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In this study a new formulation of EPTC, the new products glyphosate and napropamide and high rates of butilate, vernolate and EPTC were tested in purple nutsedge (Cyperus rotundus L.). The slow release formulation of EPTC was more persistant than the regular EPTC. High rates (16 kgia/ha) of the ...
Some of the differences and similarities between the extension service agronomists and those of technical assistance were compared. Important differences in percent of time dedicated to weed control, sources of information and the importance that the farmers of each group assign to weed control w...
Twenty-six herbicides were evaluated at 3 rates each in cassava (Manihot esculenta Crantz). For the 21 preemergence herbicides, planting was done before application in half the plot and then in the other half. After incorporating the 5 preplant-incorporated products, half the plot was ridged befo...
Cutting sedge (Scleria pterota Presl.) is a common weed in pastures. It grows vigorously and forms patches in poorly drained soils and appears uniformly dispursed in pastures on rolling land. It is unpalatable to cattle and is extremely competitive with pasture species. It was found that both diu...
Since many farmers in the tropics plant crops in association, a study was conducted to determine the capacity of corn and edible beans (Phaseolus vulgaris) grown alone or in association to extract N, P and K. The effects of three soil types and three weed species on the absorptive capacity of the...
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