【摘要】 利用植物生长调节剂对早熟禾、高羊茅的生长速度进行促控研究表明:返青初期,叶面喷施30～42.5mg/L赤霉素,每公顷750kg药液,可以促进生长,提早返青;叶面喷施300～600mg/L多效唑或200～400mg/kg烯效唑,每公顷750kg药液,可以控制生长,从而减少刈剪次数,喷施1次,药效可持续3个月。更多还原

【Abstract】 Effectof plantgrowth regulators on the growth of Poa pratensis‘Conni’ and Fes- tuca arundinacea‘Arid’ were studied.The result showed that 1 2 5 L / hm2 of 3 0 to 4 0 mg· kg gibberellin was advantageous to growth and turning green in eraly spring,75 0 L/ hm2 of 3 0 0 to 4 0 0 mg· kg paclobutrazol and 2 0 0 to 4 0 0 mg· kg uniconazole could inhibit growth and thereby reduced the mowing frequency.Period of validity was 3 months.更多还原