tillage and Nitrogen Influence Weed Population dynamics in Barley (Hordeum vulgare)

John T. ODonovan; David W. McAndrew; A. Gordon Thomas

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tillage and Nitrogen Influence Weed Population dynamics in Barley (Hordeum vulgare)

机译：耕作和氮素对大麦杂草种群动态的影响

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Field experiments were initiated at Alliance and Hairy Hill, Alberta, in 1989 to investigate the effects of conventional tillage, zero tillage, and four levels of nitrogen fertilizer on continuous barley production. In both tillage systems, the nitrogen was banded 6 to 8 cm deep between alternate barley rows. Herbicides were used for weed control each year. The influence of tillage and nitrogen on weed seed population dynamics was determined in 1991 and 1992. In the zero-tillage system, a large proportion of the weed seeds were present either at the soil surface or at the 5- to 10-cm depth.

机译：1989年在艾伯塔省的Alliance and Hairy Hill进行了田间试验，以研究常规耕作，零耕作和四种水平的氮肥对连续大麦生产的影响。在两个耕作系统中，氮在交替的大麦行之间的结合带深为6至8 cm。每年使用除草剂控制杂草。 1991年和1992年确定了耕作和氮肥对杂草种子种群动态的影响。在零耕作系统中，大部分杂草种子存在于土壤表面或5至10厘米深处。

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《Weed technology》 |1997年第3期|p.502-509|共8页
作者
John T. ODonovan; David W. McAndrew; A. Gordon Thomas;
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tillage and Nitrogen Influence Weed Population dynamics in Barley (Hordeum vulgare)

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