Table 1: Physico-chemical properties of the test soils.
Parameter |
Method |
|
|
Unit |
Value |
|
|
|
|
|
|
station site |
Farm site |
pH |
Potentiometric |
|
|
01:02.5 |
6.67 |
6.29 |
Exchangeable K |
Ammonium Acetate-Flame photometry |
|
|
Cmol (+)/kg soil |
1.38 |
5.81 |
CEC |
Ammonium Acetate-Ammonia distillation |
|
|
Cmol (+)/kg soil |
46.91 |
34.24 |
Available S |
Monocalcium |
phosphate |
extract |
mg/kg |
21.83 |
25.99 |
|
Turbidimetry |
|
|
|
|
|
Available P |
Olsen method |
|
|
mg/kg |
10.1 |
4.22 |
Organic C |
Walkley and Black |
|
|
% |
1.96 |
1.84 |
Total N |
Kjeldahl |
|
|
% |
0.18 |
0.17 |
Soil Texture |
Hydrometer |
|
|
% |
Sand= 37 |
Sand=29 |
|
|
|
|
|
Silt= 12 |
Silt=30 |
|
|
|
|
|
Clay= 51 |
Clay=41 |
|
|
|
|
Textural class |
Clay |
Clay |
K= Potassium; CEC= Cation Exchange Capacity; S = sulfur; P = Phosphorus; C = Organic Carbon; N= Total Nitrogen