Agronomic Efficiency of Biosolid as Source of Nitrogen to Banana Plants
Table 1
Chemical composition of the municipal biosolid applied to a banana plantation in the city of Pariquera-Açu as source of nitrogen over three crop seasons.
Parameter
Unit
Growing season
Parameter
Unit
Growing season
2001
2002
2003
2001
2002
2003
P
g kg
15.4
11.6
8.7
OC
g kg
222.7
302.8
172.4
K
g kg
0.9
0.8
1.0
pH
9.9
12.7
12.6
Na
g kg
0.6
0.8
0.4
Humidity
% (m/m)
71.2
64.3
62.9
As
mg kg
<0.1
<0.1
<0.1
Volatile solids
% (m/m)
52.5
43.9
35.1
Cd
mg kg
10.3
1.2
0.5
Kjeldahl-N
g kg
32.0
31.1
21.5
Pb
mg kg
83.6
115.6
21.0
NH4-N
mg kg
1941.5
806.7
591
Cu
mg kg
139.6
115.6
67.2
(NO3 + NO2)-N
mg kg
47.1
42.0
33.5
Cr
mg kg
43.8
19.3
14.5
S
g kg
7.7
7.0
6.74
Hg
mg kg
ND
ND
ND
Mn
mg kg
778.5
539.4
342.8
Mo
mg kg
ND
ND
ND
Fe
g kg
106.4
50.9
54.7
Ni
mg kg
22.2
12.7
9.9
Mg
g kg
5.9
4.8
3.8
Se
mg kg
ND
ND
ND
Al
g kg
7.0
6.7
5.5
Zn
mg kg
573.4
449.8
281.6
Ca
g kg
173.6
359.6
193.7
B
mg kg
22.9
13.9
7.4
Available-N
g kg
2.96
3.41
2.32
On dry matter basis; determined on biosolid with natural moisture content.
