Study on the Technology for Eliminating Weeds on Forest Land by Chemical Herbicides

Technology on how to use herbicides, such as 41% Roundup and 25% Velpar to eliminate weeds on forest land was studied through low and ultra-low volume spray. The size of spray-plate is 0.7mm and 1.0mm. This kind of technology can be used in regenerated forest after logging, tending in young stands, reform of bamboo groves and preservation of fire-preventing lines and it can save the cost for 70%, save the manual labour for 80%. The extension area in over 40 production units in Guangdong Province has reached over 1 333 ha.