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研究了大豆/玉米间作模式及施肥对大豆霜霉病的发生发展及大豆与玉米生长的影响。结果表明:大豆/玉米间作能够显著降低大豆霜霉病的发病率和病情指数;而且在间作体系中,施肥处理大豆霜霉病的发病率和病情指数均低于未施肥处理。大豆/玉米间作显著影响大豆和玉米的生长,不同施肥处理间大豆和玉米的地上部生物量差异显著。施肥显著促进玉米的生长,在间作和单作中施肥处理的玉米地上部生物量均显著高于未施肥处理;施肥处理对单作大豆地上部生物量影响不显著;在间作体系中施肥处理大豆的地上部生物量显著低于未施肥处理。
The effects of soybean / corn intercropping patterns and fertilization on the occurrence and development of soybean downy mildew and the growth of soybean and maize were studied. The results showed that soybean / maize intercropping could significantly reduce the incidence and the disease index of soybean downy mildew and the morbidity and disease index of soybean downy mildew were lower than those without fertilization in the intercropping system. Soybean / maize intercropping significantly affected the growth of soybean and maize. The aboveground biomass of soybean and maize differed significantly among different fertilization treatments. Fertilization significantly promoted the growth of maize. The aboveground biomass of maize in the intercropping and monocropping treatments was significantly higher than that of the non-fertilizing treatment. The fertilization treatment had no significant effect on the aboveground biomass of single cropping soybean. In the intercropping system, The aboveground biomass was significantly lower than that without fertilization.