MPXA
Complexing agent for use in Agriculture, Horticulture and hydroponics marketed exclusively in the UK by Demeter Technology Ltd
- Fulvic acid extracted from Leonardite mined in Wyoming
- Unique combination of polymeric phenolics and organic acids
- Acidic hydroxyl groups and carboxylic groups increase complexing ability and stability
- Complexes both cations and anions
- Unique production process – does not create unwanted by-products, kinder to the environment
Complexing effects
- EDTA only works in basic solutions with a pH > 7
- MPXA works in both acidic and basic solutions from pH 2-14
- With EDTA in solutions with a pH less than 7 – eg Mn sulphate, zinc sulphate, chelation effect will be much reduced
Comparison of MPXA and EDTA
| Chelating agent | % Zinc | % zinc chelated |
|---|---|---|
| EDTA | 10 | 6.05 |
| MPXA | 10 | 10.44 |
Samples tested by Florida Dept of Agriculture and Consumer Services
EDTA sample prepared using 7x that of zinc eg 7kg EDTA for every 1kg Zinc
MPXA sample prepared with 1g MPXA per 1kg Zinc
UK Potato Trial using MPXA + Calcium at planting