The effect of Biochar Corn Cobs and Rice Husks on the Chemical Properties of Vertisol from Kupang Regency of East Nusa Tenggara.
Masria, Maria Klara Salli, Basri Y. Tang, dan Magfira Syarifuddin

Politeknik Pertanian Negeri Kupang

Abstract

This research aims to determine the effect of biochar giving corn cobs and rice husks on Vertisol from Kupang Regency of East Nusa Tenggara. The study used a complete randomized design of two factors with three replays. The first factor is a type of biochar consisting of biochar corn cobs and rice husks. The second factor is the biochar dose (% soil weight) consisting of 4 levels namely: 1.5 %, 3 %, 4.5 % and 6%. Chemical Properties observed in this study include pH, C-organic, Total Nitrogen, P2O5, K2O, and Soil Cation Exchange Capacity (CEC). The results showed that the administration of biochar corn cobs at a dose of 3 % gave the best results to C organic, P205, and CEC, while the highest value of total N and K soil was found in the biochar treatment of corn cobs at a dose of 6 %.

Keywords: biochar, Corn Cobs, Rice Husks, Chemical Properties, and Vertisol

Topic: Crop Production and Environment