ABSTRACT
Residue
of some of herbicides in oil palm cropping systems might have negative effects
on some arable crops intercropped within the palm inter-rows.The study
determined the residual effect of Indaziflam herbicide on some common arable crops,
the relative persistence of varied concentration of Indaziflam in the soil and
the effect of applied Indaziflam on weed seed bank. This is with a view to
providing information on effecting proper weed management strategies in oil
palm cropping systems. The experiments were carried at the greenhouse and field
of Nigeria Institute for oil palm (NIFOR) Benin – City Edo State for two years
cropping season 2016 and 2017. The experiments were conducted in a completely
randomized design in three replicates. Experiment one consisted of Indaziflam
concentrations of (0.000 , 0.0045,
0.0090, 0.0135, 0.0180, 0.029,
0.0315, 0.0360, 0.0360, and 0.045
kg a.i ha-1) and five
separate times of soil sampling for growing maize, cucumber, melon and tomato.
While experiment two consisted of untreated plot as control, glyphosate applied
at 1.5 kg a.i ha-1, tank mixture of glyphosate plus diuron at 2.0 kg
a.i ha-1+ 1.5kg a.i ha-1, glyphosate followed by
Indaziflam ten days later at 1.5kg a.i ha-1+ 0.04 kg a.i ha-1,
glyphosate followed by Indaziflam ten days later at 1.5 kg a.i ha-1+0.05
kg a.i ha-1, tank mixture of glyphosate plus Indaziflam at 1.5 kg
a.i ha-1+0.04kg a.i ha-1, tank mixture of glyphosate plus
Indaziflam at 1.5kg a.i ha-1+0.05kg a.i ha-1, indaziflam
at 0.05 kg a.i ha-1 Indaziflam at 0.045kg a.i ha-1as
herbicides treated plots and five separate times of soil sampling for growing
maize, cucumber, melon and tomato. In the last experiment, soil samples were
collected from the herbicides treated plot and placed in screen house for soil
seed bank study.The results show that maize, cucumber, melon and tomato dry
weight loss decreased as the soil samples time for application of indaziflam
increased from 0-4 weeks . Germination of maize, cucumber, melon and tomato
increased as the time of soil sampling after herbicide application increased
from 0 - 16 weeks. Weed seed emergence was highest in the control plot and
higher in glyphosate treated plot, but lower at 0 weeks of soil sampling after
herbicide application with weed density of 100 m-2 at 16 weeks of
applied herbicides . In plots treated with tank mixture of glyphosate plus
diuron, weed seed emergence density was between 5 m-2 and 7 m-2
at 0 weeks of soil sampling and was 100 m-2 and 120m-2
respectively at 16 weeks of soil sampling. In other plots where Indaziflam was
tank mixed with glyphosate, used singly or applied ten days after glyphosate
treatment had lower weed density up to 16 weeks of soil sampling after
herbicide application. In conclusion indaziflam affect the height and dry
weight of maize, melon, cucumber, and tomato till 12 weeks after herbicide
application. However, the period of 16 weeks has to lapse before intercropping
maize, melon, and cucumber in oil palm farm.
CELESTINA, O (2022). Assessment Of Persistence And Residual Activity Of Indaziflam Used In Weed Control In An Oil Palm Plantation At Nigeria Institute For Oil Palm Research Benin – City Edo State . Mouau.afribary.org: Retrieved Dec 24, 2024, from https://repository.mouau.edu.ng/work/view/assessment-of-persistence-and-residual-activity-of-indaziflam-used-in-weed-control-in-an-oil-palm-plantation-at-nigeria-institute-for-oil-palm-research-benin-city-edo-state-7-2
OGOCHUKWU, CELESTINA. "Assessment Of Persistence And Residual Activity Of Indaziflam Used In Weed Control In An Oil Palm Plantation At Nigeria Institute For Oil Palm Research Benin – City Edo State " Mouau.afribary.org. Mouau.afribary.org, 17 Oct. 2022, https://repository.mouau.edu.ng/work/view/assessment-of-persistence-and-residual-activity-of-indaziflam-used-in-weed-control-in-an-oil-palm-plantation-at-nigeria-institute-for-oil-palm-research-benin-city-edo-state-7-2. Accessed 24 Dec. 2024.
OGOCHUKWU, CELESTINA. "Assessment Of Persistence And Residual Activity Of Indaziflam Used In Weed Control In An Oil Palm Plantation At Nigeria Institute For Oil Palm Research Benin – City Edo State ". Mouau.afribary.org, Mouau.afribary.org, 17 Oct. 2022. Web. 24 Dec. 2024. < https://repository.mouau.edu.ng/work/view/assessment-of-persistence-and-residual-activity-of-indaziflam-used-in-weed-control-in-an-oil-palm-plantation-at-nigeria-institute-for-oil-palm-research-benin-city-edo-state-7-2 >.
OGOCHUKWU, CELESTINA. "Assessment Of Persistence And Residual Activity Of Indaziflam Used In Weed Control In An Oil Palm Plantation At Nigeria Institute For Oil Palm Research Benin – City Edo State " Mouau.afribary.org (2022). Accessed 24 Dec. 2024. https://repository.mouau.edu.ng/work/view/assessment-of-persistence-and-residual-activity-of-indaziflam-used-in-weed-control-in-an-oil-palm-plantation-at-nigeria-institute-for-oil-palm-research-benin-city-edo-state-7-2