Role of Labile Fraction of Carbon for Soil Quality Assessment
Mirawanty Amin (a*), Herlina Nanny Salamba (a), Nirmala Juita (b)

(a) AIAT (Assessment Institute For Agricultural Technology of North Celebes)
(a*) mirawantyamin[at]gmail.com
(b) Faculty of Agriculture Hasanuddin University

Abstract

Agricultural land management both intensively and not, such as without tillage, crop rotation, use of agricultural machinery, use of cover crops, and many more can increase soil organic carbon sequestration (SOC). The quality of the organic carbon sequestration is an indicator of the physical, chemical, and biological properties of the soil. Changes that occur in the SOC fraction and are relatively unstable can indicate an early indication of soil degradation or improvement in response to tillage practices. Loss of soil organic matter from tillage that occurs in the unstable fraction contained in macroaggregates. Many studies related to organic matter only analyzed their total shape and did not describe nutrient availability. Organic forms such as the labile carbon fraction are still very rarely studied and affect soil quality. The labile fraction of soil carbon is important to know because these fractions are a source of food in the soil and greatly affect the nutrient cycle and other soil properties.

Keywords: carbon, labile fraction, tillage, soil properties, nutrient cycle

Topic: Sustainable Agriculture and Rural Development