Abstract
Abstract Maize cultivation in Nigeria has increased rapidly in the last few years as fertilizers have become more readily available to farmers. Without the use of herbicides however, the area of land that can be brought under maize production will be limited. The following herbicides were evaluated in three ecological zones of Nigeria: atrazine and mixtures of atrazine and simazine, atrazine and metolachlor and atrazine and cyanazine. All herbicide treatments were applied at the rate of either 1.0 or 2.0 kg a.i./ha. The plots that received 1.0 kg a.i./ha also received one supplementary hand weeding. All treatments gave yields comparable to the weed free control, with the exception of the unweeded higher rate of the atrazine and cyanazine treatment which gave the lowest grain yield as a result of poor weed control.
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Claims 2
Claim · model-written summary
All herbicide treatments in maize gave yields comparable to the weed-free control.
- Treatment
- herbicide treatmentse2
- Interactor
- weede3weed
- Outcome
- yieldse3
- Direction
- comparablee3
- Comparator
- weed free controle3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“Maize cultivation in Nigeria”
e2“All herbicide treatments were applied at the rate of either 1.0 or 2.0 kg a.i./ha”
e3“All treatments gave yields comparable to the weed free control, with the exception of the unweeded higher rate of the atrazine and cyanazine treatment which gave the lowest grain yield as a result of poor weed control”
Claim · model-written summary
The unweeded higher rate of atrazine and cyanazine gave the lowest maize grain yield, due to poor weed control.
- Treatment
- unweeded higher rate of the atrazine and cyanazine treatmente3
- Interactor
- weede3weed
- Outcome
- grain yielde3
- Direction
- loweste3
- Qualifier
- as a result of poor weed controle3
- Comparator
- All treatmentse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“Maize cultivation in Nigeria”
e3“All treatments gave yields comparable to the weed free control, with the exception of the unweeded higher rate of the atrazine and cyanazine treatment which gave the lowest grain yield as a result of poor weed control”
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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.