ISHS Acta Horticulturae 372: Symposium on Engineering as a Tool to reduce Pesticide Consumption and Operator Hazards in Horticulture
LOW-DOSAGE SYSTEMS WITH HERBICIDES IN CARROTS |
| Author: | D.T. Baumann |
| Keywords: | Carrots, Metoxuron, splitting, adjuvent, selectivity, period threshold |
| Abstract:
In arable farming, particularly in sugar beet cultures, a new method of herbicide application is rapidly gaining acceptance in practice. Empirical evidence suggest that up to 40 % of herbicide input can be saved when using low-dosage application systems. At the Swiss Federal Research Station for Fruit-Growing, Viticulture and Horticulture, experiments have been carried out to compare weed control efficacy and crop selectivity of low-dosage, splitting and conventional pre-and post emergence application techniques in carrots (Daucus carota L. spp. sativus). Significantly better weed control was realised by low dosage systems as compared with conventional pre-emergence application. Low dosage systems correspond better to weed control strategies based on the period threshold concept than conventional post-emergence treatments. Post-emergence treatments and particularly low-dosage systems show a favourable cost-benefit ratio, as was shown for carrots. Some constraints will also be briefly discussed. | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
