Abstract
A study was conducted in 2009 at the Teaching and Research Farm of the Department of Agronomy, Delta State University, Asaba Campus with the aim of evaluating the effects of time of planting of sweet potato for the control of weeds in maize. The treatments were planting of sweet potato and maize on the same day, planting of sweet potato two weeks before maize planting sweet potato two weeks after maize and planting of sole maize. Generally, the results showed that the performance of maize (planted two weeks before sweet potato) in terms of plant height, leaf area, number of leaves, days to 50% taselling, number of grains / cob, number of rows/cob, 1000 grain weight and dry grain yield/plot was significantly higher compared to the other treatment (planting of sweet potato two weeks before maize planting sweet potato two weeks after maize and planting of sole maize) hence planting of sweet potato two weeks before maize should be recommended to farmers in Asaba agro ecological zone and its environs.
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Claims 5
Claim · model-written summary
Maize planted two weeks before sweet potato had significantly higher plant height, leaf area and number of leaves than the other treatments.
- Treatment
- planted two weeks before sweet potatoe0
- Outcome
- plant height, leaf area, number of leavese1
- Direction
- highere2
- Comparator
- the other treatmente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“maize (planted two weeks before sweet potato)”
e1“plant height, leaf area, number of leaves”
e2“was significantly higher compared to the other treatment”
Claim · model-written summary
Maize planted two weeks before sweet potato took significantly more days to 50% tasselling than the other treatments, as stated.
- Treatment
- planted two weeks before sweet potatoe0
- Outcome
- days to 50% tasellinge1
- Direction
- highere2
- Comparator
- the other treatmente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“maize (planted two weeks before sweet potato)”
e1“days to 50% taselling”
e2“was significantly higher compared to the other treatment”
Claim · model-written summary
Maize planted two weeks before sweet potato had significantly higher number of grains per cob and rows per cob than the other treatments.
- Treatment
- planted two weeks before sweet potatoe0
- Outcome
- number of grains / cob, number of rows/cobe1
- Direction
- highere2
- Comparator
- the other treatmente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“maize (planted two weeks before sweet potato)”
e1“number of grains / cob, number of rows/cob”
e2“was significantly higher compared to the other treatment”
Claim · model-written summary
Maize planted two weeks before sweet potato had significantly higher 1000 grain weight and dry grain yield per plot than the other treatments.
- Treatment
- planted two weeks before sweet potatoe0
- Outcome
- 1000 grain weight and dry grain yield/plote1
- Direction
- highere2
- Comparator
- the other treatmente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“maize (planted two weeks before sweet potato)”
e1“1000 grain weight and dry grain yield/plot”
e2“was significantly higher compared to the other treatment”
Claim · model-written summary
The authors recommend planting sweet potato two weeks before maize to farmers in the Asaba agro ecological zone and its environs.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“planting of sweet potato two weeks before maize should be recommended to farmers in Asaba agro ecological zone”
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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.