Abstract
A field investigation entitled efficacy of pre and post emergence herbicides against weed flora in onion (Allium cepa L.) was carried out at AICRP on weed management field of Agronomy Department, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola during the Rabi season of 2018-19. The investigation was carried out to evaluate the efficacy of different pre and post emergence herbicides against weed flora, as well as to study the phytotoxic effect on the crop, yield of onion and to study the economics of different method of weed control in onion. The experiment was laid out in randomized block design with nine treatment replicated thrice. The treatment comprised of different pre-emergence, post-emergence herbicides in different doses and were compared with cultural method. The soil of experimental field was fairly uniform and leveled and characterized as clayey in texture, having slightly alkaline reaction with pH (7.7) low organic carbon status (0.41%), low nitrogen content (197.21 kg ha-1), medium available phosphorus (18.76 kg ha-1) and rich in available potassium (366.49 kg ha-1). Onion (Variety- Akola Safed) was transplanted on 14th December 2018 at 20×10 cm spacing with fertilizer dose of 100:50:50 NPK kg ha-1. The results revealed that among the various treatments under study weed free recorded significantly higher values of major parameters wheareas, in the herbicidal treatments, the maximum yield attributes were recorded with application of pendimethalin 24% + oxyfluorfen 4% ZE @600+102.5 g a.i./ha which was at par with treatment Oxyfluorfen 23.5% EC@ 200 g a.i./ha. Among the herbicidal treatment, reduction in weed population, weed dry matter, higher weed control efficiency (85.86%) and lowest weed index (4.29%) was found with pendimethalin 24% + oxyfluorfen 4% ZE @600+102.5 g a.i./ha and higher weed index in weedy check (54.33). Pendimethalin 24% + oxyfluorfen 4% ZE @600+102.5 g a.i./ha was found most economical with maximum value of GMR (188290 Rs ha-1) , NMR ( 126520 Rs ha-1) and B: C ratio (3.04). The net return per hectare was more under cultural practice i.e. two hand weeding at 25 and 45 DAT but the difference was not much when compared to effective pre emergence herbicide (Pendimethalin 24% + oxyfluorfen 4% ZE @600+102.5 g a.i./ha).
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Claims 10
Claim · model-written summary
Weed-free plots had significantly higher major yield parameters than the other treatments in onion.
- Taxon
- Onion
Allium cepat0 - Treatment
- weed freee1
- Outcome
- major parameterse1
- Direction
- highere1
- Comparator
- various treatments under studye1
- Setting
- Akolae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Onion (Allium cepa L.)”
e0“was carried out at AICRP on weed management field of Agronomy Department, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola during the Rabi season of 2018-19”
e1“among the various treatments under study weed free recorded significantly higher values of major parameters”
Claim · model-written summary
Pendimethalin 24% + oxyfluorfen 4% gave maximum yield attributes in onion, at par with oxyfluorfen alone.
- Taxon
- OnionAllium cepat0
- Treatment
- pendimethalin 24% + oxyfluorfen 4% ZE @600+102.5 g a.i./hae2
- Outcome
- yield attributese2
- Direction
- maximume2
- Qualifier
- at pare2
- Comparator
- Oxyfluorfen 23.5% EC@ 200 g a.i./hae2
- Setting
- Akolae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Onion (Allium cepa L.)”
e0“was carried out at AICRP on weed management field of Agronomy Department, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola during the Rabi season of 2018-19”
e2“the maximum yield attributes were recorded with application of pendimethalin 24% + oxyfluorfen 4% ZE @600+102.5 g a.i./ha which was at par with treatment Oxyfluorfen 23.5% EC@ 200 g a.i./ha”
Claim · model-written summary
Pendimethalin 24% + oxyfluorfen 4% gave the highest weed control efficiency (85.86%) among herbicide treatments.
- Taxon
- OnionAllium cepat0
- Treatment
- pendimethalin 24% + oxyfluorfen 4% ZE @600+102.5 g a.i./hae3
- Outcome
- weed control efficiencye3
- Direction
- highere3
- Value
- 85.86%e3
- Comparator
- herbicidal treatmente3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Onion (Allium cepa L.)”
e3“Among the herbicidal treatment, reduction in weed population, weed dry matter, higher weed control efficiency (85.86%) and lowest weed index (4.29%) was found with pendimethalin 24% + oxyfluorfen 4% ZE @600+102.5 g a.i./ha and higher weed index in weedy check (54.33)”
Claim · model-written summary
Pendimethalin 24% + oxyfluorfen 4% gave the lowest weed index (4.29%) among herbicide treatments.
- Taxon
- OnionAllium cepat0
- Treatment
- pendimethalin 24% + oxyfluorfen 4% ZE @600+102.5 g a.i./hae3
- Outcome
- weed indexe3
- Direction
- loweste3
- Value
- 4.29%e3
- Comparator
- herbicidal treatmente3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Onion (Allium cepa L.)”
e3“Among the herbicidal treatment, reduction in weed population, weed dry matter, higher weed control efficiency (85.86%) and lowest weed index (4.29%) was found with pendimethalin 24% + oxyfluorfen 4% ZE @600+102.5 g a.i./ha and higher weed index in weedy check (54.33)”
Claim · model-written summary
Pendimethalin 24% + oxyfluorfen 4% reduced weed population and weed dry matter among herbicide treatments.
- Taxon
- OnionAllium cepat0
- Treatment
- pendimethalin 24% + oxyfluorfen 4% ZE @600+102.5 g a.i./hae3
- Outcome
- weed population, weed dry mattere3
- Direction
- reductione3
- Comparator
- herbicidal treatmente3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Onion (Allium cepa L.)”
e3“Among the herbicidal treatment, reduction in weed population, weed dry matter, higher weed control efficiency (85.86%) and lowest weed index (4.29%) was found with pendimethalin 24% + oxyfluorfen 4% ZE @600+102.5 g a.i./ha and higher weed index in weedy check (54.33)”
Claim · model-written summary
The weedy check had a higher weed index (54.33) than the herbicide treatments.
- Taxon
- OnionAllium cepat0
- Treatment
- weedy checke3
- Outcome
- weed indexe3
- Direction
- highere3
- Value
- 54.33e3
- Comparator
- herbicidal treatmente3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Onion (Allium cepa L.)”
e3“Among the herbicidal treatment, reduction in weed population, weed dry matter, higher weed control efficiency (85.86%) and lowest weed index (4.29%) was found with pendimethalin 24% + oxyfluorfen 4% ZE @600+102.5 g a.i./ha and higher weed index in weedy check (54.33)”
Claim · model-written summary
Pendimethalin 24% + oxyfluorfen 4% gave the maximum gross monetary return (188290 Rs ha-1) and was the most economical treatment.
- Taxon
- OnionAllium cepat0
- Treatment
- Pendimethalin 24% + oxyfluorfen 4% ZE @600+102.5 g a.i./hae4
- Outcome
- GMRe4
- Direction
- maximume4
- Value
- 188290 Rs ha-1e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Onion (Allium cepa L.)”
e4“Pendimethalin 24% + oxyfluorfen 4% ZE @600+102.5 g a.i./ha was found most economical with maximum value of GMR (188290 Rs ha-1) , NMR ( 126520 Rs ha-1) and B: C ratio (3.04)”
Claim · model-written summary
Pendimethalin 24% + oxyfluorfen 4% gave the maximum net monetary return (126520 Rs ha-1).
- Taxon
- OnionAllium cepat0
- Treatment
- Pendimethalin 24% + oxyfluorfen 4% ZE @600+102.5 g a.i./hae4
- Outcome
- NMRe4
- Direction
- maximume4
- Value
- 126520 Rs ha-1e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Onion (Allium cepa L.)”
e4“Pendimethalin 24% + oxyfluorfen 4% ZE @600+102.5 g a.i./ha was found most economical with maximum value of GMR (188290 Rs ha-1) , NMR ( 126520 Rs ha-1) and B: C ratio (3.04)”
Claim · model-written summary
Pendimethalin 24% + oxyfluorfen 4% gave the maximum benefit-cost ratio (3.04).
- Taxon
- OnionAllium cepat0
- Treatment
- Pendimethalin 24% + oxyfluorfen 4% ZE @600+102.5 g a.i./hae4
- Outcome
- B: C ratioe4
- Direction
- maximume4
- Value
- 3.04e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Onion (Allium cepa L.)”
e4“Pendimethalin 24% + oxyfluorfen 4% ZE @600+102.5 g a.i./ha was found most economical with maximum value of GMR (188290 Rs ha-1) , NMR ( 126520 Rs ha-1) and B: C ratio (3.04)”
Claim · model-written summary
Net return per hectare was higher under two hand weedings at 25 and 45 DAT than under the effective pre-emergence herbicide, though the difference was small.
- Taxon
- OnionAllium cepat0
- Treatment
- cultural practice i.e. two hand weeding at 25 and 45 DATe5
- Outcome
- net return per hectaree5
- Direction
- moree5
- Qualifier
- the difference was not muche5
- Comparator
- effective pre emergence herbicidee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Onion (Allium cepa L.)”
e5“The net return per hectare was more under cultural practice i.e. two hand weeding at 25 and 45 DAT but the difference was not much when compared to effective pre emergence herbicide”
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