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Abstract
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Article Information:
The Impact of Four Herbicides on Soil Minerals
A. Sebiomo, V.W. Ogundero and S.A. Bankole
Corresponding Author: Sebiomo Adewole
Submitted: February 14, 2012
Accepted: June 10, 2012
Published: June 30, 2012 |
Abstract:
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The aim of this study was to investigate the interaction of atrazine, primextra, paraquat and
glyphosate with soil minerals. The treatments were carried out for a period of 6 weeks; at company
recommended rates of 4l/h (at 350 mL in 15 L sprayer) for paraquat, glyphosate and primeextra while
recommended rate of 3 kg/h (atrazine powder) was used for atrazine treatment (soil treatments were carried
out in triplicates). Soil moisture content was determined using Satorious Moisture content Analyser. Soil
mineral concentration were then determined by injecting sample solutions (extract) and standard solution
for each mineral into the atomic absorption spectrophotometer into sample fray and the mean signal
response was recorded for each of the element at their respective wavelength. The concentrations of the
minerals were then calculated. Herbicide treated soils showed reduction in the moisture content from the
second to the sixth weeks of treatment. There was significant (p<0.001) reduction in Sodium ion (Na) and
Calcium ion (Ca) concentration compared to the control. The potassium, Magnesium, Iron and Zinc (K,
Mg, Fe and Zn) increased significantly (p<0.001) compared to the control. Ths study has elucidated the
ability of herbicides to chelate with soil minerals thereby reducing their availability for uptake by plants. It
has also been shown that soil minerals are utilised by plants and microbes during microbial degradation.
Key words: Calcium, concentration, herbicide, iron, magnesium, potassium, zinc
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Cite this Reference:
A. Sebiomo, V.W. Ogundero and S.A. Bankole, . The Impact of Four Herbicides on Soil Minerals. Research Journal of Environmental and Earth Sciences, (06): 617-624.
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ISSN (Online): 2041-0492
ISSN (Print): 2041-0484 |
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