Découvrez les évènements passés et à venir dans le monde entier et en ligne, qu’ils soient organisés par le CIFOR-ICRAF ou auxquels participent nos chercheurs.

Jelajahi acara-acara mendatang dan yang telah lalu di lintas global dan daring, baik itu diselenggarakan oleh CIFOR-ICRAF atau dihadiri para peneliti kami.


CIFOR–ICRAF publishes over 750 publications every year on agroforestry, forests and climate change, landscape restoration, rights, forest policy and much more – in multiple languages.

CIFOR–ICRAF addresses local challenges and opportunities while providing solutions to global problems for forests, landscapes, people and the planet.

We deliver actionable evidence and solutions to transform how land is used and how food is produced: conserving and restoring ecosystems, responding to the global climate, malnutrition, biodiversity and desertification crises. In short, improving people’s lives.

Effect of soil amendment on early growth of Vitex pubescens stumps

Export citation

This study demonstrated that the P3 treatmnet, with 1 volume of green charcoal per 5 volumes of soil, produces the best results for growing Vitex pubescens planting stock. Under this treatment, the medium reaches pH (H2O) of 7.04 and pH (KCI) of 6.75, the greatest number of shoots develop, these shoots have the largest length increment, and the greatest number of leaves develop. This leads to the conclusion that one volume of green charcoal mixed with five volumes of the soil available locally in possible production sites for Vitex pubescens is a suitable medium for the production of planting stock (Kusmina 1997). Treatment P1 (1:1) resulted in the largest increase of roots, but this had no significant influence on sprouting of shoots, length increment, or diameter increment of these shoots, or the number of leaves. It appears that the nutrient supply reached toxic levels under this treatment (Setyamidjaja 1986)

Related publications