| Summary: | The research aimed to study the effect of vinasse incubation and potassium
fertilizer for the growth of cocoa seedling. The research had been carried out in
Tridharma research station, Faculty of Agriculture Gadjah Mada University,
Banguntapan, Bantul, Yogyakarta since June to September 2013. The experiment used
RCC 70 clone cocoa seedling age three months. The research was designed by
Completely Randomized Design (CRD) factorial. The first factor was the incubation
vinasse consisted of three levels i.e incubation vinasse 15, 20 and 25 days. The second
factor was potassium fertilizer with two levels i.e without potassium fertilizer and with
potassium fertilizer as recommended (250 kg/ha) with three replications. The results
showed that cocoa seedling that no potassium fertilizer the same as with potassium
fertilizer on growth of cacao seedling. The best combination between 15 days vinasse
incubation with no potassium fertilizer on cacao seedling growth (increase leaf area,
root fresh weight, root dry weight and shoot dry weigth).
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