The effects of sward height and nitrogen fertilizer application on changes in sward composition, white clover growth and the stock carrying capacity of an upland perennial ryegrass/white clover sward grazed by sheep for four years

• 作者G. T. BARTHRAM; S. A. GRANT; D. A. ELSTON
• 卷第47卷
• 期第4期
• 印刷ISSN0142-5242
• 电子ISSN1365-2494
• 文件大小5088.72KB
• 发表时间1992
• DOI10.1111/j.1365-2494.1992.tb02278.x
• 页码326-341