不同施肥配比对灯盏花产量和灯盏乙素含量的影响*

 应用L₉（3⁴）正交设计对不同施肥配比下灯盏花进行大田试验,观测了其生长情况、产量和灯盏乙素含量。结果表明：N,P,K三个因素对灯盏花产量影响的主次关系为K＞N＞P,其最佳组合为N₂P₃K₃,比例为N∶P∶K=3∶2∶1;对灯盏乙素含量影响的主次关系为N＞P＞K,最佳组合为N₃P₃K₃,比例为N∶P∶K=4∶2∶1;公顷含灯盏乙素量的主次关系为K＞P＞N,N₂P₃K₃是最佳组合,比例为N∶P∶K=3∶2∶1。在灯盏花栽培中,增施氮肥,适当施用磷肥,控制钾肥施用量能提高其产量和灯盏乙素含量。

Effects on Yield and Brevicapine Content of Erigeron breviscapus under Different Fertilizer Rate

Through experiment of L₉（3⁴）under different fertilizer rate,Growth, yield, and breviscapine content of Erigeron breviscapus (Vant.)Hand.-Mazz. were determined. The results showed: effect sequence on yield of Erigeron breviscapus for N, P, and K is K＞N＞P, and the best compose is N₂P₃K₃, rate is N∶P∶K=3∶2∶1;effect sequence on breviscapine of Erigeron breviscapus for N, P, and K is N＞P＞K, and the best compose is N₃P₃K₃, rate is N∶P∶K=4∶2∶1;effect sequence on breviscapine content perhectare of Erigeron breviscapus for N, P, and K is K＞P＞N, and the best compose is N₂P₃K₃, rate is N∶P∶K=3∶2∶1. In Erigeron breviscapus culture, increasing N quantity, moderate P quantity, and reducing K quantity can improve yield and breviscapine content of Erigeron breviscapus.