Phosphorous responses in wheat
Location
Moonyoonooka
Aim
To compare the effectiveness of three different nitrogen/phosphorus fertilisers in wheat.
Soil Analysis results
|
Soil Type
|
Depth
(cm)
|
OC
(%)
|
ECEC (meq/100g)
|
P
(mg/kg)
|
PBI
|
K
(mg/kg)
|
S
(mg/kg)
|
pH
(CaCl2)
|
|
Red loamy sand
|
0-10
|
0.7
|
1.9
|
5
|
13
|
115
|
7
|
4.8
|
|
|
10-20cm
|
0.4
|
1.2
|
3
|
21
|
110
|
4
|
4.6
|
Plant Analysis results
P identified as the major limiting nutrient. Zinc marginal.
Harvest results
|
Treatment
|
Harvest
|
|
|
(kg/ha or L/ha)
|
Yield
|
Protein
|
|
|
Banded
|
N*
|
P
|
(t/ha)
|
(%)
|
|
1
|
Nil
|
42
|
0
|
-
|
-
|
|
2
|
88 Agras Extra
|
42
|
8
|
1.94
|
10.5
|
|
3
|
36 AgNP
|
42
|
8
|
2.03
|
10.5
|
|
4
|
52 AgStream
|
42
|
8
|
1.69
|
10.7
|
|
5
|
132 Agras Extra
|
42
|
12
|
2.32
|
10.6
|
|
6
|
54 AgNP
|
42
|
12
|
1.95
|
10.2
|
|
7
|
104 AgStream
|
42
|
12
|
1.88
|
10.5
|
|
8
|
136 Agflow Extra
|
42
|
24
|
2.04
|
10.9
|
|
9
|
162 AgNP
|
42
|
36
|
2.83
|
11.2
|
| |
|
|
|
|
|
|
|
|
|
Prob
|
0.005
|
0.04
|
|
|
|
|
LSD
|
0.66
|
0.65
|
Key results
- There was a 1.6t/ha response to phosphorus
- At 12kg P/ha, Agras Extra out yielded AgNP by 0.37t/ha
Related Products
For further information on this trial
contact your local area manager.