Karakteristik Fisik Tanah pada Sistem Pengolahan Tanah Konservasi (Studi Kasus: Kebun Percobaan Cikabayan, Bogor)

Abstract

Continuous growth of population, leads to continuous increase of food and water need. This situation requires continuous increase of food production is inevitable. One attempt to increase agricultural production is by doing soil intensive tillage (IT). However, in the long term, intensive soil tillage willreduce soil quality. Therefore, a good soil tillage that can maintain land productivity is neccessary, one of which is soil conservation tillage (CT). Nevertheless, how faris this tillage system better than intensive soil tillage system still debatable until now. This research aims to identify and compare the influence of continuous soil conservation tillage and soil intensive tillage practiced for ± 15 years on soil physical properties.The parameters observedinclude C-organic, aggregate stability, field moisture content, soil water movement, soil macroorganisme, and soil macroporosity.The results show that the soil with conservations tillage (CT) has better quality of soil physical properties than soil with intensive tillage (IT). It is shown by higher soil organic matter in CT (3.05%) than that in IT (2.50%), higher aggregate stability in CT (24.44%) than that in IT (20.24), higher total macroorganisme in CT than that in IT, higher available water in CT than that in IT, and higher distributes macroporosity total in CT (28.56%) than that in IT (12.95%).