摘要
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 aim of this study was to investigate the effects of soybean and maize intercropping and fertilization on development of soybean downy mildew and growth of soybean and maize.The incidence,disease index and shoot biomass of different treatments were calculated and determined.The results indicated that soybean and maize intercropping significantly reduced incidence and disease index of soybean downy mildew.Furthermore,in the intercropping system,the incidence and disease index of soybean downy mildew was decreased with fertilization.Fertilization obviously increased maize shoot biomass in intercropping and monoculture.Fertilization had no significant effect on soybean growth in monoculture,and soybean shoot biomass with fertilizer were less than no fertilizer treatment in intercropping system.
出处
《大豆科学》
CAS
CSCD
北大核心
2011年第6期964-967,共4页
Soybean Science
基金
美国麦氏(McKnight)基金会作物合作研究项目(05-780)
关键词
大豆
玉米
间作
大豆霜霉病
施肥
Soybean
Maize
Intercropping
Soybean downy mildew
Fertilization
