Predicting Mineral N Release during Decomposition of Organic Wastes in Soil by Use of the SOILN_NO Model

Table 5

Total amount of N (g N m⁻²) in (atmospheric N input (1.6 g N m⁻²) + N in organic/inorganic fertilizer) and out (N in plants + N leached) of the soil columns during the experimental period. The distribution of N between plant uptake, leached or left in soil is also given as % of input N (fertilizer + atmospheric N input).

Treatment	Soil	N-input	N-uptake	Net N-uptake	N-leaching	Net N-leaching	Net N-output	Left in soil	% Plant uptake	% Leached	% Left in soil
Control	A	37.6	42.5		13.8			−18.7	113.0	36.8	−49.8
OW4	A	235.6	42	−0.5	13.8	0	−0.5	179.8	17.8	5.8	76.3
CF	A	123.6	50.2	7.7	18.4	4.6	12.3	55.0	40.6	14.9	44.5
OW4 + CF	A	277.6	55.4	12.9	24.8	11	23.9	197.4	20.0	8.9	71.1
Control	B	37.6	37.9		7.1			−7.4	100.8	18.9	−19.7
OW4	B	235.6	39.7	1.8	5.0	−2.1	−0.3	190.9	16.9	2.1	81.0
CW	B	123.6	52.8	14.9	12.2	5.1	20	58.6	42.7	9.9	47.4
OW4 + CW	B	277.6	59.3	21.4	12.0	4.9	26.3	206.3	21.4	4.3	74.3
Control	C	37.6	37.8		5.3			−5.5	100.5	14.0	−14.6
OW4	C	235.6	41.2	3.4	6.7	1.4	4.8	187.7	17.5	2.9	79.7
CW	C	123.6	51.7	13.9	10.2	4.9	18.8	61.7	41.8	8.2	50.0
OW4 + CW	C	277.6	58.8	21	12.5	7.2	28.2	206.3	21.2	4.5	74.3
Control	D	37.6	29		6.9			1.7	77.1	18.3	4.6
OW4	D	235.6	32.1	3.1	7.8	0.9	4	195.7	13.6	3.3	83.1
CW	D	123.6	40.9	11.9	13.0	6.1	18	69.7	33.1	10.6	56.4
OW4 + CW	D	277.6	46.2	17.2	15.2	8.3	25.5	216.2	16.6	5.5	77.9