Flame Weeding Method to Control Weeds in Faba Bean in River Nile State in Sudan

Abstract

A flame apparatus was designed and its performance in terms of weeding efficiency and economic feasibility was compared with hand weeding and herbicides application. Weeding was carried out at 4 and 4 plus 6 weeks after sowing for flaming and hand weeding. A pre-emergence herbicide Pursuit plus Stomp, was mixed in a tank and applied before one day of first irrigation at the recommended rate. The mean number of weeds over two seasons revealed that flaming at 4 weeks after sowing reduced weed density by 77.3% and 71.3% respectively, whereas for hand weeding at the same period was 80.8% and 70.3% respectively. Grain yield of the plots subjected to flame weeding was comparable to that from pre-emergence herbicides and hand weeding treated plots for both growing seasons. However, economic analysis showed that flame weeding at 4 weeks after sowing gave the highest value of marginal rate of return for both seasons.

Plamenik je bio konstruisan i ispitivan tako da su njegove karakteristike efikasnosti uništavanja korova i ekonomske isplativosti poređene sa suzbijanjem korova primenom herbicida. Tretman je izvođen 4 i 4 plus 6 nedelja posle setve, paljenjem i ručnim plevljenjem. Herbicid Pursuit plus Stomp je mešan u rezervoaru i primenjen u preporučenoj dozi jedan dan pre prvog navodnjavanja. Prosečan broj korova tokom dve sezone pokazao je da je paljenje na 4 nedelje posle setve smanjilo gustinu korova za 77.3% i 71.3% redom, dok je ručnim plevljenjem u istim periodima postignuto 80.8% i 70.3%, redom. Prinos zrna sa parcela tretiranih plamenom bio je uporediv sa prinosom sa parcela tretiranih herbicidom i ručnim plevljenjem, u obe sezone. Ipak, ekonomska analiza je pokazala da je tretiranje plamenom 4 medelje posle setve u obe sezone dalo najveću vrednost jedinične stope prinosa.