魔芋与玉米间作群体中魔芋植株生长及葡苷聚糖含量变化的研究

摘要

设置玉米与魔芋1∶4、2∶4行比种植和净作魔芋3种不同的栽培模式,魔芋采用8.78、12.07、15.36和18.66万/hm24种种植密度,研究不同间作模式和种植密度对魔芋主要生长性状和产量品质的影响.结果表明,玉米遮荫有利魔芋生长,表现为植株交高,生长繁茂,发病轻,叶绿素和葡苷聚糖含量套作都较净作高.综合考虑,魔芋与玉米间作,以玉米∶魔芋=2∶4的间作模式、种植密度为15.36万株/hm2最好.%The aim of this study was to understand the effect of different intercropping modes and planting densities on agronomic traits and the yield of konjac.In this experiment,konjac monoculture as control,maize/konjac 1∶4 and 2∶4 intercropping,and different planting densities including 87 800,120 700,153 600 and 186 600 per hectare were taken.The results indicated that konjac would grow better over shadowed by maize.Under the shadow,konjac plants were higher,more luxuriant,less serious in symptom of disease and higher levels of chlorophyll and glucomannan content than sole cropping.Taken all factors into consideration,the most superior maize/konjac intercropping mode was two row maize intercropping with four row konjac,and the density of konjac was 153 600 per hectare.