Journal of Henan Agricultural Sciences ›› 2007, Vol. 36 ›› Issue (5): 73-76.DOI: 10.3969/j.issn.1004-3268.2007.05.022
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崔键1;周静2;马友华1;王国强3
基金资助:
摘要： 春季基施尿素,种植牧草马唐,采用通气密闭室法研究了我国亚热带红壤旱地氨挥发对施氮水平的响应。结果表明,春季红壤旱地施入纯氮90,160和230 kg/hm^2（分别标记为N90,N160和N230）,氨挥发持续10-17 d,在施肥后6-8 d达到峰值（扣除对照N0）,峰值分别为0.11,0.57和1.84 kg/（hm^2·d）;氨挥发积累量在0.67-5.16 kg/hm^2,占施入氮素的0.74%-2.24%。初步预测氨挥发积累量与施肥量呈现近指数增长关系,指数函数方程为：y=0.1563e0.01
关键词: 马唐, 春季, 红壤旱地, 氮水平, 氨挥发
CLC Number:
S155.2+5
崔键;周静;马友华;王国强. 春季红壤旱地氨挥发对施氮水平的响应[J]. 河南农业科学, 2007, 36(5): 73-76.
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URL: https://www.hnnykx.org.cn/EN/10.3969/j.issn.1004-3268.2007.05.022
https://www.hnnykx.org.cn/EN/Y2007/V36/I5/73
