Illinois
Fertilizer Conference Proceedings
January 21-23, 2002
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Table 3. Production of mineral N during incubation of moistened
soils
for 8 wk at two different temperatures and soil moisture contents.
| Percentage of soil water-holding capacity * |
| 30 |
60 |
| Site-year |
20° C |
30° C |
20° C |
30° C |
| No. |
Rainfall |
EA |
NAI |
EA |
NAI |
EA |
NAI |
EA |
NAI |
| N recovered (mg kg-1) |
| 1 |
Normal |
92 |
93 |
135 |
122 |
108 |
158 |
194 |
204 |
| 3 |
Normal |
167 |
226 |
224 |
258 |
179 |
340 |
283 |
409 |
| 4 |
Deficient |
153 |
153 |
214 |
235 |
182 |
299 |
258 |
340 |
| 6 |
Deficient |
166 |
94 |
20 |
145 |
197 |
216 |
322 |
284 |
| LSD (0.001) |
5.9 |
6.4 |
7.1 |
4.2 |
3.2 |
2.6 |
4.4 |
4.3 |
* Values reported are for the mean for three replicate incubations.
EA, exchangeable NH4+; NAI, NO3-
+ NO2-
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