Pengaruh Bahan Organik, Pupuk P, dan Bakteri Pelarut Phosfat Terhadap Keragaan Tanaman Kelapa Sawit pada Ultisol
Abstract: This study was aims
to determine the effect of organic matter kind, phosphate fertilizers,
phosphate solubilizing bacteri, and an interaction effect between type of
organic matter with phosphate fertilizers, and phosphate solubilizing bacteri
on vigour of oil palm at ultisol. The study was designed as a factorial in a
randomized block design and each treatment was repeated 3 (three) times. The
treatment consisted of 3 (three) factors. First factor were kind of organic
matter: bagase and empty fruit bunches of oil palm, and without organic matter;
second factor were Phospate fertilizer consisted of 45 grams of P2O5 per tree
(the recommended dose) or 125 g SP-36 and 56.25 g per tree (125% recommended
dose) or 156.25gSP-36; and third factor were with and without of posphat
solubilizing bacteri. The results showed that: the organic material bagasse
provided vegetative characters (leaf number, petiole length, leaf angle, leaf
chlorophyll content, and in the number of leaves) of oil palm plantations in
the Ultisol was better than empty fruit bunches of oil palm plantations in
ultisol, and empty fruit bunches of palm oil gave the generative character (the
number of female flowers, sex ratio) on oil palm plantations in the Ultisol
better than bagasse.
Key words: organic matter,
phosphate fertilizer, phosphate solubilizing bacteria,vigour of oil palm before
producted, and ultisol
Penulis: Dewi Riniarti, Any
Kusumastuty, Bambang Utoyo
Kode Jurnal: jppertaniandd120070
