Abstract
Conservation agriculture (CA) can promote sustainable crop intensification. However, weeds are the major constraints under CA, in the initial years. Nitrogen (N) management under CA is also crucial. A field experiment was undertaken to study the effect of conventional tillage (CT) and CA with and without residue using 75 and 100% recommended N dose on weed dynamics and crop productivity during 2018-19 and 2019-20 in maize (Zea mays L.) under maize - wheat (Triticum aestivum L.) - greengram (Vigna radiata (L.) Wilczek) cropping system at ICAR-Indian Agricultural Research Institute, New Delhi. Nine CA-based treatments and one conventional tillage were laid out in a randomized complete block design with three replications. CA-based zero till (ZT) bed planting systems with residue retention resulted in significant reductions in total weed density and biomass compared to CT. Permanent broad bed with residue using 75% N resulted in 34% lesser weed density than CT. Among the CA-based treatments, the permanent broad bed with residue using 100% N resulted in ~ 22% higher maize grain yield than CT (5.72 t/ha) with 36% higher net returns than CT owever, the permanent broad bed with residue using 75% N was found comparable in this regard and may be recommended for sustainable maize production under the maize-wheat-green gram system in north-western Indo Gangetic Plains of India.
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Claims 7
Claim · model-written summary
Zero till bed systems retaining residue significantly reduced weed density relative to conventional tillage.
- Treatment
- CA-based zero till (ZT) bed planting systems with residue retentione0
- Interactor
- weede0weed
- Outcome
- total weed densitye0
- Direction
- reductionse0
- Comparator
- CTe0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CA-based zero till (ZT) bed planting systems with residue retention resulted in significant reductions in total weed density and biomass compared to CT”
t0“weed dynamics and maize productivity”
Claim · model-written summary
Zero till bed systems retaining residue significantly reduced weed biomass relative to conventional tillage.
- Treatment
- CA-based zero till (ZT) bed planting systems with residue retentione0
- Interactor
- weede0weed
- Outcome
- weed density and biomasse0
- Direction
- reductionse0
- Comparator
- CTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CA-based zero till (ZT) bed planting systems with residue retention resulted in significant reductions in total weed density and biomass compared to CT”
t0“weed dynamics and maize productivity”
Claim · model-written summary
Permanent broad beds with residue and 75% nitrogen had 34% less weed density than conventional tillage.
- Treatment
- Permanent broad bed with residue using 75% Ne0
- Interactor
- weede0weed
- Outcome
- weed densitye0
- Direction
- lessere0
- Value
- 34%e0
- Comparator
- CTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Permanent broad bed with residue using 75% N resulted in 34% lesser weed density than CT”
t0“weed dynamics and maize productivity”
Claim · model-written summary
Permanent broad beds with residue and 100% nitrogen gave about 22% higher maize grain yield than conventional tillage.
- Treatment
- permanent broad bed with residue using 100% Ne0
- Outcome
- maize grain yielde0
- Direction
- highere0
- Value
- ~ 22%e0
- Qualifier
- 5.72 t/hae0
- Comparator
- CTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the permanent broad bed with residue using 100% N resulted in ~ 22% higher maize grain yield than CT (5.72 t/ha) with 36% higher net returns than CT”
Claim · model-written summary
Permanent broad beds with residue and 100% nitrogen gave 36% higher net returns than conventional tillage.
- Treatment
- permanent broad bed with residue using 100% Ne0
- Outcome
- net returnse0
- Direction
- highere0
- Value
- 36%e0
- Comparator
- CTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the permanent broad bed with residue using 100% N resulted in ~ 22% higher maize grain yield than CT (5.72 t/ha) with 36% higher net returns than CT”
Claim · model-written summary
Permanent broad beds with residue and 75% nitrogen performed comparably on the reported yield and returns.
- Treatment
- permanent broad bed with residue using 75% Ne0
- Outcome
- comparable in this regarde0
- Direction
- comparablee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the permanent broad bed with residue using 75% N was found comparable in this regard and may be recommended for sustainable maize production under the maize-wheat-green gram system in north-western Indo Gangetic Plains of India”
Claim · model-written summary
The authors recommend permanent broad beds with residue and 75% nitrogen for sustainable maize production.
- Treatment
- permanent broad bed with residue using 75% Ne0
- Outcome
- sustainable maize productione0
- Setting
- north-western Indo Gangetic Plains of Indiae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the permanent broad bed with residue using 75% N was found comparable in this regard and may be recommended for sustainable maize production under the maize-wheat-green gram system in north-western Indo Gangetic Plains of India”
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organic · weed · Zea mays (maize)Positive and negative results
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- no effect
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See all 21 papers →tillage · weed · Zea mays (maize)Positive and negative results
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See all 111 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.