User login

To share, meet and learn for sustainable cocoa

Academic publications

Evaluation of river sand as a medium for raising cocoa (Theobroma cacao L.) seedlings, Konlan, Sampson, and Opoku-Agyeman Michael Obour , American Journal of Agriculture and Forestry , 06/2014, Volume 2, Issue 4, Online, p.120, (2014) , (Academic Publication)
Developing strategic coffe and cocoa research agendas, , Developing a strategic research agenda for cocoa and coffee, 05/2014, Wageningen, (0) , (Academic Publication)

Evaluation of river sand as a medium for raising cocoa (Theobroma cacao L.) seedlings

TitleEvaluation of river sand as a medium for raising cocoa (Theobroma cacao L.) seedlings
Publication TypeJournal Article
Year of Publication2014
AuthorsKonlan, Sampson, and Opoku-Agyeman Michael Obour
JournalAmerican Journal of Agriculture and Forestry
Start Page114
End Page120
Date Published06/2014
Place PublishedOnline
Publication LanguageEnglish

A nursery experiment was conducted between November, 2011 and May, 2012 at the Cocoa Research Institute of Ghana to investigate the effect of using river sand and river sand-topsoil mixture on cocoa seedlings. Treatments tested were sole topsoil, sole river sand, river sand + foliar fertilizer (Sidalco liquid fertilizer, NPK-10:10:10), river sand + topsoil (1:1) and river sand + topsoil mixture (1:1) + foliar fertilizer. The results showed that sole topsoil retained more moisture and supported significantly taller seedlings. The river sand-topsoil mixture + foliar fertilizer seedlings had higher chlorophyll content and was more photosynthetically efficient thus resulting in significantly (P<0.05) larger stem diameter than all other treatments. Stem volume of seedlings in the river sand + topsoil +foliar fertilizer were also not different from those found in the sole topsoil medium. There were positive correlations between moisture retention and chlorophyll content of the seedlings. Chlorophyll content was found to be positively correlated to stem diameter and height gain by the seedlings. It was therefore concluded that cocoa seedlings can be raised in polybags filled with a mixture of river sand and topsoil (1:1) for a period of six months provided foliar fertilizer is applied at the rate of 10 mls NPK (10:10:10) in 15 litres of water at bi-weekly intervals.



Logo Ministry of Economic Affairs of the Netherlands

Logo Royal Tropical Institute