【摘要】 目的:通过不同施肥水平对半夏产量、有效成分、重金属含量、等级、折干比等比较,寻找半夏栽培的最佳肥料配比。方法:田间施肥水平的比较采用L9(34)正交设计试验,总生物碱含量测定采用紫外分光光度法,重金属含量采用原子吸收法。结果:氮肥水平是影响半夏产量和质量的主要因素,磷肥次之,钾肥的影响最小。结论:半夏种植的最佳施肥组合为每平方米施纯N 25 g、P2O518 g、K2O 9 g,比例为N∶P2O5∶K2O=2.8∶2∶1,可以兼顾较高的产量和总生物碱含量。更多还原

【Abstract】 Objective:To compare the effects of the different fertilizing levels on the output,the effective element,the content of heavy-metal,the grade and the ratio of wet to dry of Pinella ternate to obtain the best fertilize ratio on the planting.Methods: The orthogonal desing method L₉（3⁴） was applied on the comparison between the different fertilization levels.The content of alkaloid was determined by UV spectrophotometer.The conten of heavy-metal was determined by atom absorption.Results: The factors that affected the output and the quality of Pinellia ternate were N>P>K.Conclusion: The best fertilizer combination is N 25 g/m²,P₂O₅ 18 g/m²,K₂O 9 g/m₂ and the application ratio is 2.8∶2∶1 for them,in which the higher output and the content of alkaloid should be obtained.更多还原