Dolomite granules for agriculture from Radhe Enterprise supply a balanced, slow-release source of calcium and magnesium that addresses two of the most common deficiencies in tropical and subtropical farmlands. Manufactured at our Bhavnagar, Gujarat facility, these agricultural-grade dolomite ball granules are designed for direct broadcast, fertilizer blending, and mechanical spreading across paddy fields, sugarcane belts, plantation estates, and horticultural operations.
Each granule is screened to a consistent 1–5 mm particle profile with a minimum 95% purity and tightly controlled CaO (28–32%) and MgO (18–22%) content. The ball form eliminates the dust loss and caking problems associated with raw dolomite powder, ensuring uniform coverage through spinner spreaders and pneumatic applicators even in humid field conditions. Granule hardness also minimises breakage during bulk transport and long-distance shipping.
Whether you manage large-acreage rice programs, source inputs for fertilizer manufacturing, or distribute soil amendments to farming networks across India and export markets, our factory-direct model delivers documented quality and competitive landed cost from Gujarat ports.
Technical Specifications
Factory-Direct Pricing
15–30% lower than marketplace rates. No middlemen.
Why Dolomite Granules Matter for Crop Nutrition
Continuous cropping with nitrogenous fertilizers progressively acidifies soil, reducing the availability of phosphorus, potassium, and micronutrients while mobilizing aluminium and manganese to toxic levels. Dolomite granules correct this trajectory by providing carbonate ions that neutralize acidity and by replenishing the calcium and magnesium reserves that intensive agriculture depletes. Unlike powdered agricultural lime which reacts rapidly and can overshoot target pH, the granular ball form releases minerals gradually over weeks, giving crops a sustained supply window and reducing the risk of root burn.
Magnesium is the central atom of the chlorophyll molecule — without adequate Mg, photosynthesis efficiency drops and interveinal chlorosis appears on older leaves. Calcium supports cell wall structure, root elongation, and enzyme activation. A single dolomite application addresses both macronutrients simultaneously, which is why agronomists recommend it for regions where magnesium deficiency is endemic, such as the rice belts of South Asia and the plantation soils of East Africa.
Crop-Specific Application Guidance
Paddy and rice: Standing water in rice paddies accelerates acidity development. Dolomite granules applied before puddling at 300–500 kg per acre neutralise pH while supplying magnesium for tillering and grain filling. Field trials across Andhra Pradesh and West Bengal show 8–12% yield improvement on acidic soils with one pre-season application.
Sugarcane: Ratoon crops exhaust magnesium faster than plant cane. Broadcasting 400–600 kg per acre of dolomite granules after harvest maintains pH stability across the 12–14 month cycle. The slow-release profile matches the extended growing period better than a single lime-dose.
Tea and coffee: Plantation crops on hill soils face continuous leaching from high rainfall. Dolomite granules at 200–400 kg per acre every second season replenish lost bases and support the quality parameters — leaf chlorophyll content in tea and bean development in coffee — that premium markets reward.
Horticulture and orchards: Calcium from dolomite reduces fruit disorders including bitter pit in apples and blossom-end rot in tomatoes and capsicum. Application at 150–300 kg per acre around the drip zone improves fruit firmness and shelf life.
Quality Assurance for Bulk Agricultural Supply
Each production batch is tested for CaO, MgO, moisture, particle size distribution, and neutralizing value before dispatch. Our QC protocol follows IS 5408 (agricultural limestone specification) benchmarks, and per-lot reports are provided with every consignment. For export buyers, we align documentation with destination-country fertilizer import requirements including Certificate of Origin, phytosanitary certificates, and mill test reports. Production capacity supports consistent monthly volumes for repeat buyers without the quality drift that intermittent sourcing introduces.
Packaging, Logistics and Export Terms
Dolomite granules are packed in 50 kg laminated PP bags with inner liners for moisture protection, or in 1 MT jumbo bags for high-volume orders. Full container load (FCL) shipments are preferred for export economics, with loading at Mundra, Kandla, or Pipavav ports. We offer FOB as standard, with CIF and CFR terms on request. Documentation includes commercial invoice, packing list, Certificate of Origin, and lot-wise quality test reports. Our logistics team coordinates directly with buyer freight forwarders to align vessel schedules with production completion.
Why Radhe Enterprise for Agricultural Dolomite
Our Bhavnagar manufacturing base places us within economical trucking distance of three Gujarat ports, reducing inland freight for export buyers. In-house granulation gives us direct control over particle size specification and packing, eliminating the subcontracting delays common in the industry. We work with agronomists and procurement teams to match product specification to local soil conditions and application equipment, and our repeat-buyer program supports scheduled monthly dispatches with locked pricing for committed volumes.
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View full categoryFrequently Asked Questions
What is the recommended application rate for dolomite granules in agriculture?
Application rates vary by soil pH, buffering capacity, and crop type. General guidance is 200–800 kg per acre. For mildly acidic soils (pH 5.5–6.0) supporting grains and pulses, 200–400 kg per acre is typical. For strongly acidic soils (pH below 5.0) or long-cycle crops like sugarcane and plantation trees, 500–800 kg per acre may be needed. A soil test is strongly recommended before first application to determine the precise lime requirement and avoid over-application.
How is dolomite ball different from dolomite powder for agriculture?
Dolomite ball (granular form) releases calcium and magnesium gradually over several weeks, runs cleanly through mechanical spreaders without bridging or clogging, and produces negligible dust during handling. Dolomite powder reacts faster due to higher surface area, making it suitable for rapid pH correction in fertilizer formulation or incorporation into blended products. For direct field application, granules are preferred for their handling convenience and extended activity window. The choice depends on your application method, crop cycle, and equipment.
Are your dolomite granules suitable for organic farming programs?
Yes. Our dolomite granules are a natural mineral product processed without chemical additives, synthetic binders, or coating agents. This makes them compliant with most organic certification standards including NPOP, USDA Organic, and EU organic regulations for soil amendments. Buyers requiring specific certification documentation should share their standard during order placement so we can align the documentation package accordingly.
Do you supply dolomite granules for export, and what documentation is included?
Yes, we export agricultural dolomite granules to buyers in UAE, Saudi Arabia, Kenya, Tanzania, Sri Lanka, Bangladesh, Nepal, and other markets. Every export consignment includes a commercial invoice, packing list, Certificate of Origin (Chamber-attested), lot-wise quality analysis report covering CaO, MgO, moisture, and particle size, and a phytosanitary certificate where required. Shipments are containerized with moisture-barrier packing from Mundra, Kandla, or Pipavav ports under FOB, CIF, or CFR terms.
How long does a single application of dolomite granules remain effective in agricultural soil?
A single application of dolomite granules typically provides pH correction and calcium-magnesium supplementation for 2–4 growing seasons, depending on rainfall intensity, initial soil buffering capacity, crop removal rates, and the type of nitrogen fertilizer used. Ammonium-based fertilizers accelerate acidification, reducing the effective duration. In low-rainfall regions with perennial crops like tea or coffee, the effect can extend beyond 24 months. In high-rainfall tropical conditions with annual row crops, retesting soil pH after 18 months is advisable to determine if reapplication is needed.
Can dolomite granules be applied through standard fertilizer spreaders?
Yes. Our dolomite granules are produced in a consistent 1–5 mm ball form that flows reliably through all standard broadcast spreaders, spinner spreaders, and pneumatic applicators. The granular form eliminates the bridging and clogging issues common with powdered agricultural lime, and the negligible dust content means operator visibility is not affected during application. For large-area broadcast, we recommend calibrating the spreader with a small quantity of granules first to confirm the flow rate setting matches the target kilograms per acre.