1. Organic NPK Balance & Slow-Release Nutrient Kinetics
Unlike water-soluble synthetic fertilizers (such as urea and diammonium phosphate) which suffer severe nitrogen leaching and volatilization in sandy soils, De Oiled Cake (DOC) releases nitrogen in an organic, slow-release proteinaceous matrix over a 60-to-90-day period.
As soil bacteria break down the castor proteins into peptides, amino acids, and ammonium, nitrogen is delivered continuously to plant root zones, promoting sustained vegetative vigor, deeper root architecture, and higher chlorophyll concentrations without causing root burn.
2. Organic Soil Amendment & Humus Conditioning Properties
Castor cake has traditionally been used by farmers as an organic soil amendment. When incorporated into moist soil during field preparation:
- Humus & Organic Carbon: With organic matter exceeding 80%, castor cake increases soil cation exchange capacity (CEC), enhances water-holding capacity in arid sandy soils, and improves soil crumb structure in heavy clay.
- Slow-Release Soil Enrichment: Natural organic nitrogen and minerals break down steadily to nourish beneficial aerobic rhizosphere microflora without synthetic fertilizer leaching.
- Long-Term Soil Fertility: Regular seasonal application restores depleted soil organic carbon reserves, providing sustained basal nutrition across multiple crop rotations.
3. High Protein Enriched Meal (N8 / N10)
For specialized commercial agriculture, green manure blending, and organic crop export growers, Nagdev Products processes High Protein Castor Meal (N8/N10) with nitrogen concentrations concentrated up to 7.0%–8.5% N, delivering rapid organic greening with minimal bulk shipping weight.
4. North Gujarat Agricultural Sourcing Advantage
Sourced directly from our crushing mill in North Gujarat's castor belt (Banaskantha and Vav-Tharad region), Nagdev Products supplies 100% pure expeller castor cake without adulteration from weed seeds, soil dirt, or industrial fillers. Every consignment is processed under strict thermal conditioning for agricultural soil conditioning.
Key Technical Specifications for Application Formulation
Parameters tested at our plant in Deodar, Gujarat, with analytical results reported on each lot Certificate of Analysis. Every consignment ships with a Certificate of Analysis (COA).
| Analytical Parameter | Typical Unit | Standard Formulation Limit |
|---|---|---|
| Nitrogen (N) | % | 4.0 – 4.5% (DOC) / 7.0 – 8.5% (High Protein) |
| Phosphorus (as P₂O₅) | % | 1.2 – 1.8% |
| Potassium (as K₂O) | % | 1.0 – 1.5% |
| Organic Matter | % | ≥ 80.0% |
| Organic Carbon | % | 40.0 – 45.0% |
| Moisture Content | % | ≤ 10.0% |
| Residual Oil | % | ≤ 1.5% (DOC) / 5.0–7.0% (Expeller Cake) |
| Physical Form | — | Coarse Granular Meal / Pellets |
Recommended Nagdev Products for this Application
Standard 4.0–4.5% N organic castor meal (HS 2306.90) for commercial farming.
Concentrated 7–8.5% N organic nitrogen booster for organic horticulture and tea/coffee estates.
Raw cold expelled industrial oil (HS 1515.30) extracted alongside organic meal processing.
Frequently Asked Technical Questions
Can castor cake be used as livestock feed? +
No. Not for livestock consumption. Castor cake is toxic to livestock, poultry and pets if eaten. Keep away from animals and children. For agricultural soil application only.
What is the recommended application rate per hectare for field crops? +
General agronomic recommendations are 500 kg to 1,000 kg per hectare for field crops (cotton, groundnut, spices) and 1,500 kg to 2,500 kg per hectare for intensive horticulture (vegetables, orchards, banana plantations).
What is the HS code for castor meal and de-oiled cake? +
Castor Cake (Expeller Cake) is classified under HS 2306.90 (indicative classification; final HS code confirmed at the time of export).
What packaging formats are available for bulk export shipping? +
Packed in 50 kg HDPE woven sacks with poly inner liners (approx. 18.0–20.0 MT net per 20ft FCL (Container loading details available on request)) or 1,000 kg PP jumbo bulk bags with lifting loops and discharge spouts.
How does Nagdev Products ensure the meal is free from foreign debris? +
Before crushing, raw castor seeds pass through our 3-stage mechanical seed-cleaning line equipped with magnetic separators, aspiration destoners, and vibrating screens.
Operational Plant · Supplying Commercial Volumes Now
Direct farmer-level sourcing from North Gujarat's castor belt (Banaskantha and Vav-Tharad region) ensures high ricinoleic purity, consistent viscosity, and unbroken supply. Request technical dossiers, laboratory trial samples, and term supply contract pricing.