Abstract
A field experiment was conducted during kharif seasons of 2004 and 2005 at Pantnagar to study the effect of two tillage, three seed rate and four weed control methods on weed growth, yield and nutrient uptake in maize ( Zea mays L.). There was significant increase in grain yield with conventional tillage (23.5% on mean basis) due to reduced population and dry weight of weeds when compared with no-tillage (3.69 t/ha). Grain yield recorded with 24 kg seed/ha was significantly higher (10%) when compared with the yield recorded with 16 kg seed/ ha in 2005. However, net returns were higher in maize sown with a seed rate of 24 kg/ha in both the years. Similarly, two hand weedings at 25 and 45 days after sowing (DAS) recorded significantly higher grain yield (26% in 2004 and 68% in 2005) and nutrient uptake and reduced the population and dry weight of weeds as compared to weedy check. Two hand weedings at 25 and 45 DAS with higher seed rate (24 kg/ha) under tilled condition ap- peared to be the best in producing yield of maize, reducing weed growth and for enhanced profits.
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Claims 9
Claim · model-written summary
Conventional tillage increased maize grain yield by 23.5% on average over no tillage.
- Treatment
- conventional tillagee0
- Outcome
- grain yielde0
- Direction
- increasee0
- Value
- 23.5%e0
- Qualifier
- 3.69 t/hae0
- Comparator
- no-tillagee0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“significant increase in grain yield with conventional tillage (23.5% on mean basis) due to reduced population and dry weight of weeds when compared with no-tillage (3.69 t/ha)”
Claim · model-written summary
Conventional tillage reduced weed population and dry weight relative to no tillage.
- Treatment
- conventional tillagee0
- Interactor
- weedse0weed
- Outcome
- population and dry weight of weedse0
- Direction
- reducede0
- Comparator
- no-tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“conventional tillage (23.5% on mean basis) due to reduced population and dry weight of weeds when compared with no-tillage”
Claim · model-written summary
Sowing 24 kg seed/ha increased 2005 maize grain yield by 10% over 16 kg seed/ ha.
- Treatment
- 24 kg seed/hae0
- Outcome
- Grain yielde0
- Direction
- highere0
- Value
- 10%e0
- Qualifier
- in 2005e0
- Comparator
- 16 kg seed/ hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“Grain yield recorded with 24 kg seed/ha was significantly higher (10%) when compared with the yield recorded with 16 kg seed/ ha in 2005”
Claim · model-written summary
The 24 kg/ha maize seed rate produced higher net returns in both years.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“net returns were higher in maize sown with a seed rate of 24 kg/ha in both the years”
Claim · model-written summary
Two hand weedings increased maize grain yield by 26% in 2004 relative to a weedy check.
- Treatment
- two hand weedings at 25 and 45 days after sowing (DAS)e0
- Outcome
- grain yielde0
- Direction
- highere0
- Value
- 26%e0
- Qualifier
- in 2004e0
- Comparator
- weedy checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“two hand weedings at 25 and 45 days after sowing (DAS) recorded significantly higher grain yield (26% in 2004 and 68% in 2005) and nutrient uptake and reduced the population and dry weight of weeds as compared to weedy check”
Claim · model-written summary
Two hand weedings increased maize grain yield by 68% in 2005 relative to a weedy check.
- Treatment
- two hand weedings at 25 and 45 days after sowing (DAS)e0
- Outcome
- grain yielde0
- Direction
- highere0
- Value
- 68%e0
- Qualifier
- in 2005e0
- Comparator
- weedy checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“two hand weedings at 25 and 45 days after sowing (DAS) recorded significantly higher grain yield (26% in 2004 and 68% in 2005) and nutrient uptake and reduced the population and dry weight of weeds as compared to weedy check”
Claim · model-written summary
Two hand weedings increased maize nutrient uptake relative to a weedy check.
- Treatment
- two hand weedings at 25 and 45 days after sowing (DAS)e0
- Outcome
- nutrient uptakee0
- Direction
- highere0
- Comparator
- weedy checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“two hand weedings at 25 and 45 days after sowing (DAS) recorded significantly higher grain yield (26% in 2004 and 68% in 2005) and nutrient uptake and reduced the population and dry weight of weeds as compared to weedy check”
Claim · model-written summary
Two hand weedings reduced weed population and dry weight relative to a weedy check.
- Treatment
- two hand weedings at 25 and 45 days after sowing (DAS)e0
- Interactor
- weedse0weed
- Outcome
- population and dry weight of weedse0
- Direction
- reducede0
- Comparator
- weedy checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“two hand weedings at 25 and 45 days after sowing (DAS) recorded significantly higher grain yield (26% in 2004 and 68% in 2005) and nutrient uptake and reduced the population and dry weight of weeds as compared to weedy check”
Claim · model-written summary
The authors identify two hand weedings with a 24 kg/ha seed rate under tillage as the best combination for maize yield, weed control and profit.
- Treatment
- Two hand weedings at 25 and 45 DAS with higher seed rate (24 kg/ha) under tilled conditione0
- Outcome
- best in producing yield of maize, reducing weed growth and for enhanced profitse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“Two hand weedings at 25 and 45 DAS with higher seed rate (24 kg/ha) under tilled condition ap- peared to be the best in producing yield of maize, reducing weed growth and for enhanced profits”
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811 papers in the same direction as this paper · 230 in the opposite direction · 57 reporting no difference from an alternative
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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.