Oil Palm Fertiliser Recommendation for Sabah Soils
Afandi, A M, Zulkifli, H, Khalid, H, Hasnol, O, Nur Zuhaili, H A Z A and Zuraidah, YThis article discusses on derivation of oil palm fertiliser formulation based on nutrient budget in Sabah mineral soils. The balanced compound fertiliser with N:11%, P2O5:6%, K2O: 22%, MgO: 2% and B2O3: 0.5% were fortified with organic matter and premium grade trace elements. This formulation would enhance the nutrient uptake and thus improving productivity of oil palm. Recycling of organic matter from palm waste would reduce the production cost towards sustainable oil palm plantation. The nutrients ratio of compound fertilisers available in the market were ranged between 23.5% to 48%. Therefore, this formulation with 41.5% of the nutrient ratio is considered commendable. The recommendation fertiliser rate for this formulation to be applied in mature oil palm is 8.5 to 9.0 kg palm-1 yr-1.
Artikel ini membincangkan bagaimana untuk memperoleh formulasi baja sawit berdasarkan kegunaan nutrien di tanah di Sabah. Baja sebatian yang seimbang dengan nisbah N: 11%, P2O5:6%, K2O:22%, MgO:2% dan B2O3:0.5% serta diperkaya dengan bahan organik dan unsur surih gred premium akan meningkatkan pengambilan nutrien dan produktiviti sawit. Pengitaran semula bahan organik daripada sisa sawit akan mengurangkan kos pengeluaran sawit dan menjadikan industri tersebut lebih mampan. Jumlah keseluruhan nisbah nutrien dalam baja sebatian sawit yang terdapat di pasaran adalah antara 23.5% – 48%. Oleh itu, formulasi baja dengan jumlah keseluruhan nutrien baja sebanyak 41.5% adalah munasabah. Kadar syor pembajaan adalah di antara 8.5 – 9.0 kg pk-1 thn-1 untuk pokok sawit matang.
Tags: oil palm, nutrient budget, Sabah mineral soils, recycling of organic matter, fertiliser formulation
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