Olagbemi Peter AFON
Ladoke Akintola University of Technology, Department of Crop and
Environmental Protection Ogbomoso Oyo State – Nigeria
Oluwakemi Olajumoke AJAYI
Ladoke Akintola University of Technology, Department of Crop and
Environmental Protection Ogbomoso Oyo State – Nigeria
Adesike Oladoyin OLAYINKA
Ladoke Akintola University of Technology, Department of Crop Production
and Soil Science Ogbomoso Oyo State – Nigeria
Emmanuel Ajibola OLAGUNJU
Ladoke Akintola University of Technology, Department of Crop and
Environmental Protection Ogbomoso Oyo State – Nigeria
Gabriel Olulakin ADESINA
Ladoke Akintola University of Technology, Department of Crop and
Environmental Protection Ogbomoso Oyo State – Nigeria
https://doi.org/10.47743/jpd.2024.31.1.960
Keywords: maize, maize yield parameters, weed
control strategies, weed parameters.
Abstract: Maize is the second most cultivated
crop in Nigeria in terms of hectares of land. In the world it
ranks fourth amongst cultivated cereals. However, its cultivation
is faced with different challenges ranging from biotic to abiotic
factors. Weeds are one of the biotic factors that threaten maize
yield.in the field because of the cost and labor associated with
it control. Hence, using Randomized Complete block Design, a two-year
study was carried out to assess different strategies that are
used in controlling weeds in the derived savanna agroecological
zone of Nigeria at Ogbomoso Girls High School, Ogbomoso (8°9'N,
4°15'E) and Surulere North LCDA Igbon (8°14'N, 4°18'E).
The total land area used was 13 m x 23 m with plot size 2 m x
3 m in three replicates. Eight treatments were used which are
weedy plots, weed free, manual I, manual II, Pre-emergence herbicide
(Glyphosate-1.08 kg a.i ha-1), Post-emergence herbicide
(Nicrosulfuron- 0.12 kg a.i ha-1), Cowpea+Maize and
Potato+Maize) to give 24 plots. Data collected were on weed parameters
and maize yield. Weed parameters include: weed population, dry
weed biomass and weed control ratio at 3, 6 and 9 weeks after
sowing. Parameters on maize yield include number of seeds per
cob, grain weight of seeds per cob, cob length, weight of 100
seeds per plot, grain weight per plot and grain weight per hectare.
The result on weed parameters shows that there is no significant
difference in the weed control rating and the dry weed biomass
of manual weeding, pre-emergence herbicide, post emergence herbicide,
cowpea+ maize, and potato + maize. Though there was significant
difference in the weed population among the treatments. For maize
yield (GWH), there was no significant difference between Manual
II and the use of post emergence herbicide. Also the yield obtained
from pre-emergence herbicide, potato+maize, cowpea+maize were
not significantly different. Hence, it is recommended that legumes
and potatoes can be used rotationally to control weeds in maize
plots.
How to cite this article:
AFON O. P., AJAYI O. O., OLAYINKA A. O., OLAGUNJU E. A. &
ADESINA G. O. 2024. Assessing different strategies for controlling
weeds in maize cultivation within the derived savanna agro-ecology
in Nigeria. J. Plant Develop. 31: 105-115
https://doi.org/10.47743/jpd.2024.31.1.960
[PDF]
