Abstract
To evaluate the bio-efficacy of pre-emergence tank-mix and sequential application (pre-emergence followed by (fb) post-emergence) of herbicides on weeds particularly Cyperus rotundus L. in maize (Zea mays L.), a field experiment was conducted in 2010 and 2011 at the Indian Agricultural Research Institute, New Delhi. It was observed that the tank-mix pre-emergence application of pendimethalin 0.75 kg/ha + imazethapyr 0.050 kg/ha with or without KNO3 (6%) and pendimethalin 0.75 kg/ha + chlorimuron-p- ethyl 0.006 kg/ha resulted in significant suppression of Cyperus rotundus, broad leaved and grassy weeds, and caused a significant reduction in total weed population and dry weight. These tank-mixes were superior to other weed control treatments and resulted in higher weed control efficiency and weed control index. However, the pre-emergence tank-mix application of pendimethalin 0.75 kg/ha + imazethapyr 0.050 kg/ ha resulted in comparable maize yield with weed-free check in both years, but the yields in this treatment were higher than in other weed control treatments. This treatment, excluding weed-free check, resulted in the highest net returns and net benefit:cost. Atrazine 1.0 kg/ha + mustard residue mulch @ 5 tonnes/ha was the next best treatment, resulting in higher maize yield through concurrent reduction in weed competition.
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Claims 8
Claim · model-written summary
Pendimethalin plus imazethapyr, with or without KNO3, significantly suppressed Cyperus rotundus, broad-leaved and grassy weeds.
- Treatment
- pendimethalin 0.75 kg/ha + imazethapyr 0.050 kg/ha with or without KNO3 (6%)e0
- Interactor
- Cyperus rotundus
Cyperus rotunduse0weed - Outcome
- suppression of Cyperus rotundus, broad leaved and grassy weedse0
- Direction
- suppressione0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tank-mix pre-emergence application of pendimethalin 0.75 kg/ha + imazethapyr 0.050 kg/ha with or without KNO3 (6%) and pendimethalin 0.75 kg/ha + chlorimuron-p- ethyl 0.006 kg/ha resulted in significant suppression of Cyperus rotundus, broad leaved and grassy weeds”
t0“maize”
Claim · model-written summary
Pendimethalin plus chlorimuron-p-ethyl significantly suppressed Cyperus rotundus and other weeds.
- Treatment
- pendimethalin 0.75 kg/ha + chlorimuron-p- ethyl 0.006 kg/hae0
- Interactor
- Cyperus rotundusCyperus rotunduse0weed
- Outcome
- suppression of Cyperus rotundus, broad leaved and grassy weedse0
- Direction
- suppressione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pendimethalin 0.75 kg/ha + chlorimuron-p- ethyl 0.006 kg/ha resulted in significant suppression of Cyperus rotundus, broad leaved and grassy weeds”
t0“maize”
Claim · model-written summary
The tank mixes significantly reduced total weed population and dry weight.
- Treatment
- tank-mixese0
- Interactor
- weede1weed
- Outcome
- total weed population and dry weighte1
- Direction
- reductione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These tank-mixes were superior to other weed control treatments and resulted in higher weed control efficiency and weed control index”
e1“caused a significant reduction in total weed population and dry weight”
t0“maize”
Claim · model-written summary
The tank mixes gave higher weed control efficiency and weed control index than other weed control treatments.
- Treatment
- tank-mixese0
- Interactor
- weede0weed
- Outcome
- weed control efficiency and weed control indexe0
- Direction
- highere0
- Comparator
- other weed control treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These tank-mixes were superior to other weed control treatments and resulted in higher weed control efficiency and weed control index”
t0“maize”
Claim · model-written summary
Pendimethalin plus imazethapyr produced maize yield comparable to a weed-free check in both years.
- Treatment
- pendimethalin 0.75 kg/ha + imazethapyr 0.050 kg/ hae0
- Outcome
- maize yielde0
- Direction
- comparablee0
- Qualifier
- both yearse0
- Comparator
- weed-free checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pendimethalin 0.75 kg/ha + imazethapyr 0.050 kg/ ha resulted in comparable maize yield with weed-free check in both years”
Claim · model-written summary
Pendimethalin plus imazethapyr gave higher maize yields than other weed control treatments.
- Treatment
- pendimethalin 0.75 kg/ha + imazethapyr 0.050 kg/ hae1
- Outcome
- yieldse0
- Direction
- highere0
- Comparator
- other weed control treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the yields in this treatment were higher than in other weed control treatments”
e1“pendimethalin 0.75 kg/ha + imazethapyr 0.050 kg/ ha resulted in comparable maize yield”
Claim · model-written summary
Apart from the weed-free check, this treatment produced the highest net returns and net benefit:cost.
- Treatment
- pendimethalin 0.75 kg/ha + imazethapyr 0.050 kg/ hae1
- Outcome
- net returns and net benefit:coste0
- Direction
- higheste0
- Comparator
- weed-free checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This treatment, excluding weed-free check, resulted in the highest net returns and net benefit:cost”
e1“pendimethalin 0.75 kg/ha + imazethapyr 0.050 kg/ ha resulted in comparable maize yield”
Claim · model-written summary
Atrazine plus mustard residue mulch was the next best treatment and gave higher maize yield with reduced weed competition.
- Treatment
- Atrazine 1.0 kg/ha + mustard residue mulch @ 5 tonnes/hae0
- Interactor
- weede0weed
- Outcome
- maize yielde0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Atrazine 1.0 kg/ha + mustard residue mulch @ 5 tonnes/ha was the next best treatment, resulting in higher maize yield through concurrent reduction in weed competition”
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See all 364 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.