TOOLS AND TECHNIQUES
Picture A
Picture B
Figure 1 . Jar test examples . Jars in picture A contain , from left to right : fungicide , fungicide + herbicide , fungicide + herbicide + surfactant . Note the layering prior to adding a surfactant . Jars in picture B contain , from left to right : growth regulator , growth regulator after agitation , growth regulator + agitation + anti-foamer . Note the excessive foaming prior to adding the anti-foamer . Photos by Ben Pease
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