GYP-FLO Product Description
GYP-FLO is much easier to handle and apply via boom spray, drip systems, overhead irrigation and aerial applications, compared to the spreading of bulk gypsum. In addition GYP-FLO is also a great source of calcium and Sulphur for plant nutrition.
GYP-FLO has a particle size of only 5 micron and is more than 80% available in much quicker results in overcoming soil compaction, unlike bulk gypsum that has particle size of 1000 micron (1mm) average with a solubility rate of only 0.24%. After 4 years of field trials, studies confirmed that the finer particles remain more active in the soil than the courser particles of "bulk gypsum".
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GYPSUM
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SURFACE AREA (M2)
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PRODUCT
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AVG PARTICLE SIZE
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RATE/Ha
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PER 1KG
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PER RECOMMENDED
RATE
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Bulk Gypsum
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1000 micron
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2.5 Tonne
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325 M2
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812,500 M2
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Fine Gypsum
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50 micron
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400 Kilograms
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6,500 M2
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2,600,000 M2
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Gyp-Flo
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5 micron
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50 Litres
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65,000 M2
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3,250,000 M2
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Source: Australian Fertility Manual, Editor V.S Glendinning, CSIRO Publishing 2000.
Application Rates
Field Trial Results
FIELD TRIAL - BULK GYPSUM/GYP-FLO COMPARISON
The graph represents a common result for both products. GYP-FLO contains high levels of available Calcium (>80%) to reduce exchangeable Sodium percentage. Bulk Gypsum contains high total amounts of Calcium however due to its low solubility of .24% and average particle size of 1,000 micron, it is generally not as effective in reducing Sodium.
The quality of irrigation water and type of fertiliser will affect the long term results of both Gypsum and GYP-FLO.
