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Optimum oil palm planting density in West Africa

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Abstract
This article follows on from an earlier one about the same experiment in 2014. A range of various planting distances (from 7.5 to 9.5 metres) between oil palms was tested using an equilateral triangle design. The current planting density experiment was set up in an oil palm plantation in Nigeria. The climatic conditions are quite stable, with two seasons and around 2000 mm of annual rainfall. The soil is of the desaturated ferralitic type, sandy on the surface, deep and without coarse elements. After twelve years of continual monitoring and extrapolation of the results obtained up to the end of the cycle, we concluded on an optimum planting density of between 143 and 160 oil palms per hectare in amonospecific, equilateral triangle planting design (i.e. a distance of 8.5 to 9 metres between palms). It will take another few years of yield recording to fine-tune the result. For 12 year-old palms, this density range corresponds to a Leaf Area Index of 3.5 to 4, a light interception percentage of 89 to 90 and a foliage overlap percentage of 51 to 68. A thinning treatment was included in the protocol. Thinning at eight years has not led to any advantage after four years.
Keywords
oil palm, planting density, spacing, thinning, yield

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Citation

Please use this url to cite or link to this publication:

MLA
Bonneau, Xavier, et al. “Optimum Oil Palm Planting Density in West Africa.” OCL-OILSEEDS AND FATS CROPS AND LIPIDS, vol. 25, no. 2, 2018, doi:10.1051/ocl/2017060.
APA
Bonneau, X., Impens, R., & Buabeng, M. (2018). Optimum oil palm planting density in West Africa. OCL-OILSEEDS AND FATS CROPS AND LIPIDS, 25(2). https://doi.org/10.1051/ocl/2017060
Chicago author-date
Bonneau, Xavier, Reinout Impens, and Maxwell Buabeng. 2018. “Optimum Oil Palm Planting Density in West Africa.” OCL-OILSEEDS AND FATS CROPS AND LIPIDS 25 (2). https://doi.org/10.1051/ocl/2017060.
Chicago author-date (all authors)
Bonneau, Xavier, Reinout Impens, and Maxwell Buabeng. 2018. “Optimum Oil Palm Planting Density in West Africa.” OCL-OILSEEDS AND FATS CROPS AND LIPIDS 25 (2). doi:10.1051/ocl/2017060.
Vancouver
1.
Bonneau X, Impens R, Buabeng M. Optimum oil palm planting density in West Africa. OCL-OILSEEDS AND FATS CROPS AND LIPIDS. 2018;25(2).
IEEE
[1]
X. Bonneau, R. Impens, and M. Buabeng, “Optimum oil palm planting density in West Africa,” OCL-OILSEEDS AND FATS CROPS AND LIPIDS, vol. 25, no. 2, 2018.
@article{8558143,
  abstract     = {This article follows on from an earlier one about the same experiment in 2014. A range of various planting distances (from 7.5 to 9.5 metres) between oil palms was tested using an equilateral triangle design. The current planting density experiment was set up in an oil palm plantation in Nigeria. The climatic conditions are quite stable, with two seasons and around 2000 mm of annual rainfall. The soil is of the desaturated ferralitic type, sandy on the surface, deep and without coarse elements. After twelve years of continual monitoring and extrapolation of the results obtained up to the end of the cycle, we concluded on an optimum planting density of between 143 and 160 oil palms per hectare in amonospecific, equilateral triangle planting design (i.e. a distance of 8.5 to 9 metres between palms). It will take another few years of yield recording to fine-tune the result. For 12 year-old palms, this density range corresponds to a Leaf Area Index of 3.5 to 4, a light interception percentage of 89 to 90 and a foliage overlap percentage of 51 to 68. A thinning treatment was included in the protocol. Thinning at eight years has not led to any advantage after four years.},
  articleno    = {A201},
  author       = {Bonneau, Xavier and Impens, Reinout and Buabeng, Maxwell},
  issn         = {2272-6977},
  journal      = {OCL-OILSEEDS AND FATS CROPS AND LIPIDS},
  keywords     = {oil palm,planting density,spacing,thinning,yield},
  language     = {eng},
  number       = {2},
  pages        = {10},
  title        = {Optimum oil palm planting density in West Africa},
  url          = {http://dx.doi.org/10.1051/ocl/2017060},
  volume       = {25},
  year         = {2018},
}

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