Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 519932
Title Nutritional imbalance in smallholder oil palm plantations in Indonesia
Author(s) Woittiez, L.S.
Department(s) Plant Production Systems
Publication type Article in professional journal
Publication year 2017
Abstract Oil palm (Elaeis guineensis Jacq.) is an exceptionally efficient producer of vegetable oil. Its potential production is estimated to
be well over 10 tons of oil per hectare per year, at least three times more than the second most efficient vegetable oil producer,
canola. The cultivation of oil palm provides a steady source of income for both plantation companies and smallholders. In
Indonesia, the world’s largest oil palm producing country, around 45% of the area under oil palm is owned by smallholders. The
majority of the smallholders manage their plantations individually, applying inputs and implementing management practices
as they see fit. Yields in smallholder plantations are estimated to be 3-4 tons of oil per hectare, which is lower than companyowned
plantations and far less than the production potential. Poor fertilizer application practices come up in many studies as
a key problem in smallholder systems. Farmers tend to over-apply cheap nutrients (especially N) and under-apply the more
expensive ones (especially K), leading to nutritional imbalance. There are several obvious solutions to improve plant nutrition,
but the implementation of these solutions in the complicated socio-economic context of the smallholders is challenging.
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