摘要
本文比较分析了2004年与常年气象资料和四个试验品种的表现,结果表明:2004年6、7月份和8月上、中旬降雨量严重不足(较历年少近150 mm),造成土壤和大气干旱,大豆生长关键时期(即开花期、结荚期、鼓粒期)供水不足,使大豆株高降低,主茎节数、单株荚数、粒数减少,百粒重降低,产量降低的事实。说明了大豆6、7、8月份降水对大豆产量的重要性。。
Yield and traits between the climate in 2004 and normal year with four soybean varieties was investigated. The results showed that the inadequate rainfall （150 mm less than a normal year） caused soil and air draught and thus inadequate water supply for soybean during flowering, pod setting and pod filling. Although pest and other diseases were less infected, plant height, node and pod number as well as 100 seed - weight （3 - 5 g） was decreased, resulting a yield decline around 50 Kg/666.7 m^2.
出处
《大豆通报》
2006年第3期5-8,共4页
Soybean Bulletin
