Abstract
Palm oil mill effluent (POME) is the most abundant waste produced from palm oil mills. POME waste products from palm oil mills can pollute the surrounding environment. The main objective of this study was to determine the use of POME on soil fertility and increase the growth of oil palm plants and minimize negative impacts on the environment. The results of the research obtained are a combination of primary data (results of analysis carried out in oil palm plantations owned by PT PMP, Maybrat Regency before the POME application) and secondary data (results of analysis carried out at Angsana Estate oil palm plantations, South Kalimantan after POME application). The results obtained indicate that generally after the application of POME to the land will increase the value of the bulk density and decrease the value of soil porosity and soil permeability. There was a decrease in the percentage of soil porosity in the application area (LA, 28.75% and Flatbed, 23.47%) compared to without application (LK, 36.83%) in the soil depth up to 30 cm. On soils with a deeper depth (30-60 cm) the percent of land subsidence is almost the same as at a depth of 30 cm. Conversely, the addition of POME in the land application (LA) had an impact on the increase in bulk density (1.81 g / cm3) and soil permeability (4.16 cm / hour) compared without POME (LK) (1.48 g / cm3 and 4.08 cm / hour) for soil samples to a depth of 30 cm. The POME application increases the availability of organic matter (C-organic and nitrogen) in the surface soils. The highest P-available values are seen at a depth of 0-20 cm and 20-40 cm in the flatbed. Also, POME on oil palm land tends to increase nutrient content in oil palm leaves compared to control land (without POME).
Highlights
most abundant waste produced from palm oil mills
The main objective of this study was to determine the use of Palm oil mill effluent (POME) on soil fertility
The results of the research obtained are a combination of primary data
Summary
Pengambilan Sampel Sampel yang diambil berupa sampel limbah cair pabrik kelapa sawit (LCPKS), sampel tanah, dan sampel daun kelapa sawit. Diambil tanah pada lahan aplikasi/pemanfaatan limbah cair, lahan kontrol, dan di dalam parit. Sampel tanah diambil dari tiga lokasi, yaitu lahan aplikasi, lahan kontrol, dan parit di sekitar perkebunan kelapa sawit yang terdapat di PT. PMP adalah parit bersekat (flatbed) dengan ukuran parit 20x1x0,8 m dimana pada 1 ha lahan aplikasi dibuat 26 parit. Gambaran penentuan lokasi pengambilan sampel tanah pada aplikasi lahan selengkapnya disajikan pada Lampiran 1. Daun yang sudah kering dimasukkan ke dalam kantong dan diberi label. Pengambilan sampel daun dilakukan antara pukul 08.0011.00 dan tidak boleh dilakukan pada hari hujan. Hal ini karena jika ada uap air yang menempel di daun akan mengganggu proses persiapan sampel (Balai Penelitian Tanah, 2005)
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