield compared to all the other treatments. The weeds accounts around 51.4% and 39.4% of grain and stover yield reduction, respectively.
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Claims 10
Claim · model-written summary
The sorghum field had grasses, broadleaved weeds and sedges.
- Interactor
- grasses, broadleaved weeds and sedgese0weed
- Outcome
- infested with all three genera of weedse0
SorghumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The field was infested with all three genera of weeds viz. grasses, broadleaved weeds and sedges.”
t0“Sorghum K12”
Claim · model-written summary
The unweeded plot had higher weed density and dry weight.
- Treatment
- unweeded plote0
- Interactor
- weede0weed
- Outcome
- weed density and weed dry weighte0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“weed density and weed dry weight was higher on the unweeded plot”
t0“Sorghum K12”
Claim · model-written summary
The unweeded plot produced the lowest grain yield, 1672 kg ha-1.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“unweeded plot, which produced the lowest grain and stover yield of 1672 kg ha-1 and 5380 kg ha-1”
t0“Sorghum K12”
Claim · model-written summary
The unweeded plot produced 5380 kg ha-1 stover yield, among the lowest yields.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“unweeded plot, which produced the lowest grain and stover yield of 1672 kg ha-1 and 5380 kg ha-1”
t0“Sorghum K12”
Claim · model-written summary
Atrazine plus one hand weeding achieved 97.0 per cent weed-control efficiency.
- Treatment
- atrazine @ 0.5 kg ha-1 as pre emergence + one hand weeding at 40 DASe0
- Interactor
- weedse0weed
- Outcome
- weed control efficiencye0
- Direction
- bettere0
- Value
- 97.0 per cente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of atrazine @ 0.5 kg ha-1 as pre emergence + one hand weeding at 40 DAS showed a better control over the weeds with a weed control efficiency of 97.0 per cent”
t0“Sorghum K12”
Claim · model-written summary
Atrazine plus hand weeding produced 3998 kg ha-1 grain yield.
- Treatment
- atrazine @ 0.5 kg ha-1 as pre emergence + one hand weeding at 40 DASe0
- Outcome
- grainse0
- Direction
- highere0
- Value
- 3998 kg ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of atrazine @ 0.5 kg ha-1 as pre emergence + one hand weeding at 40 DAS showed a better control over the weeds with a weed control efficiency of 97.0 per cent, which ultimately resulted in higher yield producing 3998 kg ha-1 of grains and 11534 kg ha-1 of stover yield.”
t0“Sorghum K12”
Claim · model-written summary
Atrazine plus hand weeding produced 11534 kg ha-1 stover yield.
- Treatment
- atrazine @ 0.5 kg ha-1 as pre emergence + one hand weeding at 40 DASe0
- Outcome
- stover yielde0
- Direction
- highere0
- Value
- 11534 kg ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of atrazine @ 0.5 kg ha-1 as pre emergence + one hand weeding at 40 DAS showed a better control over the weeds with a weed control efficiency of 97.0 per cent, which ultimately resulted in higher yield producing 3998 kg ha-1 of grains and 11534 kg ha-1 of stover yield.”
t0“Sorghum K12”
Claim · model-written summary
The atrazine plus hand-weeding treatment was on par with the weed-free check, which had the maximum yield.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this was on par with weed free check which produced the maximum yield compared to all the other treatments”
t0“Sorghum K12”
Claim · model-written summary
Weeds caused a 51.4% grain-yield reduction.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The weeds accounts around 51.4% and 39.4% of grain and stover yield reduction, respectively.”
t0“Sorghum K12”
Claim · model-written summary
Weeds caused a 39.4% stover-yield reduction.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The weeds accounts around 51.4% and 39.4% of grain and stover yield reduction, respectively.”
t0“Sorghum K12”
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See all 35 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.