Abstract
Field experiments were conducted during rabi 2005–06 and 2006–07 at the Regional Agricultural Research Station, Lam, Guntur, Andhra Pradesh to find out the most effective weed management practice in zero-till sown maize crop grown after rice. Uncontrolled weed growth throughout the crop growing period caused 43% reduction in grain yield. All the weed control treatments significantly reduced the weed growth and increased maize yield by 22 to 62% over weedy check without any crop injury. Highest maize grain yield was recorded with two hand weedings and pre-emergence application of atrazine 1.5 kg/ha followed by (fb) hand weeding at 30 days after sowing (DAS). Maize grain yield did not differ significantly among the treatments with hand weeding and herbicide integration. Highest gross and net monetary returns and benefit: cost ratio were recorded with two hand weedings and with pre-emergence application of atrazine 1.5 kg/ha followed by (fb) hand weeding at 30 DAS.
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Claims 9
Claim · model-written summary
Uncontrolled weeds reduced maize grain yield by 43%.
- Treatment
- Uncontrolled weed growth throughout the crop growing periode0
- Interactor
- weede0weed
- Outcome
- grain yielde0
- Direction
- reductione0
- Value
- 43%e0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Uncontrolled weed growth throughout the crop growing period caused 43% reduction in grain yield”
t0“Maize”
Claim · model-written summary
Weed control treatments significantly reduced weed growth.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All the weed control treatments significantly reduced the weed growth”
t0“Maize”
Claim · model-written summary
Weed control treatments increased maize yield by 22 to 62% over the weedy check.
- Treatment
- weed control treatmentse1
- Outcome
- maize yielde0
- Direction
- increasede0
- Value
- 22 to 62%e0
- Comparator
- weedy checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased maize yield by 22 to 62% over weedy check”
e1“All the weed control treatments significantly reduced the weed growth”
t0“Maize”
Claim · model-written summary
Weed control treatments caused no crop injury.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“over weedy check without any crop injury”
e1“All the weed control treatments”
t0“Maize”
Claim · model-written summary
Two hand weedings gave the highest maize grain yield.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Highest maize grain yield was recorded with two hand weedings”
t0“Maize”
Claim · model-written summary
Pre-emergence atrazine followed by hand weeding gave the highest maize grain yield.
- Treatment
- pre-emergence application of atrazine 1.5 kg/ha followed by (fb) hand weeding at 30 days after sowing (DAS)e0
- Outcome
- maize grain yielde0
- Direction
- Higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Highest maize grain yield was recorded with two hand weedings and pre-emergence application of atrazine 1.5 kg/ha followed by (fb) hand weeding at 30 days after sowing (DAS)”
t0“Maize”
Claim · model-written summary
Maize grain yield did not differ significantly among hand weeding and herbicide integration treatments.
- Treatment
- hand weeding and herbicide integratione0
- Outcome
- Maize grain yielde0
- Direction
- did not differe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maize grain yield did not differ significantly among the treatments with hand weeding and herbicide integration”
Claim · model-written summary
Two hand weedings gave the highest gross and net monetary returns and benefit:cost ratio.
- Treatment
- two hand weedingse0
- Outcome
- gross and net monetary returns and benefit: cost ratioe0
- Direction
- Higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Highest gross and net monetary returns and benefit: cost ratio were recorded with two hand weedings”
t0“Maize”
Claim · model-written summary
Pre-emergence atrazine followed by hand weeding gave the highest gross and net monetary returns and benefit:cost ratio.
- Treatment
- pre-emergence application of atrazine 1.5 kg/ha followed by (fb) hand weeding at 30 DASe0
- Outcome
- gross and net monetary returns and benefit: cost ratioe0
- Direction
- Higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Highest gross and net monetary returns and benefit: cost ratio were recorded with two hand weedings and with pre-emergence application of atrazine 1.5 kg/ha followed by (fb) hand weeding at 30 DAS”
t0“Maize”
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See all 651 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.