APLIKASI LIMBAH CAIR NANAS DAN KOMPOS KOTORAN SAPI UNTUK MENINGKATKAN POPULASI MIKROORGANISME PELARUT FOSFAT DI ULTISOL, LAMPUNG TENGAH

Abstract

Decreased production of pineapple in Lampung allegedly because of decreased soil fertility. This is due to intensive landuse and the type of soil cultivated is Ultisol. Ultisol has characteristics, acidic pH, low availability of nutrients, high alumunium saturation and low microba activity in the soil. The purpose of this research was to determine population of phosphate solubilizing microorganism after application of cow dung compost and pineapple liquid waste in the Ultisol, Central Lampung. This research was conducted by incubation in a greenhouse with observation intervals of 0, 30 and 60 days. Observation of microbial population of phosphate solubilizing using pikoskaya. The experiment used a completely randomized design and Data obtained from the experiments was analyzed using the analysis of variance at 95% significant level, followed by Duncan test at 5% level. The results showed that the application of 20.000 L ha-1 of pineapple liquid waste and application 20 t ha-1 of cow dung compost (K3L3) in the Ultisol, significantly increase microbial population of phosphate solubilizing (36,67 x 102 cfu g-1) if comparedto the application of 20 t ha-1 cow dung compost (K3L0) in Ultisol (22,33 x 102 cfu g-1) at 30 days of observation. However application of cow dung compost has a higher microbial population of phosphate solubilizing if compared to application of pineapple liquid waste alone.

Keywords

• cow dung compost
• pineapple liquid waste
• population microbia of phosphate solubilizing