分面浏览：发表日期 |
| 当前检索式 | ((ALL：Total nitrogen)) |
| 限定条件 | 无 |
| 2024 10 | 2023 55 | 2022 116 |
| 2021 263 | 2020 383 | 2019 466 |
| 2018 497 | 2017 493 | 2016 583 |
| 2015 406 | 2014 332 | 2013 290 |
| 2012 323 | 2011 240 | 2010 308 |
| 2009 203 | 2008 171 | 2007 166 |
| 2006 112 | 2005 80 | 2004 63 |
| 2003 44 | 2002 22 | 2001 21 |
| 2000 22 | 1999 9 | 1998 10 |
| 1997 10 | 1996 6 | 1995 3 |
| 1994 5 | 1993 5 | 1992 6 |
| 1991 1 | 1989 1 | 1987 1 |
