Yara Liquids FLOWPHOS

Table 1: Phosphorus uptake and removal for the 3 main
summer crops.
Sorghum kg/ton Corn kg/ton Cotton kg/ba
Crop uptake 5 4.5 4.1
Removal 3.7 3.3 2.3
Figure 3: Yara Liquids FLOWPHOS applied in-furrow to
help with crop establishment and NPK applied deeper in
the soil, to supply seasonal crop requirements.
Response to Yara Liquids
FLOWPHOS KZ at planting
No starter Phosphorus
used
Planting in Central QLD
(courtesey of Pioneer Seeds)
Symptoms of P deficiency are;
• Slow emergence and growth
• Stunted and spindly plants
• Off-green coloured foliage with purplish veins and
purplish petioles due to anthocyanin accumulation
In-furrow application of Yara Liquids FLOWPHOS
at planting
Generally cotton and summer crops are planted as soon
as soil temperatures reach the minimum threshold. Low
soil temperatures slow down soil physical processes,
chemical reactions, biological activity and reduce solubility of
phosphorus compounds, which reduces the concentration of
P in the soil solution, as can be seen in Figure 4.
Figure 4: Influence of soil temperature on Phosphorus
availability
Relative availability P (%)
100
80
60
40
20
Rates of Yara Liquids FLOWPHOS that supply 3 to 4kg P/ha
are an effective option to prevent early season P deficiency.
Yara Liquids FLOWPHOS provides high
concentration of available P to a relatively
inefficient root system. This ensures high plant
P concentration during important early growth
stages;
• Development of extensive root system
• Floral initiation (establishment of grain number)
• Important for establishing high yield potential
Yara Liquids FLOWPHOS reduces the negative effects of
many types of stress on plant growth and development
through supplying 100% water soluble nutrients in an easily
accessible band next to the seed
Stresses which cause poor nutrient uptake soils are;
• Cold, wet soils
• Compacted soils
• Soils with low P status
0
21 18 16 13
Soil temperature (Cº)
Yara Liquids FLOWPHOS can be tank mixed with many
insecticides and to protect young seedlings.
If phosphorus is not applied as a starter, small developing
cotton and summer crops may suffer from P deficiency as
shown in Figure 5.
Figure 5: Phosphorus
deficient corn
A well setup planter applies Yara Liquids FLOWPHOS in a
uniform stream as illustrated in figure 3. In most situations,
but particularly in colder soils, plants benefit from phosphorus
placed close to the seed, regardless of soil P levels.
Yara Liquids FLOWPHOS Range for cotton and summer
crop
FLOWPHOS FLOWPHOS FLOWPHOS
15 13z kz
Nitrogen (N) 10% 9% 7.5%
Phosphorus
(P)
15% 13.5% 14.1%
Potassium
(K) 1.0% 6.5%
Zinc (Zn):
EDTA
0.9% 0.5%