Imperial Council of Agricultural Research. Cinchona Cultivation in the Netherlands-Indies July 1940

The form of the tree is single stemmed and unbranched in the lower half of the stem. [...] The above-mentioned working of the soil depends of course on the type of soil and the conditionAlly 1940 j BURNS : CINCHONA CULTIVAT of the plantation. [...] The seeds brought out to the coconut can be replanted in the beds and the ants in the cocnuts destroyed. [...] In practice the cutting and picking of the bark is carried out in the following way : The tree is felled with the least possible damage to the neighbouring trees. [...] If the working of the bark does not allow of the production of ribs then chips are produced by the scratching off of the hark.