THE MORPHOLOGICAL CHARACTERISTIC AND CLASSIFICATION OF INCEPTISOL SOIL IN FEW LAND AT MAMUJU REGENCY, WEST SULAWESI
Ida Suryani (a*) and Maimuna Nontji (b)

a) Faculty of Agriculture and Technology, Cokroaminoto University Jl. Perintis Kemerdekaan KM. 10 Tamalanrea, Makassar 90245, INDONESIA
*idasuryani8311[at]gmail.com
b) Department of Agrotecnology, Faculty of Agriculture,
Indonesian Moslem University (UMI), Makassar INDONESIA


Abstract

Soil morphology provide overview the evolution in the soil body through description and interpretation of soil profile properties as initial information in classifying soil. The research purpose is to determine the morphological characteristics and soil classification of Inceptisols in four study profiles: Kalonding, Batu Papan, Pepalang and Batu Ampat, in Mamuju Regency, West Sulawesi. The research method was descriptive exploratory by survey in the field and soil analysis in the laboratory. The results showed that most of the study profiles had lost all part of the horizon A indicated by the relatively high chroma color indicate color of horizon B. In general, texture clay because the clay content of the study profile relatively high and the dust ratio is low. It related to the intensity of weathering to high rainfall, easily weathered source stone and relatively high resistant of mineral content. Horizon A has a relatively lower clay content than horizon B. Other chemical properties: pH, N-total, cation exchange capacity, alkaline saturation, exchangeable of Ca, , Mg, K, Na and P- availability is low with a relatively constant distribution pattern related increasing depth. Based study profiles, Udepts not sulfuric horizon, duripan, fragipan and does not have free carbonates in the soil, alkaline saturation greater (equal to 60%) between 25 - 75 cm depth from the mineral soil surface. This categorized into Great Group Dystrudepts and sub group Typic Dystrudepts for the study profile of Batu Papan, Pepalang and Batu Ampat. The Kalonding study profile belongs to sub group Lithic Dystrudepts.

Keywords: morphological character, Inceptisol, soil classification, Mamuju

Topic: Crop Production and Environment

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