new iron fertilizers based on phosphate knowledge innovative fertilizer that guarantees iron uptake...
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New iron fertilizers based on phosphate knowledge
Iron (Fe) is an essential element for plants. Since the 1960s, the only way to guarantee iron uptake in soil-less cultures was through organic binding, i.e. chelates. But Prayon has now developed micronutri Fe, an alternative, innovative fertilizer that guarantees iron uptake in soilless cultures. Micronutri Fe is a patented combination of multiple polyphosphates and iron.
Efficient iron fertilizer
Guarantees• Guaranteed iron uptake, even in the presence
of fluctuating pH levels• A pure water-soluble iron fertilizer containing only
nutrients: iron, phosphate and potassium• Less chlorosis, as proven in multiple trials
Additional benefits • Greater efficiency in the presence of UV disinfection
due to enhanced transmission and less deterioration• Iron availability is reversible when the pH level
fluctuates and/or is corrected• Easy to use via a separate C tank • Polyphosphates mean less precipitation in the
irrigation system and better phosphate uptake
Proven in tests in 2012 and 2013Research carried out previously by Prayon’s R&D department showed that micronutri Fe can retain the iron within a nutrient solution. The next step was to test iron uptake.
The first trials on cucumbers - conducted in early 2012 in collaboration with Wage-ningen UR (led by researcher Wim Voogt) - immediately confirmed the potential of micronutri Fe. Iron uptake was tested in various pH ranges in a pure hydroponic system (no substrate). Cucumbers are quick to reveal iron deficiency. The results showed that micronutri Fe, tested alongside a conventional chelate, efficiently makes iron available to plants in a hydroponic system. Moreover, less tipburn was observed when using micronutri Fe.
In August 2012 a soilless trial on cucumbers was launched at Wa-
geningen UR. Less chlorosis was observed with micronutri Fe; the plants were greener. The harvest proceeded normally and good harvest results were achieved.
In 2013 we ran a full soilless trial on tomatoes in the Hoogstraten Research Center. No chlorosis was observed throughout the entire year. Further confirmation that micronutri Fe is the perfect iron fertilizer.
In 2013 a soilless trial on strawberries in Hoogstraten proved that micronutri Fe could easily be used as an iron fertilizer. Once again good results were achieved. There was no chlorosis and the harvest proceeded perfectly!
Summary • Less chlorosis • Efficient and proven iron uptake • Good harvests
0 – 42 – 47 + 2.8% Fe
Enhanced UV stabilityMultiple trials have proven that micronutri Fe breaks down much less in the presence of UV disinfection while ensuring better transmission than organic chelates. That means more effective UV disinfection and less iron is lost.
pH range and reversibilityJust like a DTPA, micronutri Fe can make iron available up to pH 7. At higher pH values, corrections must be made to prevent difficulties with the other nutrients.
When the pH is corrected (e.g. by adding ammonium, NH4) to bring it back to 5.8, then the iron provided by micronutri Fe will once again be available to the plant. This is not true with organic chelates, where the iron is lost.
Easy to use in a separate C tankUsing a separate dosing tank, micronutri Fe can be easily and correctly dosed in the mixing tank. In other words, no pH correction is needed in the fertilizer tanks and mistakes can be avoided. In addition, there will be no precipitation or contamination in the tanks. Currently, only micronutri Fe may go in the separate tank; in the future, other elements may be added.
Pure fertilizerMicronutri Fe is a pure fertilizer; all elements are taken up by the plant. It is a fully biodegradable, 100% water-soluble fertilizer and, like the entire Hortipray® range, contains virtually no sodium.
In addition to iron, micronutri Fe also contains phosphate and potassium, 2 of the 3 main elements. Its NPK formula is 0-42-47+2.8% Fe.
A B CRAIN WATER TANK
MIXING TANK
COLLECT DRAIN WATER
TANK
DISINFECTED DRAIN WATER
TANK
UV LAMP
UV DISINFECTIONFILTER
GREENHOUSE
mol w/w %Fe 500 mmol/kg 2,8P 5,87 mol/kgK 10,15 mol/kgOH- 4,28 mol/kgP2O5 42K2O 48
Solubility 400 g/L water (20 ° C)pH solution 1% 9,9EC 1g/L 1,03 mS/cm
Specifications
Nutrients Table in different units
PRAYON BENELUX N.V. +32 3 860 18 28 [email protected]
PRAYON DEUTSCHLAND GmbH +49 231 55 79 90 0 [email protected]
PRAYON IBERICA S.A.U. +34 915 553 002 [email protected]
PRAYON ITALIA Srl +39 0243 81 11 80 [email protected]
PRAYON UK plc +44 1582 76 99 99 [email protected]
PRAYON Inc. +1 706 771 34 34 [email protected]
Headquarters: PRAYON S.A. Horticulture Division 144, rue J. Wauters BE - 4480 Engis Belgium
+32 4 273 92 11 +32 4 273 96 44 [email protected]
www.prayon.comYour local distributor
… KG micronutri Fe IN 100.000L WATER
micronutri Fe (kg) 1 kg 2 kg 3 kg 4 kg 5 kg 10 kg 20 kgFe (µmol/L) 5 10 15 20 25 50 100input H2PO4 (mmol/L) 0,06 0,12 0,18 0,23 0,29 0,59 1,17input K+ (mmol/L) 0,10 0,20 0,30 0,41 0,51 1,02 2,03
Fe3+ (µeq/L) 15 30 45 60 75 150 300input H2PO4
- (meq/L) 0,06 0,12 0,18 0,23 0,29 0,59 1,17input K+ (meq/L) 0,10 0,20 0,30 0,41 0,51 1,02 2,03
Fe (ppm) 0,28 0,56 0,84 1,12 1,40 2,79 5,59input P (ppm) 1,8 3,6 5,5 7,3 9,1 18,2 36,4input K (ppm) 4 8 12 16 20 40 79
Phosphate and potassiumNaturally, all elements must be taken into account when calculating the full nutrient solution: i.e. phosphate and potas-sium, in addition to iron.
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