Pengaruh Pengaplikasian Biochar Bambu dan Limbah Ekstrak Bromelin Terhadap Permeabilitas Tanah di Perkebunan Nanas

Abstract

Budidaya nanas intensif pada tanah Ultisol di lahan kebun PT. Great Giant Pineapple (GGP) memicu degradasi lahan yang ditandai dengan menurunnya kualitas sifat fisik tanah. Penelitian ini bertujuan mengukur dan menganalisis pengaruh pengaplikasian biochar bambu cacah (BC) dan biochar limbah ekstrak bromelin (LEB) terhadap permeabilitas tanah dan sifat fisik pendukungnya. Penelitian dilaksanakan di petak 80A milik PT. GGP, Kabupaten Lampung Tengah, Provinsi Lampung. Penelitian dilakukan menggunakan rancangan acak kelompok pada perlakuan biochar bambu cacah (BC) dan limbah ekstraksi bromelin (LEB). Taraf dosis yang dicobakan masing-masing adalah 0%, 50%, 100%, 150% SOP dengan empat ulangan. Parameter sifat fisik yang diamati meliputi permeabilitas, bobot isi, indeks stabilitas agregat, dan C-organik. Hasil pengamatan menunjukkan bahwa pengaplikasian biochar BC berpengaruh nyata (p <0.05) terhadap permeabilitas tanah dalam 3 bulan pengamatan pada dosis 150% (4.1 ton/ha). Biochar LEB tidak memberikan pengaruh nyata terhadap permeabilitas maupun sifat fisik lainnya.

Intensive pineapple cultivation on Ultisol soil in PT. Great Giant Pineapple (GGP) plantation area has experienced land degradation characterized by a decline in the quality of soil physical properties. This study aims to measure and analyze the effect of the application of chopped bamboo biochar (BC) and bromelain extraction waste biochar (LEB) on soil permeability and its supporting physical properties. The study was conducted in plot 80A owned by PT. GGP, Central Lampung Regency, Lampung Province. The study was conducted using a randomized block design on the treatment of chopped bamboo biochar (BC) and bromelain extraction waste (LEB). The dose levels tested were 0%, 50%, 100%, 150% SOP with four replications, respectively. The physical property parameters observed included permeability, bulk density, aggregate stability index, and organic carbon. The results showed that the application of BC biochar had a significant effect (p <0.05) on soil permeability within 3 months of observation at a dose of 150% (4.1 tons/ha). LEB biochar did not have a significant effect on permeability or other physical properties.