| Abstrak/Abstract |
Labile organic matters or in other name “nutritive, labile, active, or young humus”,
is the newly formed organik matters which is recently formed from plant biomass
that goes into the soil (during the last 10-20 years). The stabile organik materials
(passive) or old humus, is the organik matters that has been exist in the soil for
a long time. The purpose of this study is to understand and to determine the
effect of organik farming system to the labile and stabile carbon fraction that is
exists in the soil. This research has been conducted from October 2015 until
November 2016. Labile carbon that are studied: C-POM (Carbon Particulate
Organik Matter), C- mineralized and C- water soluble. Stabile carbon that are
studied: C-humic and C- fulvic. Data analysis uses factorial design with 2 factors
based on the application time (Kalitirto, 1 year, KebonAgung, 7 years and
conventional), Sawangan (5 years) and crops phase (early, maximum vegetative,
and harvesting phase). Based on research, the 7 years organiC farming system
has the highest labile and stabile carbon amount, and then continued with 5
years organik farming system, conventional-organik, and the conventional with
the lowest stable and labile carbon amount. |
