Corrosion

Both granular and liquid fertilizers are corrosive to some degree. Liquid fertilizers are corrosive on steel, brass, copper, zinc, some aluminium (and their alloys) and concrete. If not carefully managed, corrosion can become an expensive problem, contaminating fertilizers and causing mechanical damage to plant machinery.

To prevent corrosion after contact with liquid fertilizers, we recommend using equipment made from polythene, PVC, ceramic or stainless steel. Some grades of aluminium are also suitable. At the end of each spraying period, all equipment that has come into contact with liquid fertilizer should be washed thoroughly with water.

Note: Use of trace elements in the spray will increase the corrosion risk.

Formulation
Comments
DF
Dry Flowable
Dissolve thoroughly before adding liquid fertilizer
EC
Emulsifiable concentrate
Good agitation needs to be continuous
ME
Micro Emulsion
Good agitation needs to be continuous
SC
Suspension concentrate
Good agitation required. Jar test for MAXamFLO
SG
Soluble granules
Dissolve and don’t settle as they are in solution.
SL
Soluble liquid
Mixes well with liquid fertilizer. Good agitation required
WG (WDG)
Water Dispersible Granules
Mix in 20% water before adding liquid fertilizer. Will settle with no agitation.
Formulation
Comments
DF
Dry Flowable
Dissolve thoroughly before adding liquid fertilizer
EC
Emulsifiable concentrate
Good agitation needs to be continuous
ME
Micro Emulsion
Good agitation needs to be continuous
SC
Suspension concentrate
Good agitation required. Jar test for MAXamFLO
SG
Soluble granules
Dissolve and don’t settle as they are in solution.
SL
Soluble liquid
Mixes well with liquid fertilizer. Good agitation required
WG (WDG)
Water Dispersible Granules
Mix in 20% water before adding liquid fertilizer. Will settle with no agitation.

All formulations should be used with 20% water.

Comments
Incompatible. Difficulty spraying even under ideal conditions. Do not mix.
Needs constant and adequate agitation. 20% water recommended.
Mixes well. pre-mix chemical in water and maintain agitation. 20% water recommended.
Mixes well but requires extra water - use 40%+ water. Needs constant and adequate agitation.

Suggested Compatibility of Summit Fertilizers liquid fertilizers with some Agricultural chemicals

Analysis (%)
N(%)
S(%)
Bulk Density(t/m3)
UAN (w/w)
32
1.32 (kg/lt)
UAN (w/v)
42.2
0.76 (lts/kg)
MAXamFLO (w/w)
22
6.2
1.26 (kg/lt)
MAXamFLO (w/v)
27.7
7.8
0.79 (lts/kg)
Urea
UAN
MAXamFLO
UreaPlus
N Rate(kg/ha)
kg/ha
lts/ha
lts/ha
S(kg/ha)
(kg/ha)
S(kg/ha)
5
11
12
18
1.4
13
1.1
10
22
24
36
2.8
27
2.3
20
43
47
72
5.6
54
4.5
30
65
71
108
8.5
81
6.8
40
87
95
144
11.3
108
9.0
50
109
118
180
14.1
134
11.3
Conversions
Tonnes
Litres
UAN
MAXamFLO
10,000
13.2
12.6
15,000
19.8
18.9
20,000
26.4
25.2
25,000
33.0
31.5
30,000
39.6
37.8
40,000
52.8
50.4
50,000
66.0
63.0

MAXamFLO provides approximately 1kg sulphur for each 13 litres applied.