testi riau (2)

“After attending the oil palm field school, I learned a lot about how to maintain a garden. For example, fertilization that used to be done by sowing, is now planted or buried in the ground, then I rarely use grass poison or herbicides. A significant increase in yield was also felt, usually 1 hectare only produces 500 kg, now it is in the range of 700-1000 kg / hectare, this has an effect on increasing income by 70-90%.’’

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