Authors :
Atu Obinna A; Ozigbo Emmanuel S; Adunoye Francis O; Murphy Kayode M
Volume/Issue :
Volume 5 - 2020, Issue 6 - June
Google Scholar :
http://bitly.ws/9nMw
Scribd :
https://bit.ly/2YXOOJW
Abstract :
This work investigates the effect of the
chemical weed control techniques on the growth and
yield of the maize at International Institute of Tropical
Agricultural, Ibadan, Oyo State, Nigeria. The
experimental design was 3 x 5 factorial in a randomized
complete block design (RCBD) with three (3)
replications. The treatments were administered to five
weed control techniques (Pendimethalin at 2.0kg/ha +
Atrazine at 2.0kg/ha, pendimethalin at 1.5kg/ha +
Atrazine at 1.5kg/ha, pendimethalin at 1.5kg/ha +
Atrazine + supplement hoe weeding, manual weeding at
3, 6 and 9 WAP and weedy check). The statistical
analysis was carried out using SPSS and the result
obtained showed that weed density, growth and yield
related traits of maize were significantly affected by
different treatments at P<0.05. From the study, the
maize plants were observed to have similar plant
heights and number of leaves throughout the period of
measurement. Maize grown in the weedy check plots
were observed to have reduced plant height, number of
leaves, stem girth and leave area. The fresh, dry cob
weight and cob length were also reduced in maize
grown in weedy check plots which resulted in lower
grain yield (0.53 t/ha). Pendimethalin at 2.0kg/ha +
Atrazine at 2.0kg/ha, pendimethalin at 1.5kg/ha +
Atrazine at 1.5kg/ha, pendimethalin at 1.5kg/ha +
Atrazine at 1.5kg/ha + supplement hoe weeding at 6
WAP produced optimum yield more than manual
weeding at 3, 6 and 9 WAP and weedy check. It can be
concluded that the use of chemicals in these
combinations to control weeds increases crop
productivity in maize production.
Keywords :
Chemical, Weed, Technique, Productivity and Maize.
This work investigates the effect of the
chemical weed control techniques on the growth and
yield of the maize at International Institute of Tropical
Agricultural, Ibadan, Oyo State, Nigeria. The
experimental design was 3 x 5 factorial in a randomized
complete block design (RCBD) with three (3)
replications. The treatments were administered to five
weed control techniques (Pendimethalin at 2.0kg/ha +
Atrazine at 2.0kg/ha, pendimethalin at 1.5kg/ha +
Atrazine at 1.5kg/ha, pendimethalin at 1.5kg/ha +
Atrazine + supplement hoe weeding, manual weeding at
3, 6 and 9 WAP and weedy check). The statistical
analysis was carried out using SPSS and the result
obtained showed that weed density, growth and yield
related traits of maize were significantly affected by
different treatments at P<0.05. From the study, the
maize plants were observed to have similar plant
heights and number of leaves throughout the period of
measurement. Maize grown in the weedy check plots
were observed to have reduced plant height, number of
leaves, stem girth and leave area. The fresh, dry cob
weight and cob length were also reduced in maize
grown in weedy check plots which resulted in lower
grain yield (0.53 t/ha). Pendimethalin at 2.0kg/ha +
Atrazine at 2.0kg/ha, pendimethalin at 1.5kg/ha +
Atrazine at 1.5kg/ha, pendimethalin at 1.5kg/ha +
Atrazine at 1.5kg/ha + supplement hoe weeding at 6
WAP produced optimum yield more than manual
weeding at 3, 6 and 9 WAP and weedy check. It can be
concluded that the use of chemicals in these
combinations to control weeds increases crop
productivity in maize production.
Keywords :
Chemical, Weed, Technique, Productivity and Maize.
