This graph plots three data sets. On the Y
axis is the number of nematodes per millilitre, from 50- to 250. On the X axis
is the sample number, from 1 to 10. In the first trial, denoted by blue circles,
10 samples were taken at ten minute intervals, making each tick on the X axis
10 minutes each for that trial. Nematode concentration slopes positively, dropping
about 40% from an initial 210 nematodes per millilitre to about 150 nematodes
per millilitre. In this trial, no tank-rinse was used. The second data set, denoted
by red squares, also slopes positively by about 15% from about 175 nematodes per
millilitre to about 145 nematodes per millilitre. In this case, samples were taken
every minute and no tank-rinse was used. In the final data set, denoted by green
triangles, the slope is only slightly positive, dropping by only 5%. In this case,
the tank rinse was operational, and had a statistically significant impact by
maintaining nematode concentration throughout the 10 minute spray application.
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