为主 ,对薯蓣根茎产量有一定的影响。本试验结合

    盾叶薯蓣在陕西省白河县的生长规律 ,在根茎生长

    盛期 ,采用氮、磷、钾三种肥料单施与配施 ,均不同程

    度地提高了盾叶薯蓣根茎产量与薯蓣皂苷元含量。

    单施氮、磷、钾肥 ,可以显著提高盾叶薯蓣根茎产量 ,但对薯蓣皂苷元的含量影响均未达到显著水平。三

    种肥料不同组合配施 ,对薯蓣皂苷元含量以氮肥影

    响最大 ,钾肥次之 ,对根茎产量则以钾肥影响最大 ,氮肥次之。综合考虑 ,建议在白河县种植基地选择

    较优的氮磷钾组合即:每亩尿素 20 kg、过磷酸钙 60

    kg、碳酸钾 10 kg。

    3

    通讯作者

    参 考 文 献

    1 周荣汉 1 中药资源学 1 北京:中国医药科技出版社 ,1995∶ 430

    2 丁志遵 ,等 1 甾体激素药源植物 1 北京:科学出版社 ,1983∶ 95

    3 徐成基 ,等 1 激素药源植物2薯蓣的栽培研究 1 中药通

    报 ,1983 ,8 (4)∶ 3

    4 周雪林 ,等 1盾叶薯蓣引种栽培研究 1 中草药 ,1989 ,20

    (10)∶ 35

    5 康阿龙 ,等 1 盾叶薯蓣引种栽培调查报告 1 中药材 ,2002 ,25 (7)∶ 465

    6 杨爱民 1 黄姜(盾叶薯蓣)高产栽培技术 1 湖北农业科

    学 ,2002 ,6∶ 91

    7 P1Vander Zaag ,et al1The phosphorus requirements of yams

    (Dioscorea spp1 ) 1 Trop1Agric1 ( Trinidad ) , 1980 , 57

    (2)∶ 97

    8 王志安 ,等 1施肥水平和种植密度对盾叶薯蓣试管苗亩

    产量和薯蓣皂苷元含量的影响 1 中国中药杂志 ,2002 ,27 (4)∶ 300

    (2004 - 04 - 21收稿

    2004 - 07 - 19修回)

    Effect of N, P, K on Rhizome Yield and Diosgenin

    Content of Dioscorea zingiberensis

    Wang Jian’ an1

    ,Xu Zenglai

    2

    ,Wu Guorong1

    ,Chen Chongming2

    , Wang Xida

    3

    , Ding Zhizun2

    ,Chen Jingyao1

    ,Shi Yunyun2

    (11College of Life Sciences ,Nanjing Normal University ,Nanjing 210097 ; 21Jiangsu Institute of Botany , Chinese Academy of Sci2

    ences ,Nanjing 210014 ; 31Jiangsu Ocean Enviromental Monitoring Center , Nanjing 210036)

    Abstract Objective :A field experiment was conducted to investigate the different effects of various a pplying ratios of nit rogen

    (N) ,potassium ( K) and phosphate (P) on diosgenin content and Rhizoma yield of Dioscorea z ingiberensis1 Method : Experiment was

    conducted with both one factor and orthogonal design , and data was analyzed statistically on SPSS 11151 Results :Compared with the

    cont rol groups ,the yield of rhizome was significantly increased by N (P < 0101) ,K(P < 0101) ,P(P < 0105) 1The content of diosgenin

    has no obvious increase (P > 0105) by individual application of N , P and K,while changed significantly (P < 0105) by the combina2

    tion of proper levels of N , P , K1 Conclusion : The degree of effect on diosgenin content was ranged with N > K> P ,while on output

    of dioscorea rhizome was K> N > P ,and the combination of N2 K1 P2 was superior to others1

    Key words Dioscorea z ingiberensis Wright ;Applying ratios of NPK combined ;Diosgenin content ;Rhizome yield

    山麦冬组织培养技术的研究

    林美爱 程东庆 丁志山 陈宜涛 潘佩蕾

    (浙江中医学院生命科学系 ,杭州 310053)

    摘要 目的:研究山麦冬的组织培养技术 ......