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.

    We have a manual that explains all the features 

Record number 525558
Title Questions relevant to replanting in oil palm cultivation
Author(s) Ferwerda, J.D.
Source University. Promotor(en): C. Coolhaas. - Wageningen : Veenman - 101
Publication type Dissertation, internally prepared
Publication year 1955
Keyword(s) elaeis guineensis - oliepalmen - oil palms
Categories Oil Palms
Abstract A search is made for a sound replanting technique for oil palm plantations in the former Belgian Congo, by analysing the influences of the old stand and those of fertilizers on the development of young palms in replanted areas. The advantages of replanting over opening up of new areas are diminished by the greater chance of nutrient deficiency and other diseases. The benefits of retaining the old stand for a certain period of time are greatly reduced by the mortality of the young palms, their poor and slow vegetative development, their greater susceptibility to pests and diseases, the retarded beginning of their productive stage and the slow increase in production. The benefits of fertilizers for the young palms became evident during the second year after planting, but are slightly reduced as long as the old stand is retained.

There is a discussion of the effects of N, P, K, Mg, Ca, Cu, Mn, B, Zn, Ni, Co, and Mb in replanting experiments on a riverine sandy soil and a red latosol, especially their effects on chemical composition of leaves, number of male and female inflorescenses and fruit bunches. Various valuable improvements are advised in seed bed and nursery technique.

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