STATUS C-ORGANIK DAN KADAR N-TOTAL PADA LAHAN PENGEMBANGAN KELAPA SAWIT DI WAWOLAHUMBUTI KECAMATAN PONDIDAHA KABUPATEN KONAWE

Abstract

study aims to determine the status of soil organic carbon (C-organic), total nitrogen (N-total), and soil pH in oil palm development areas in Wawolahumbuti Village, Pondidaha Sub-District, Konawe Regency. The research was conducted in Wawolahumbuti Village, covering a research area of 365 hectares. Soil testing was carried out at the Biology Laboratory of the Faculty of Mathematics and Natural Sciences, Halu Oleo University, from January to March 2022. The research was conducted using a survey method. The study location consisted of 6 land units. Soil samples were collected using a composite method. Soil samples were taken at approximately ±25 meters intervals in each cardinal direction, then mixed and homogenized at a depth of 0-100 cm, and approximately 1 kg of composite soil was collected. The variables measured were soil organic carbon (measured using the Walkley & Black method), total nitrogen (measured using the Kjeldahl method), and pH (measured using a pH meter). The research results showed that the status of soil organic carbon in the oil palm development areas in Wawolahumbuti Village, Pondidaha-Konawe ranged from very low (0.87%) to low (1.57%). The status of total nitrogen ranged from low (0.11%) to moderate (0.24%), and the soil pH ranged from very acidic (4.42) to acidic (5.12). Management efforts that can be undertaken to enhance the productivity of oil palm plants in Wawolahumbuti Village include the application of organic materials.