From: Soil degradation and prevention in greenhouse production
Treat. | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 |
---|---|---|---|---|---|---|---|
0yr | 12.76 B* | 15.31 A | 13.83 A | 12.41 A | 12.39 A | 10.03 A | 9.36 A |
1yr | 15.32 A | 15.74 A | 13.69 A | 12.05 A | 11.36 A | 9.12 B | 8.62 AB |
4yr | 13.95 B | 11.23 B | 9.65 B | 8.32 B | 8.16 B | 8.28 C | 8.23 B |
8yr | 11.86 C | 10.23 B | 9.31 B | 8.36 B | 8.21 B | 8.13 C | 7.86 B |