Super Phos and Potash on pasture
Location
Gnowangerup
Aim
To demonstrate increased pasture production with Super Phos and Potash.
Soil Analysis results
|
Soil Type
|
Depth
|
OC
|
ECEC
|
P
|
Fe
|
K
|
S
|
pH
|
|
Tamma loamy sand
|
0-10
|
1.2
|
2.4
|
25
|
225
|
24
|
26
|
4.6
|
|
|
10-20cm
|
0.4
|
0.5
|
20
|
335
|
22
|
3
|
4.5
|
Plant Analysis results
Phosphorus and potassium were limiting production.
Production results
|
|
Treatment
|
|
|
|
Dry Matter Production
|
|
Trt
|
(kg/ha)
|
P
|
K
|
S
|
(t/ha)
|
|
1
|
Nil
|
0
|
0
|
0
|
3.57
|
|
2
|
100 Super Phos
|
9
|
0
|
11
|
3.76
|
|
3
|
200 Super Phos
|
18
|
0
|
23
|
3.88
|
|
4
|
50 Potash
|
0
|
25
|
0
|
4.06
|
|
5
|
100 Super Phos + 50 MoP
|
9
|
25
|
11
|
4.14
|
|
6
|
200 Super Phos + 50 MoP
|
18
|
25
|
23
|
5.13
|
|
|
|
|
|
Prob
|
<0.001
|
|
|
|
|
|
LSD
|
0.450
|
Key results
- Responses to Super Phos were restricted without the application of Potash
- Super Phos and Potash applied together increased pasture production by up to 1.6 t/ha.
For further information on this trial
contact your local area manager.