10.8%含量的盖草能除草剂对杨树幼苗的影响

Effects of 10.8% Content of Grass Cover Herbicide on Poplar Seedlings

盖草能是一种具有选择性杀灭有害草类的除草剂,通过对一年生杨树扦插苗喷洒3种不同浓度的盖草能除草剂,测定不同处理下的地径、苗高、叶绿素含量、光合值等指标并对其进行分析研究。试验结果表明:盖草能除草剂在1.6 m L/L和0.8 m L/L条件下不会对杨树幼苗生长造成影响,但在3.2 m L/L时,会显著抑制杨树幼苗的生长发育。

Haloxyfop is a herbicide that selectively kills harmful grasses. In this experiment, three different concentrations of grass cover herbicides were used to weed the annual poplar cuttings, so as to determine and analyze the data under different diameter, seedling height, chlorophyll content, and light value of photosynthesis. Test results showed as follows： the concentration of herbicides used under 1.6 m L/L and 0.8 m L/L would not affect the growth of poplar seedlings. However, under the 3.2 m L/L concentration, the growth and development of poplar seedlings were significantly inhibited.