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Liquid Gypsum for Thailand

GYP-FLO by Ultimate Agri Products

Export-grade liquid gypsum (calcium sulphate suspension) from Australia, formulated to correct sodic and saline soils, improve drainage and increase calcium and sulphur availability for rice, sugarcane, fruit and vegetable crops across Thailand.
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Why Thai Growers Are Turning to Liquid Gypsum ​

Large areas of Thailand’s agricultural land, especially in the Northeast (Isaan) region and low-lying paddy zones face ongoing challenges with salt-affected and sodic soils. High sodium levels break down soil structure, restrict root growth and lead to waterlogging during the wet season. In addition, they lock up essential nutrients that crops need.
Traditional bulk (mined) gypsum is one solution. However, it is slow to dissolve, dusty to handle and difficult to apply evenly. This is particularly challenging for farms already using irrigation systems, which are common in Thai rice, sugarcane and horticultural production.
Because of these limitations, many growers are shifting towards liquid alternatives.
GYP-FLO liquid gypsum was developed in Australia to solve these exact issues. It is a concentrated liquid suspension of technical-grade calcium and sulphur. Importantly, it is milled down to a 5-micron particle size, which is around 200 times finer than standard bulk gypsum.
As a result, it goes into solution quickly and begins working in the soil almost immediately. Instead of sitting in the soil profile for months, it becomes available within days.

What Makes GYP-FLO Different from Bulk Gypsum

Property Bulk (Mined) Gypsum GYP-FLO Liquid Gypsum
Particle size ~1,000 micron (1mm) 5 micron
Solubility Approx. 0.24% Over 80% available
Calcium content 12.5–19% (varies by grade) 35% w/v
Sulphur content 10–15% 25% w/v
Application method Spreader, by weight, dusty Boom spray, drip/fertigation, pivot, aerial
Speed of action Weeks to months Days
Because it remains in suspension and does not clog drip lines or nozzles, GYP-FLO can be applied through existing irrigation systems. This makes it a practical option for fertigation programs already used on Thai farms. As a result it fits easily into operations growing rice, sugarcane, cassava, fruit and vegetables without requiring major changes to equipment.

Where Liquid Gypsum Fits in Thai Agriculture

Liquid gypsum is suitable across a wide range of farming conditions in Thailand. In particular, it is used in:
  • Rice paddies affected by sodium build-up, poor drainage or salinity in coastal and lowland areas
  • Sugarcane and cassava crops growing on compacted or structurally weak soils in the Northeast and Central regions
  • Fruit and vegetable production where calcium deficiency affects fruit quality, shelf life and overall yield
    • Areas impacted by saline water intrusion, including shrimp-to-rice conversion land
  • Land rehabilitation and revegetation projects on degraded or construction-affected soils
    •
In many of these situations, improving soil structure and nutrient availability can lead to more consistent crop performance.
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Exporting to Thailand

Ultimate Agri Products manufactures GYP-FLO at its Victoria facility in Australia. The product is supplied to both domestic and international markets and also includes agricultural, horticultural and industrial sectors.

For Thailand liquid gypsum can be exported in bulk liquid format for container shipment. In addition, technical documentation such as product specifications and safety data sheets is provided. This helps support customs clearance and agricultural import requirements.

If you are a distributor, importer or large-scale grower in Thailand, you can contact Ultimate Agri Products to discuss trial programs, shipment volumes and logistics.
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Frequently Asked Questions

1. What is liquid gypsum and how is it different from regular gypsum?

Liquid gypsum is a concentrated suspension of very fine calcium sulphate particles, typically around 5 microns in size. Because these particles are much smaller than those in bulk gypsum, they dissolve more easily. As a result, crops gain faster access to calcium and sulphur without waiting for large particles to break down.

2. Will liquid gypsum work on sodic and saline soils in Northeast Thailand?

Yes. Liquid gypsum is specifically used for these conditions. The calcium helps displace sodium ions attached to soil particles. This allows sodium to be leached below the root zone through irrigation or rainfall. As a result, soil structure, water movement and root growth all improve.

3. Does liquid gypsum change soil pH?

No. Gypsum is pH-neutral, so it does not raise or lower soil pH. This makes it useful when sodium needs correction without affecting pH levels. If pH adjustment is also required, a lime-based product is usually applied separately.

4. How is liquid gypsum applied? Can it be used in existing irrigation systems?

Yes. One of the main advantages of liquid gypsum is its flexibility in application. It can be applied through boom sprays, drip systems, fertigation setups, centre pivots and even aerial methods. Because of its fine particle size, it does not clog equipment.

5. Can liquid gypsum be imported into Thailand for large-scale use?

Yes. It can be supplied in bulk container shipments for distributors, cooperatives or large growers. However, importers should confirm local registration and compliance requirements. Technical documentation is available from the supplier to support this process.

6. How much liquid gypsum should be applied per hectare?

Application rates depend on soil test results, including sodium levels, ECe and ESP, as well as crop type and irrigation method. Therefore, there is no single standard rate. However, field trials show that effective results are often achieved at lower rates than bulk gypsum. A soil test and supplier recommendation are the best starting point.

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