Agriculture Reference
In-Depth Information
Table 7.7
Effect of compost application on basal soil respiration in 7 vegetable crops in soil samples collected at time of crop planting or harvest in a long-term
vegetable field trial (means followed by the same letter are not significantly different). (Adapted from Donovan et al.
2014
)
Mean soil respiration rates (µg CO2-C/g o.d.e
a
soil/h)
1. Broccoli
2. Eggplant
3. Cabbage
4. Capsicum
5. Leek
5. Leek
6. Capsicum
6. Capsicum
7. Broccoli
Treatment
(Planting)
(Planting)
(Planting)
(Planting)
(Planting)
(Harvest)
(Planting)
(Harvest)
(Planting)
Farmer practice—low P
2.154 de
1.632 b
0.715 a
0.573 a
0.689 ab
0.964 a
0.7299 b
0.4332 cd
0.6341 cd
Compost (125
t ha
−
1)—low P
4.549 a
1.762 ab
0.720 a
0.574 a
0.959 a
0.866 a
1.6683 a
0.7692 a
1.2166 a
Mixed (62.5 t ha
−
1)—low P
3.492 bc
1.512 b
0.712 a
0.497 a
0.750 ab
0.827 a
0.6808 b
0.5298 bc
0.598 cd
Nil input control
1.598 e
1.264 c
0.568 a
0.286 b
0.668 b
0.587 a
0.4133 b
0.2608 d
0.3947 d
l.s.d. (p = 0.05)
0.722
0.314
0.209
0.147
0.304
0.391
0.4881
0.2143
0.3210
a
o.d.e = oven dry equivalent weight of fresh soil
