N Mineralisation from Bioresources Incubated at 12.5°C

Table 1

Chemical characteristics of bioresources and soil.

	Units (DMB)	LAB	ADB	PM	PSW	Soil
Moisture	% (w/w)	70.1	80.3	55.1	10.8	20.0
pH (1 : 5 H20)		13	6.6	7.3	5.5	7.3
Organic C	% (w/w)	15.0	13.6	26.1	34.6	2.0
Soluble	mg/kg	1 300	4 300	8.6	46	<1.0
Soluble	mg/kg	1.7	1.2	<1.0	20	7.9
Soluble	mg/kg	1.2	<1.0	1.6	6	<1.0
Total N	% (w/w)	3.0	4.6	1.6	5.1	0.15
Total	kg/ha	225	345	120	383
Total P	mg/kg	18 000	11 000	9 300	15 000	340
Ca	mg/kg	248 000	20 700	89 400	23 600	7 790
C : N ratio^†		5 : 1	3 : 1	16 : 1	7 : 1	13 : 1

Total : total N in application rate (AR) 7.5 dry solid tonnes/ha of organic amendment; C : N ratio^† assumes total C ≈ organic C.