摘要
上海地区狗牙根自４月上旬始苗，４月中旬～５月达高峰，１１月后地上部分陆续枯死。地下根茎发芽温度在１０～４６℃，以３０～４０℃为适宜，土壤含水量为１５％～２０％、土深０～３ｃｍ时生长最快，耐旱、耐涝性强，对光有敏感性。可与麦轮作或用１５％稳杀得乳油于狗牙根株高０～５ｃｍ时进行化学防治。
The germination of Cynodon dactylon in Shanghai region,begins in the early of April and culminates from the middle of April to May.Flowering occurs in September. The temperature for rhizome shooting ranges between 10 and 46℃ with the optimun at 30-40℃Rhizome is good germination when the range of water content is 15-20% and the range of soil depth is 0～3cm. The rhizome is very capable in drought resistance and drowning resistance,and has sensitive to light.The application offluazifop-butyl during 0～5cm of weeds at 0.75 per hectare could control Cynodon dactylon crop has also an efficiency of weed control.
关键词
狗牙根
地下根茎
防治
生物学特性
Cynodon dactylon
Rhizome
Environmental factors
Control
