Flame and mechanical cultivation for weed control
1996
Rifai, M.N. (Nova Scotia Agricultural College, Truro (Canada)) | Zikla, T. | Mojzis, M.
Flaming cultivation would not be very competitive in areas where herbicides and conventional cultivation give satisfactory control of weeds. Chemicals gave the most effective weed control and the highest yield data due to their selectivity and ability to move throughout the weed to control its underground portions as well as its above-ground parts. Flaming should be considered as a preventive method, and weeds should be controlled as soon as they appear in the crop. Flaming weeds without crop damage becomes increasingly difficult as the weeds grow larger and together. Nor should flaming be considered a cure-all for every crop. Its most promising use may be as a supplement to herbicides or mechanical cultivation for better weed control. The number of weeds and the amount of time required for hand weeding, while flaming in onions and carrots trials, were the lowest with working speed of 3 km/h. Field experiments were conducted to determine the effect of wind speed on temperature of the burners. The patterns for 1, 2 and 2.5 bar pressure were compared. The data indicate that the best heat distribution was at a pressure of 2.5 bar.
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