The effect of two
herbicides, Glyphosate and Multrazine on the abundance and diversity of soil
microarthropods (Mites and Collembolans) was assessed in a field experiment
conducted from August to December, 2011 at the University of Port Harcourt,
Nigeria.
The herbicides were
applied at varying doses of low (1.4 ml/m2
active ingredient; a.i, standard (2.8 ml/m2 a.i) and high (5.6 ml/m2 a.i) for
Glyphosate; and low (2.1 ml/m2 a.i), standard (4.2 ml/m2 a.i) and high (8.4
ml/m2 a.i) for Multrazine; and control was included.
The experiment
was conducted in a split-plot design with six replicates arranged in a
Randomized Complete Block Design. Moist soil samples were randomly collected
from treated and control plots at the depths of 0-5 cm, 5-10 cm, 10-15 cm, and
15-20 cm, with an 8.5 cm2 diameter bucket-type auger.
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