Input Uses
Input uses in smallholder oil palm plantation at dry land (Karang Jaya and Muara Rupit) and wet land
(Banyuasin III and Talang Kelapa) were different not only in types, but also in quantities, as presented at
Table 1. The dry land plantation in general used less fertilizer and more labor compared to that of the wet
land plantation. The higher amount of total fertilizer used at wet land oil palm plantation is proved to
strengthen the research results by Rahutomo et al (2006) since fertilizer applied on wet land is easier to be
washed out before absorbed by the plants. It is also under stood why dry land oil palm plantations used
higher composite fertilizer (such as NPK) than the wetland plantation did. For the single fertilzer, the data
shows that it uses not uniformally spread over by all famers which is proven by the higher standard deviation
than the mean for SP36 and KCL.