文献类型： 外文期刊

作者： Bai Jin-shun ¹ ; Cao Wei-dong ¹ ; Xiong Jing ³ ; Zeng Nao-hua ¹ ; Gao Song-juan ¹ ; Katsuyoshi, Shimizu ⁴ ;

作者机构： 1.Chinese Acad Agr Sci, Key Lab Plant Nutr & Fertilizer, Minist Agr, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China

2.Qinghai Univ, Qinghai Acad Agr & Forestry Sci, Soil & Fertilizer Inst, Xining 810016, Peoples R China

3.Hunan Agr Univ, Coll Resources & Environm Sci, Changsha 410128, Hunan, Peoples R China

4.Kagoshima Univ, Fac Agr, Kagoshima 8900065, Japan

关键词： cover crop;ammonium volatilization;mineral nitrogen;nitrogen use efficiency;nitrogen balance

期刊名称：JOURNAL OF INTEGRATIVE AGRICULTURE （ 影响因子：2.848； 五年影响因子：2.979 ）

ISSN： 2095-3119

年卷期： 2015 年 14 卷 12 期

页码：

收录情况： SCI

摘要： The development of more efficient management systems is crucial to achieving high grain yields with high nitrogen use efficiency (NUE). February Orchid-spring maize rotation system is a newly established planting system with the benefits of ground cover and potential wind erosion in northern China. A field experiment was conducted to evaluate the effects of integrated application of February Orchid as green manure with reduction of chemical fertilizers (INTEGRATED) on spring maize yield, N uptake, ammonium volatilization, and soil residual mineral N in northern China. Compared to farmers' traditional fertilization (CON), integrated application of February Orchid as green manure with 30% reduction of nitrogen fertilizers (INTEGRATED) increased maize grain yield and biomass by 9.9 and 10.2%, respectively. The 0-100 cm soil residual N-min at harvest was decreased by 58.5% and thus nitrogen use efficiency was increased significantly by 26.7%. The nitrogen balance calculation further demonstrated that the INTEGRATED approach performed better than CON with lower apparent nitrogen loss (decreased by 48.9%) which evidenced by the ammonium volatilization of top-dressing fertilizer was decreased by 31.1%, the N-min movement to the deeper soil layers was reduced, and the apparent nitrogen leaching loss nearly equal to 0 under the INTEGRATED treatment. Therefore, in northern China, integrated application of green manure and chemical fertilizers is an efficient management approach for improving maize yields and NUE simultaneously.