摘要
目的:在大田条件下,研究不同施肥水平对川半夏产量和主要有效成分的影响,为川半夏标准化栽培提供依据。方法:选取来自川半夏主产区的野生半夏居群作为试验材料,采用3因素5水平L25(56)正交表设计田间试验,3次重复。生长期间定期考察各小区出苗,抽薹和开花情况;采收后计算其单株增重率和单株增殖率,并取样测定其生物碱,β-谷甾醇的含量。结果:不同施肥水平下川半夏出苗、珠芽产生和抽薹等生长节律基本一致。但生长期间平均出苗数间差异达显著水平(P<0.05),而平均抽薹数、平均珠芽产生数、单株增重率、单株增殖率、β-谷甾醇以及生物碱含量间差异则达极显著水平(P<0.01)。各施肥因子及因子间互作对β-谷甾醇含量无显著影响,但对其他指标均有影响。结论:川半夏生产栽培中最佳施肥组合为每公顷施N,P2O5,K2O为315,225,270 kg,建议在生产上采用。
Objective ： The effect of the different fertilizing levels on yields and main active components of PineUia ternata from Sichuan was studied under the cultivated condition, in order to provide theoretical basis for the standardized cultivation. Method： Using one of the wild populations of P. ternate from Sichuan as tested material, the experiment was performed with orthogonal designing methods L25（5^3）. During growth and development period, agronomic traits such as number of sprouting, inflorescence and bulblets were counted. After harvesting, main chemical compositions, growth and proliferation rates were determined. Result： In different fertilizing levels, the P. ternata from Sichuan showed the same growth rhythm, though there were significant difference （ P 〈 0.05 ） among the average emergence rate,whereas extremely significant difference （P 〈0.01 ） were detected among the average ratio of bolting, the average bulbils, individual growth rate, individual proliferation rate,β-sitosterol and alkaloid content under different fertilizing levels. Nitrogenous fertilizer that affected the content of alkaloids and β-sitosterol were extremely significant （ P 〈 0.01 ）, whereas phosphate and potassium fertilizer had no significant effect. The effect of fertilizer factor and inter effects on β-sitosterol showed no significant effect, but have influence on other indexes. Conclusion： The optimum fertilizer composition was 315 kg · hm^-2 of nitrogen, 225 kg·hm^-2 of P2O5 and 270kg·hm^-2 of K2O.
出处
《中国中药杂志》
CAS
CSCD
北大核心
2011年第8期963-967,共5页
China Journal of Chinese Materia Medica
基金
国家科技支撑计划项目(2006BAI06A11-10)
关键词
川半夏
施肥
产量
有效成分
Pinellia ternata from Sichuan
fertilization
yield
efficiency components
