The optimal cultivation mode on mixing planting of L ablab purpureus (Longyin Lentil No .1) and si-lage maize was screened through different cultivations (planting density condition ,irrigation and fertilization level) .The results showed that biomass yield of mixture increased significantly with the plant density of L ablab purpureus increased ,under the condition that the planting density of silage maize was guaranteed ,and the value of biomass yield was the highest when planting density of L ablab purpureus and silage maize was equal ,while exceeding of the planting density of silage maize could cause serious lodging ;Fertilization had significant yield increasing between 225 ~ 300 kg・hm-2 ;Irrigation could improve the yield significantly ,and the best irrigation stages were seedling and jointing stage respectively ,and the optimum volume was about once 30 mm ;According to planting density ,fertilization and irrigation experiment ,the optimal cultivation mode was selected in Hei-longjiang province .There was the highest yield which was 23 .28% higher than the control ,when the planting density was 47 000 plants・hm-2 ,fertilization volume was 225 g・hm-2 ,and irrigation twice .% 通过研究不同栽培模式(种植密度、施肥水平、灌水)对龙引扁豆1号与青贮玉米混种的影响，筛选出了龙引扁豆1号与青贮玉米混种的较优栽培模式.结果表明：在保证青贮玉米原高产的种植密度下，随着龙引扁豆1号密度的增加，其混种生物产量显著增加，当龙引扁豆1号的种植密度与青贮玉米的种植密度相一致时，二者混种的生物产量最高，过密则造成严重倒伏；追施(尿素)的施用量在225~300 kg・hm-2时增产显著；灌水处理则能显著提高混种产量，最佳的灌水时期分别在苗期和拔节期，灌水量为30 mm・次-1.通过对种植密度、施肥水平、灌水水平等栽培模式搭配组合筛选出了龙引扁豆1号与玉米混种的较优栽培模式，龙引1号扁豆播种密度47000株・hm-2+施肥(尿素)225 g・hm-2+灌水2次的栽培模式组合混种增产效果最好，比对照组合增产23.28%.
展开▼
