关键词: GC/MS, GC/MS, 农药残留, 综述

Abstract: Eulophia flava (Lindl.) Hook. F，one of wild orchids, which was zigzag to grow. Based on every bulb had tip bud and kryptoblast, so study on the propagation of bulb. Analysis of soil cover, nutrient component and biomass of bulb and root which plant under field and cultivation conditions, complete of stochastic region design of three factor and three rates. The result showed the bulb was plant should cover soil when was propagate new bulb. The N、P、K content in annual bulb was more than in biennial bulb, and probability to florescence was annual bulb. But the biennial bulb propagated new bulb of transverse diameter and longitudinal diameter was better than the other bulb. A new bulb was propagated which should to select the biennial bulb in production. Under a field condition kind of ball and the root nutrition ingredient content is lower than under the manual cultivation condition. No significant variance in transverse diameter and longitudinal diameter of single, double and multi-bulb to propagate new bulb, and in order to obtains the mass as soon as possible the new bulb, suitable single ball to plant.