[The Cyperus rotundus, a weed hard to beat [Italy]]

ammonium sulphate chemical control choix de la date controllo integrato cyperus rotundus diserbo diserbo meccanico ditch cleaning erbicidi escarda herbicidas herbicide herbicides integrated control irrigation irrigazione italia italie italy limpieza de zanjas lucha integrada lutte chimique malezas mauvaise herbe piante infestanti plant growth substances riego scelta dell'epoca solfato ammonico sulfate d'ammonium sulfato de amonio sustancias de crecimiento vegetal timing weed control weeding weeds