Keragaan Tanaman Jagung (Zea Mays L.) Pada Dystrudepts Yang Diaplikasi Ekstra…

ABSTRACK The need for corn in Indonesia continues to increase and efforts are needed to increase corn production, one of which is by extensification. With extensification, untapped lands such as marginal lands Dystrudepts began to be used. Dystrudepts is infertile soil, the solution to the problem with Dystrudepts is chalk. However, Riau does not have a limestone deposit. Another alternati…