Agriculture & Fertilizer
Industrial mineral solutions — PT Wira Energi Utama, North Sulawesi
Agriculture & Fertilizer Overview
Indonesian agriculture faces a major challenge: widespread acidic soils, particularly in Sulawesi, Maluku, and Papua. Soils with pH <5.5 cause aluminum and manganese toxicity that dramatically reduces crop productivity. Liming with agricultural limestone (aglime) or hydrated lime is the most effective and economical solution to raise pH and improve land productivity.
Products Used
Penetral pH tanah asam, sumber kalsium, dan pembenah struktur tanah — aplikasi brodcast
Penetral cepat pH kritis (<5.0) dan desinfektan patogen tanah pra-tanam
Role of Limestone / CaCO3 in Agriculture & Fertilizer
Agricultural limestone (aglime) neutralizes soil acidity: CaCO3 + H2O + CO2 → Ca2+ + 2HCO3-. Ca2+ ions replace H+ and Al3+ on soil colloid surfaces, raising pH and reducing toxicity. Calcium is also an essential macro nutrient for cell wall formation and seed development. Aglime reactivity depends on fineness — finer particles react faster.
Technical Requirements
| Parameter | Value / Standard |
|---|---|
| CaCO3 Minimum (CCE) | > 85% |
| Kehalusan Aglime | > 40% passing 100 mesh |
| Moisture Maksimum | < 5% |
| Heavy Metals (Cd) | < 3 ppm |
| Magnesium (MgO) | < 5% |
| Ca(OH)2 (Kapur Padam) | > 90% |
Process Integration
- 1
Analisis Tanah
Pengambilan sampel tanah dan analisis pH, Al3+ exchangeable, dan kebutuhan kapur (lime requirement).
- 2
Kalkulasi Dosis
Dosis aglime dihitung berdasarkan target pH (6.5–7.0 umum crops), CEC tanah, dan CCE produk.
- 3
Aplikasi Pre-Tanam
Aglime disebarkan merata 2–4 minggu sebelum tanam menggunakan spreader dan diinkorporasi dengan bajak.
- 4
Inkorporasi
Pengolahan tanah memastikan kontak kapur dengan partikel tanah untuk reaksi netralisasi yang efektif.
- 5
Monitoring pH
Uji pH tanah dilakukan 4–8 minggu setelah aplikasi untuk verifikasi efektivitas dan kebutuhan dosis lanjutan.
Industry Pain Points
Tanah asam pH <5.5 menyebabkan penurunan produktivitas padi, jagung, dan sawit hingga 40–60%
Harga aglime impor tinggi dan ketergantungan pada pasokan dari Jawa meningkatkan biaya input pertanian
Kehalusan aglime tidak memadai (<20% passing 100 mesh) memperlambat reaksi netralisasi hingga 2–3 musim tanam
Kontaminasi logam berat (Cd, Pb) dalam kapur pertanian kualitas rendah mengkontaminasi rantai pangan
Optimize Your Agriculture & Fertilizer Supply Chain
Consult your specific industrial technical and logistics requirements with PT WEU experts for maximum operational efficiency.
PT WEU Value Proposition
PT WEU's limestone from Ratatotok has a high CCE with CaO 55.20%. North Sulawesi location enables more efficient and economical distribution to agricultural centers in Sulawesi, Maluku, and Papua compared to Java-based suppliers. Low heavy metals guarantee food production safety.
Production Capability
- Crusher Capacity
- 250 TPH
- Monthly Output
- 150,000 MT
- Operations
- 24/7
- IUP OP Area
- 97.05 Ha
Use Case Simulation
Perkebunan sawit 1.000 ha dengan pH tanah rata-rata 4.8 membutuhkan dosis aglime 2 ton/ha = 2.000 MT total. Dengan pasokan dari PT WEU via truk (Sulawesi regional), biaya logistik turun 30% vs supplier Jawa. Dalam 2 musim tanam, pH meningkat ke 5.8–6.2 dengan peningkatan yield FFB 15–25%.
FAQ
Berapa dosis kapur yang tepat untuk lahan sawit dengan pH 4.5?
Apakah lebih baik menggunakan batu kapur atau kapur padam untuk pertanian?
Apakah ada sertifikat bebas kontaminan untuk kapur pertanian PT WEU?
Tersediakah pengiriman ke remote area di Sulawesi?
Apakah aglime PT WEU cocok untuk tanaman padi lahan gambut?
Related Industrial Exploration
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Logistics & Export
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Ready to Scale Your Agriculture & Fertilizer Operations?
Our technical team is ready to help you select the right mineral specification for your industrial process.
150K MT
/month capacity
250 TPH
Crusher Plant
Export
Ready Port Bitung