Abstract
This study evaluated the impact of contrasting tillage and nitrogen management options on the growth, yield attributes, and yield of maize (Zea mays L.) in a conservation agriculture (CA)-based maize-wheat (Triticum aestivum L.) system. The field experiment was conducted during the rainy (kharif) seasons of 2020 and 2021 at the research farm of ICAR-Indian Agricultural Research Institute (IARI), New Delhi. The experiment was conducted in a split plot design with three tillage practices [conventional tillage with residue (CT), zero tillage with residue (ZT) and permanent beds with residue (PB)] as main plot treatments and in sub-plots five nitrogen management options [Control (without N fertilization), recommended dose of N @150 kg N/ha, Green Seeker-GS based application of split applied N, N applied as basal through urea super granules-USG + GS based application and 100% basal application of slow release fertilizer (SRF) @150 kg N/ha] with three replications. Results showed that both tillage and nitrogen management options had a significant impact on maize growth, yield attributes, and yield in both seasons. However, time to anthesis and physiological maturity were not significantly affected. Yield attributes were highest in the permanent beds and zero tillage plots, with similar numbers of grains per cob (486.1 and 468.6). The highest leaf area index (LAI) at 60 DAP was observed in PB (5.79), followed by ZT(5.68) and the lowest was recorded in CT (5.25) plots. The highest grain yield (2-year mean basis) was recorded with permanent beds plots (5516 kg/ha), while the lowestwas observed with conventional tillage (4931 kg/ha). Therefore, the study highlights the importance of CA practices for improving maize growth and yield, and suggests that farmers can achieve better results through the adoption of CA-based permanent beds and use of USG as nitrogen management option.
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Claims 9
Claim · model-written summary
Tillage and nitrogen management options had a significant impact on maize growth, yield attributes and yield in both seasons.
- Treatment
- tillage and nitrogen management optionse0
- Outcome
- maize growth, yield attributes, and yielde0
Zea maysNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both tillage and nitrogen management options had a significant impact on maize growth, yield attributes, and yield in both seasons”
Claim · model-written summary
Time to anthesis and physiological maturity of maize were not significantly affected by tillage or nitrogen management.
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“time to anthesis and physiological maturity were not significantly affected”
t0“Zea mays”
Claim · model-written summary
Yield attributes were highest in permanent beds and zero tillage plots, with similar numbers of grains per cob (486.1 and 468.6).
- Treatment
- permanent beds and zero tillagee0
- Outcome
- Yield attributese0
- Direction
- higheste0
- Value
- 486.1 and 468.6e0
- Qualifier
- similar numbers of grains per cobe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield attributes were highest in the permanent beds and zero tillage plots, with similar numbers of grains per cob (486.1 and 468.6)”
t0“Zea mays”
Claim · model-written summary
Leaf area index at 60 DAP was highest in permanent beds (5.79).
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest leaf area index (LAI) at 60 DAP was observed in PB (5.79)”
t0“Zea mays”
Claim · model-written summary
Leaf area index at 60 DAP in zero tillage (5.68) followed that of permanent beds.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest leaf area index (LAI) at 60 DAP was observed in PB (5.79), followed by ZT(5.68)”
t0“Zea mays”
Claim · model-written summary
Leaf area index at 60 DAP was lowest in conventional tillage (5.25).
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leaf area index (LAI) at 60 DAP”
e1“the lowest was recorded in CT (5.25)”
t0“Zea mays”
Claim · model-written summary
Grain yield (2-year mean) was highest with permanent beds (5516 kg/ha).
- Treatment
- permanent bedse0
- Outcome
- grain yielde0
- Direction
- higheste0
- Value
- 5516 kg/hae0
- Qualifier
- 2-year mean basise0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest grain yield (2-year mean basis) was recorded with permanent beds plots (5516 kg/ha)”
t0“Zea mays”
Claim · model-written summary
Grain yield (2-year mean) was lowest with conventional tillage (4931 kg/ha).
- Treatment
- conventional tillagee1
- Outcome
- grain yielde0
- Direction
- lowestwase1
- Value
- 4931 kg/hae1
- Qualifier
- 2-year mean basise0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain yield (2-year mean basis)”
e1“lowestwas observed with conventional tillage (4931 kg/ha)”
t0“Zea mays”
Claim · model-written summary
The authors suggest farmers can achieve better results by adopting conservation agriculture permanent beds and using urea super granules as nitrogen management.
- Treatment
- CA-based permanent beds and use of USG as nitrogen management optione0
- Outcome
- better resultse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“farmers can achieve better results through the adoption of CA-based permanent beds and use of USG as nitrogen management option”
t0“Zea mays”
The same questions in other papers
tillage · growth · Zea mays (maize)Positive and negative results
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- negative
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See all 283 papers →tillage · yield · Zea mays (maize)Positive and negative results
811 papers in the same direction as this paper · 230 in the opposite direction · 57 reporting no difference from an alternative
- no effect
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See all 1,099 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.