Effects of Fertilizer Application on Seed Yield of Smooth Bromegrass and Siberian Wildrye

doi:10.11733/j.issn.1007-0435.2000.04.006

›› 2000, Vol. 8 ›› Issue (4): 273-278.DOI: 10.11733/j.issn.1007-0435.2000.04.006

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Effects of Fertilizer Application on Seed Yield of Smooth Bromegrass and Siberian Wildrye

Mao Peisheng, Han Jianguo, Wang Pei, Rong Yuping

Institute of Grassland Science, China Agricultural University, Beijing 100094

Online:2000-11-15 Published:2000-11-15

施肥对无芒雀麦和老芒麦种子产量的影响

毛培胜, 韩建国, 王培, 戎郁萍

中国农业大学草地研究所, 北京 100094

基金资助:
国家“九五”科技攻关96-016-01-04专题研究内容

Abstract

Abstract: The experiments of nitrogen application were conducted with smooth bromegrass (Bromus inermis L.) and siberian wildrye (Elymus sibiricus L.) to study the changes of seed yield. Seed yield of smooth bromegrass was improved with the application N rate increasing in spring, and maximum seed yield was harvested at application 200kgN/hm². In autumn fertilizer treatments maximum seed yield was attained at 100kgN/hm². Seed yield of smooth bromegrass harvested at split application (Autumn 70kgN/hm²+ Spring 30kg N/hm²) was not only higher than split application 200kgN/hm², but also than spring or autumn application. Seed yield of siberian wildrye growing three years was increased greatly by application.

Key words: Smooth bromegrass, Siberian wildrye, Seed yield, Fertilizer applicatd

摘要： 以无芒雀麦和老芒麦为材料,研究不同施肥处理对其种子产量的影响。结果表明,无芒雀麦种子产量随着春季施氮量的增加而增加,其中以施氮200kg/hm²的种子产量最高;而秋季则以施氮100kg/hm²的种子产量最高,春秋分期施100kgN/hm²(秋季70kgN/hm²+春季30kgN/hm²)种子产量不仅高于分期施200kgN/hm²,而且也高于春季或秋季其它施肥处理。此外,施肥可以大幅度提高3年生老芒麦的种子产量。

关键词: 无芒雀麦, 老芒麦, 种子产量, 施肥

Mao Peisheng, Han Jianguo, Wang Pei, Rong Yuping. Effects of Fertilizer Application on Seed Yield of Smooth Bromegrass and Siberian Wildrye[J]. , 2000, 8(4): 273-278.

毛培胜, 韩建国, 王培, 戎郁萍. 施肥对无芒雀麦和老芒麦种子产量的影响[J]. , 2000, 8(4): 273-278.

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Effects of Fertilizer Application on Seed Yield of Smooth Bromegrass and Siberian Wildrye

施肥对无芒雀麦和老芒麦种子产量的影响

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