Environmental challenges associated with needed increases in global nitrogen fixation Arvin R. Mosier OriginalPaper Pages: 101 - 116
Nitrogen fertilizer use in China – Contributions to food production, impacts on the environment and best management strategies Z.L. ZhuD.L. Chen OriginalPaper Pages: 117 - 127
Nitrogen fertilization and nitrate pollution in groundwater in Japan: Present status and measures for sustainable agriculture Kikuo Kumazawa OriginalPaper Pages: 129 - 137
Nitrogen budgets and environmental capacity in farm systems in a large-scale karst region, southern China Ryusuke HatanoTakuro ShinanoLi Zuowei OriginalPaper Pages: 139 - 149
The recent trend of agricultural nitrogen flow in Japan and improvement plans Shin-ichiro Mishima OriginalPaper Pages: 151 - 163
Denitrification in shallow groundwater in a coastal agricultural area in Japan H. TodaY. MochizukiH. Kawashima OriginalPaper Pages: 167 - 173
Evaluating impact of land use and N budgets on stream water quality in Hokkaido, Japan Krishna Prasad WoliToshiyuki NagumoRyusuke Hatano OriginalPaper Pages: 175 - 184
Nitrogen losses from fertilizers applied to maize, wheat and rice in the North China Plain G. X. CaiD. L. ChenZ. L. Zhu OriginalPaper Pages: 187 - 195
Effects of deep application of urea on NO and N2O emissions from an Andisol Yasukazu HosenKobkiet PaisancharoenHaruo Tsuruta OriginalPaper Pages: 197 - 206
Influence of soil physical properties, fertiliser type and moisture tension on N2O and NO emissions from nearly saturated Japanese upland soils Iain P. McTaggartHiroko AkiyamaBruce C. Ball OriginalPaper Pages: 207 - 217
Effect of chemical fertilizer form on N2O, NO and NO2 fluxes from Andisol field Hiroko AkiyamaHaruo Tsuruta OriginalPaper Pages: 219 - 230
N2O and NO emissions from a field of Chinese cabbage as influenced by band application of urea or controlled-release urea fertilizers W. ChengY. NakajimaH. Tsuruta OriginalPaper Pages: 231 - 238
Nitrous oxide emissions for 6 years from a gray lowland soil cultivated with onions in Hokkaido, Japan Kanako KusaTakuji SawamotoRyusuke Hatano OriginalPaper Pages: 239 - 247
The effect of soil moisture on mineral nitrogen, soil electrical conductivity, and pH Rui ZhangBrian J. Wienhold OriginalPaper Pages: 251 - 254
Nitrogen mineralization in paddy soils of the Chinese Taihu Region under aerobic conditions Marco RoelckeYong HanJörg Richter OriginalPaper Pages: 255 - 266
Ammonium transformation in paddy soils affected by the presence of nitrate Zucong Cai OriginalPaper Pages: 267 - 274
Changes in mineral N, microbial biomass and enzyme activities in different soil depths after surface applications of dairy shed effluent and chemical fertilizer M. ZamanK.C. CameronK. Inubushi OriginalPaper Pages: 275 - 290
Effects of controlled-release coated urea (CRCU) on soil microbial biomass N in paddy fields examined by the 15N tracer technique Kazuyuki InubushiSolomon AcquayeShigeo Komatsu OriginalPaper Pages: 291 - 300
Nitrogen dynamics in paddy field as influenced by free-air CO2 enrichment (FACE) at three levels of nitrogen fertilization Md. Mozammel HoqueKazuyuki InubushiShingo Yabashi OriginalPaper Pages: 301 - 308
Effects of lanthanum on nitrification and ammonification in three Chinese soils J.G. ZhuH.Y. ChuK. Yagi OriginalPaper Pages: 309 - 314
