施肥对益母草生长、土壤酶活性及水苏碱含量的影响  

Effects of fertilization treatments on soil enzyme activities,seedling growth and stachydrine contents of Leonurus japonicus Houtt.

作　　者：张燕[1] 李国雷[2] 王文全[1] 刘勇[2] 谢军波[1] 侯富强[3] 许永新[3] 

机构地区：[1]北京中医药大学中药学院,北京100102 [2]北京林业大学资源与环境学院,北京100083 [3]北京市农业局农业技术推广站,北京100029

出　　处：《南京农业大学学报》2007年第2期78-82,共5页Journal of Nanjing Agricultural University

基　　金：国家发改委北京中药材良种选育基地建设系统工程(8);北京市自然科学基金课题(6042021)

摘　　要：通过盆栽试验研究了氮磷钾肥对益母草生长发育、根系土壤酶活性及水苏碱含量的影响。结果表明,益母草各项土壤酶活性、生长指标及水苏碱含量基本上为复肥型高于单肥型,复肥型中又以营养平衡型大于营养失调型,但单施氮肥对以上各项指标均有很大促进作用。在复肥型中,磷元素与氮元素的合理配施可以提高氮的肥效。以益母草株高、叶片数、产量及水苏碱含量为评价标准,根据氮磷钾二次肥料数学模型的计算结果,确定益母草的合理需氮量为0.32-0.42 g.kg-1,需磷量为0.22-0.29 g.kg-1,需钾量为0.09-0.12 g.kg-1,氮、磷、钾最佳配比为3∶2∶1(质量比)。Pot experiments were carried out to study the effects of fertilization treatments on seedling growth, soil enzyme activities and stachydrine contents of Leonurus japonicus Houtt.. The results obtained are listed as follows. The growth, soil enzyme activities and stachydrine content of Leonurus japonicus Houtt. in complex fertilization treatments were better than those in single element fertilization treatment. In complex fertilization treatments, nutrition balance types were better than maladjustment type. However, nitrogen fertilizer played a great role in promoting the above indexes. In complex fertilization treatments, reasonably fertilizing phosphorus could improve the fertilizing efficiency of nitrogen. According to results of fertilization mathematic model, the optimum fertilization dosages should be primarily defined as N 0. 32 -0. 42 g· kg^-1 , P 0. 22 -0.29 g· kg^-1 , K 0. 09 -0. 12g· kg^-1 , the ootimum fertilization dosage ratio was 3： 2： 1.

关 键 词：益母草 施肥 生长 土壤酶活性 水苏碱 

分 类 号：S567[农业科学—中草药栽培]