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Experiments on the biological consequences of differences in pesticide distribution include testing differences in application equipment, differences in formulation, and more direct tests of the influence of droplet size, droplet number, or application volume on efficacy for insecticides, herbicides, or fungicides applied as atomized sprays. While these tests have been conducted for at least 60 years,...
Chemical control of weeds in seedbed sown onion (Allium cepa L. cv. Geza 20) and the effect of different herbicides on onion seedlings and weed growth were investigated in two field experiments conducted at the central Jordan Valley during the 1998/1999 growing season. Weed competition reduced average onion fresh yield by 62% compared with the weed-free control. Out of 14 herbicides tested in 16 treatments,...
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