不同钾肥用量对2年生宽叶羌活生物量·药材产量及品质的
影响
田丰;李永平;余科贤;李福安;李宗仁;申茂礼;王有庆;王祖训
【期刊名称】《安徽农业科学》 【年(卷),期】2011(039)002
【摘要】[Objective]The aim was to study the effect of K fertilizer on the biomass,medicine yield and quality of Notopterygiumforbesii de Boil. so as to provide scientific references for the fertilizer application of its artificial plantation. [ Method]The randomized bilk design of single factor and six levels was adopted in Duoba Town of Xinｉng to conduct the K fertilizer application test, six K application levels were 0,37.5,75. O,112.5,150.0 and 187.5 kg/hm2 respectively. [ Result ] K application amount had no significant impact on the plant height and number of compound leaves of Notopterygiumforbesii de Boiss;but promoted the diameter of its rhizome,the nｕnber of its lateral roots,the dry weight of its aboveground part ,the root length ,maximum leaf length ,maximum leaf width and the dry weight of its roots;75 kg/hm2 of K fertilization played the geatest role in promoting the number of lateral roots; the diameter of rooｔs and stem as well as the dry weight of the aboveground part were significantly promoted by 112.5 kg/hm2 of K fertilization;with the increase of k fertilization amount ,the yield of roots and the content of volatile oil and alcohol extract in Notopterygium
不同钾肥用量对2年生宽叶羌活生物量·药材产量及品质的影响
