The invention discloses a
crop rotation,
intercropping and
relay intercropping cultivation method for relieving
continuous cropping obstacles of konjac. According to the method, a
crop rotation,
intercropping and
relay intercropping cultivation technology is integrated into a konjac planting
system, and the konjac and
green manure are subjected to
crop rotation, so that the
land utilization efficiency can be improved, the physical and chemical properties of soil can be improved, the
soil fertility can be adjusted, and the
continuous cropping diseases of the konjac can be effectively blocked; the konjac and high-stalk crops are intercropped, so that land, water, light and heat resources are fully utilized, and the high-stalk crops provide shading protection for the konjac; the konjac is subjected to
relay intercropping to cover plants, and
vegetation with proper density and height is rapidly formed on ridges, so that the growth of field weeds is inhibited, the
earth surface temperaturein a high-temperature period is reduced, the soil
moisture is kept, the diversity of soil organisms is increased, beneficial soil biological communities are promoted, and the growth and proliferationof harmful
pathogenic bacteria of soft rot and southern
blight are inhibited; and meanwhile, the
crop rotation, intercropping and relay intercropping cultivation
system interferes with the identification, positioning and damage of pests to the konjac, so that the survival of
natural enemies is facilitated, the field pests are inhibited and killed, wounds caused by the pests on stems and leaves ofkonjac plants are reduced, the probability that the konjac is infected by the
pathogenic bacteria is reduced, chemical herbicides, bactericides and insecticides do not need to be applied in the growthperiod of the konjac, the green, efficient and
sustainable development of the konjac planting industry and the
quality safety of konjac products are guaranteed, the konjac industry is greatly promoted, and the comprehensive and rapid development of economy and society in Shaanxi-Sichuan and Yunnan-Guizhou mountainous areas is promoted.