Measuring and modelling oil palm trunk growth

The trunk represents an important component of the vegetative dry matter of oil palm. This paper describes the approaches taken to model trunk growth as part of a comprehensive model of oil palm dry matter production and development, and the problems and limitations encountered. Several approaches are described including the independent simulation of trunk height and biomass, determination of height from biomass and determination of trunk biomass from total vegetative dry matter production by means of partition coefficients. The results of the modelling exercise are presented and recommendations are made to fill gaps in information needed to improve simulation.

Batang merupakan komponen penting dalam bahan kering vegetatif sawit. Artikel ini menerangkan pendekatan yang diambil bagi memodelkan tumbesaran batang sebagai sebahagian dari model menyeluruh pengeluaran dan pembangunan bahan kering sawit serta masalah dan batasan yang dihadapi. Pelbagai pendekatan diterangkan termasuk simulasi ketinggian batang dan biojisim yang tersendiri, penentuan ketinggian dari biojisim dan penentuan biojisim batang dari jumlah pengeluaran bahan kering vegetatif dengan cara koefisien partisi. Keputusan kerja membuat model dibentangkan dan beberapa cadangan dibuat bagi mengatasi kekurangan maklumat yang diperlukan untuk memperbaiki simulasi.

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Modelling vegetative dry matter production of oil palm

Previous oil palm simulation models such as OPSIM and SIMPALM have relied on direct measurements of vegetative biomass and biomass production as a basis for predicting total biomass production and bunch yield. To overcome the limitations imposed by the need for extensive on site measurements, methods of simulating vegetative biomass production (VBP) are needed. This […]