Plant Uptake of the Phosphate
Plants absorb P as Orthophosphate ions H2P04– and HP042- Polyphosphates are a chain link molecule of orthos and are not available to the plant until conversion.
Source: Farm Facts –Phosphorous fertilization in crop production and TVA.
Polyphosphate Production
Super Phosphoric Acid (SPA) combined with NH3
Processed through a Pipe Reactor = 10-34-0 or 11-37-0
- Chain Link Molecule of Orthophosphate
- Unavailable to the plant in that form
- Must convert to orthophosphate
- Time and Temperature
ALPINE Production
White and Green Orthophosphate acid, KOH, Aqua Ammonia, APP and water
- Chemically combined to form MKP, DKP, MAP and DAP
- Hot mix reaction – Chemically combining the raw materials
- MKP – very soluble and highly available
- Neutralized to virtually non-corrosive state.
Click here to VIEW ALPINE PLOT RESULTS
ortho-poly-plots
10-34-0 |
ALPINE G24 |
| (11.7 lbs/gal) x (0.34) = 3.978 lbs P2O5/gallon times 5 gal/AEquals 19.89 lbs P2O5/A |
(11.1 lbs/gal) x (0.24) = 2.664 lbs P2O5/gallon times 5 gal/AEquals 13.32 lbs P2O5/A |
| 30% Ortho-phosphate 5.97 lbs/A in the Ortho-phosphate form |
80% Ortho-phosphate 10.66 lbs/A in the Ortho-phosphate form |
| 70% Poly-phosphate 13.92 lbs/A in the Poly-phosphate form |
20% Poly-phosphate 2.67 lbs/A in the Poly-phosphate form |
| Even after 30 days, with a soil pH of 7.2, 50% of the phosphate will still be in the Poly-Phosphate form, being unavailable for the crop to utilize. TVA research.- high impurities – high viscosity, hard meter evenly |
– includes Micro package – no urea – low salt index, guaranteed seed safe – low impurity level – product storability – low viscosity – non-corrosive |
AGRONOMY MENU
| Orthophosphates |
| Immediately usable
The form of Phosphorus taken up by the plant High purity Higher investment Neutral pH |
| Polyphosphates |
| Higher levels of impurities
Not immediately available Must convert in soil to the Orthophosphate before the plant can use it Good carrier for micronutrients Less expensive |
