玉米套种“堆堆苕”改变了红苕的传统种植,土壤温度升高、昼夜温差增大,土壤容重降低,孔隙度增多;苕叶受光量增加,平均为26.63klx,较传统埂子蓉高1.04倍,净光合强度增强,平均为7.68mgCO_2/dm~2·hr,比埂子苕增加14.63％。因而玉米套种“堆堆苕”有利于红苕块根的形成和膨大及干物质的合成与积累。“堆堆苕”每公顷产鲜薯达20370kg,比埂子苕增产14.31％,而且“堆堆苕”大薯块较多。玉米套种“堆堆苕”的带距为1.27～1.47m产量较高;低台位土壤套种“堆堆苕”比高位土壤套种“堆堆苕”效果好。 Corn intercropping “heap piles” changed the traditional cultivation of red croaker, soil temperature increases, the temperature difference between day and night increased, soil bulk density decreased porosity increased; Cotyledons increased light, an average of 26.63klx, higher than the traditional prickly heat 1.04 Fold, the net photosynthetic intensity increased, with an average of 7.68mgCO 2 / dm ~ 2 · hr, an increase of 14.63% than that of Prunus mume. Thus interplanting maize “piles” is conducive to the formation and expansion of red cress root and the synthesis and accumulation of dry matter. “Heap 苕” per hectare of fresh produce up to 20,370kg, yield 14.31% more than 埂 child 而, and “heap 苕” more big potato. The yield of maize intercropping “pile heap” was higher from 1.27 to 1.47m. The intercropping “heap heap” of low level soil was better than the intercropping “heap heap”.