Abstract
A field experiment was conducted during rainy (Kharif) season of 2005 and 2006 at Agronomy Research farm, Kumarganj, Faizabad, Uttar Pradesh to study the effect of weed management on weeds and yield of maize under rainfed condition. None of the pre-emergence herbicides alone provided desired control of weeds. However, inclusion of one hand weeding at 30 DAS with pre-emergence herbicides markedly improved weed control efficiency (WCE), yield attributes, grain and stover yield, nitrogen uptake and soil moisture retention. Two hand weedings at 20 and 40 DAS proved most effective in controlling weeds (WCE 66.2%) followed by alachlor @ 2.0 kg a.i./ha + HW at 30 DAS. Significantly highest grain and stover yield, nitrogen uptake and protein yield were recorded under weed free treatment followed by two hand weedings at 20 and 40 DAS and alachlor @ 2.0 kg a.i./ha + HW at 30 DAS. Lowest moisture depletion was recorded under weed free treatment followed by two hand weedings at 20 and 40 DAS. The total water use from root zone was not affected significantly by different weed management practices.
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Claims 9
Claim · model-written summary
Pre-emergence herbicides alone did not provide desired weed control.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“None of the pre-emergence herbicides alone provided desired control of weeds”
t0“maize”
Claim · model-written summary
Adding hand weeding to herbicides improved weed control efficiency.
- Treatment
- one hand weeding at 30 DAS with pre-emergence herbicidese0
- Outcome
- weed control efficiency (WCE)e0
- Direction
- improvede0
- Comparator
- pre-emergence herbicidese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inclusion of one hand weeding at 30 DAS with pre-emergence herbicides markedly improved weed control efficiency (WCE)”
e2“pre-emergence herbicides alone”
t0“Integrated Weed Management in Maize (Zea mays) under Rainfed Conditions”
Claim · model-written summary
Adding hand weeding improved yield attributes and grain and stover yield.
- Treatment
- one hand weeding at 30 DAS with pre-emergence herbicidese0
- Outcome
- yield attributes, grain and stover yielde0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inclusion of one hand weeding at 30 DAS with pre-emergence herbicides markedly improved weed control efficiency (WCE), yield attributes, grain and stover yield, nitrogen uptake and soil moisture retention”
t0“maize”
Claim · model-written summary
Adding hand weeding improved nitrogen uptake and soil moisture retention.
- Treatment
- one hand weeding at 30 DAS with pre-emergence herbicidese0
- Outcome
- nitrogen uptake and soil moisture retentione0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inclusion of one hand weeding at 30 DAS with pre-emergence herbicides markedly improved weed control efficiency (WCE), yield attributes, grain and stover yield, nitrogen uptake and soil moisture retention”
t0“maize”
Claim · model-written summary
Two hand weedings gave the greatest weed control efficiency, 66.2%.
- Treatment
- Two hand weedings at 20 and 40 DASe0
- Outcome
- WCEe0
- Direction
- most effectivee0
- Value
- 66.2%e0
- Comparator
- alachlor @ 2.0 kg a.i./ha + HW at 30 DASe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two hand weedings at 20 and 40 DAS proved most effective in controlling weeds (WCE 66.2%) followed by alachlor @ 2.0 kg a.i./ha + HW at 30 DAS”
t0“maize”
Claim · model-written summary
Weed-free treatment produced the highest grain and stover yields.
- Treatment
- weed free treatmente0
- Outcome
- grain and stover yielde0
- Direction
- higheste0
- Comparator
- two hand weedings at 20 and 40 DASe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significantly highest grain and stover yield, nitrogen uptake and protein yield were recorded under weed free treatment followed by two hand weedings at 20 and 40 DAS and alachlor @ 2.0 kg a.i./ha + HW at 30 DAS”
t0“maize”
Claim · model-written summary
Weed-free treatment produced the highest nitrogen uptake and protein yield.
- Treatment
- weed free treatmente0
- Outcome
- nitrogen uptake and protein yielde0
- Direction
- higheste0
- Comparator
- two hand weedings at 20 and 40 DASe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significantly highest grain and stover yield, nitrogen uptake and protein yield were recorded under weed free treatment followed by two hand weedings at 20 and 40 DAS and alachlor @ 2.0 kg a.i./ha + HW at 30 DAS”
t0“maize”
Claim · model-written summary
Weed-free treatment had the lowest moisture depletion.
- Treatment
- weed free treatmente0
- Outcome
- moisture depletione0
- Direction
- Loweste0
- Comparator
- two hand weedings at 20 and 40 DASe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lowest moisture depletion was recorded under weed free treatment followed by two hand weedings at 20 and 40 DAS”
t0“maize”
Claim · model-written summary
Weed management practices did not significantly affect root-zone water use.
- Treatment
- different weed management practicese0
- Outcome
- total water use from root zonee0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The total water use from root zone was not affected significantly by different weed management practices”
t0“maize”
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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.