密度、基肥、追肥对菊芋产量的影响

Effects of density and base fertilizer and topdressing on the tuber yield of Jerusalem artichoke

为了探索出内蒙古盐碱地种植菊芋最适宜的密度及施肥量,通过三因素随机区组试验,研究了密度、基肥、追肥对菊芋产量的影响。经方差分析表明:单因素间的产量差异和多因素互作间的产量差异都达到极显著水平,产量互作的大小次序为:密度>追肥>密度×基肥×追肥>基肥×追肥>密度×追肥>基肥>密度×基肥。互作效应结果分析表明,产量构成因素产量最高组合是:密度27 795株/hm^2、基肥600 kg/hm^2、追肥300 kg/hm^2的互作最好,其单产为61 377 kg/hm^2,该试验研究为今后菊芋生产搭配组合提供科学依据。

In order to definite the suitable planting density and fertilizer of Jerusalem artichoke in saline and alkaline area of Inner Mongolia, an experiment was conducted with three factors design to study the main yield of Jerusalem artichoke ：density, base fertilizer, topdressing. The results calculated by analysis of variance（ANOVA） showed that the main effects of practices on rape yields were density topdressing density and base fertilizer and topdressing base fertilizer and topdressingdensity and topdressingbase fertilizerdensity and base fertilizer. The main yield is maximal（61 377kg/hm^2）when cultivating density was 27 795 plants/hm^2,base fertilizer and topdressing amounts were 600 kg/hm^2 and 300 kg/hm^2.This research will provide scientific reference for the Jerusalem artichoke in the future.