Soil property
|
Optimum value
|
Farm 1
|
Farm 2
|
Farm 3
|
---|
Chemical properties
|
pH
|
4.75–6.25
|
5.95MA
|
6.09SLA
|
6.25SLA
|
OC
|
2.0–7.5%
|
2.78OP
|
2.45OP
|
2.33OP
|
Tot. N
|
0.2–0.5%
|
0.19L
|
0.17L
|
0.22OP
|
Bray P
|
12–96 ppm
|
10.20L
|
11.45L
|
11.28L
|
Exch. K+
|
91–286 ppm
|
0.22D
|
0.85D
|
0.81D
|
Exch. Ca2+
|
61–139 ppm
|
0.59D
|
0.80D
|
0.60D
|
Exch. Mg2+
|
40–194 ppm
|
0.95L
|
1.50L
|
1.10L
|
DTPA Fe
|
12–65 ppm
|
81.19H
|
38.20OP
|
37.10OP
|
DTPA Mn
|
5–35 ppm
|
62.39H
|
57.26H
|
56.29H
|
DTPA Zn
|
2.1–7.0 ppm
|
4.43OP
|
3.32OP
|
2.96OP
|
DTPA Cu
|
0.51–7.7 ppm
|
1.56OP
|
2.81OP
|
3.52OP
|
Physical properties
|
Soil particle size density (P.S.D)
|
%Clay
|
39.2
|
37.2
|
39.22
|
%Silt
|
10.82
|
9.82
|
9.82
|
%Sand
|
49.96
|
52.96
|
50.96
|
Texture class
|
Sandy clay
|
Sandy clay
|
Sandy clay
|
- L, low; H, high; D, deficient and OP, optimum Srinivasan et al. (2007). MA, moderately acidic and SLA, slightly acidic (Landon 1991)