An Integrated Weed Management System (IWMS) in vegetables should be based on weed population management strategies by a sound cultural weed control methods and then on an integration of physical and chemical weed control methods. Most vegetable crops are characterised by a low plant density, a wide row distance, a slow initial growth and, as a consequence, by a poor competitive ability. Taking into consideration that most vegetables are high-income crops, the threshold weed densities are very low and the critical periods of weed competition are pretty long. IWMS in vegetables shows peculiar environmental and health concerns because of a relatively short growth cycle and the fresh edible parts of vegetables, and a coarse soil texture of the main production areas. As most vegetables are minor crops the availability of approved herbicides for use is scarce so in low-external-input farming systems leads to a strong and quick selection of the weed flora when herbicides are often used.
Il controllo della flora infestante nelle colture orticole
TEI, Francesco
2005
Abstract
An Integrated Weed Management System (IWMS) in vegetables should be based on weed population management strategies by a sound cultural weed control methods and then on an integration of physical and chemical weed control methods. Most vegetable crops are characterised by a low plant density, a wide row distance, a slow initial growth and, as a consequence, by a poor competitive ability. Taking into consideration that most vegetables are high-income crops, the threshold weed densities are very low and the critical periods of weed competition are pretty long. IWMS in vegetables shows peculiar environmental and health concerns because of a relatively short growth cycle and the fresh edible parts of vegetables, and a coarse soil texture of the main production areas. As most vegetables are minor crops the availability of approved herbicides for use is scarce so in low-external-input farming systems leads to a strong and quick selection of the weed flora when herbicides are often used.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.