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Title: | The effect of soil management systems on microbial activity |
Authors: | Kocyiğit, Rasim Gaziosmanpaşa University, Agricultural Faculty, Department of Soil Science |
Keywords: | Basal Respiration Specific Respiration Native Pasture Long-Term Cultivation |
Issue Date: | 2009 |
Publisher: | Adnan Menderes Üniversitesi Ziraat Fakültesi Dergisi |
Citation: | Koçyiğit,R. (2009). The effect of soil management systems on microbial activity.International Meeting on Soil Fertility Land Management and Agroclimatology,Special Issue,899-907. |
Abstract: | The objective of this study was to evaluate basal (BR) and specific respirations (qCO2) of soils under native pasture and long-term cultivated soils at semiarid climate of the northern Turkey. In addition, the dependencies of BR to soil water content and the relationship between microbial biomass C (Cmic) and qCO2 were determined in the both ecosystems. Soil samples were collected from 0-5, 5-15, and 15-30 cm layers of native pasture and long-term cultivated soils. Soil microbial biomass was determined using fumigation incubation method. Specific respiration was calculated as BR/Cmic. BR varied through growth season in the both ecosystems and native pasture generally had greater BR than long-term cultivated soil. The highest BR was observed in October at native pasture. However, qCO2 was generally greater in long-term cultivated soil compared to native pasture. qCO2 and Cmic were negatively correlated at all layers of both management systems. There was not a significant dependency between soil water content and BR in Fluvaquentic Haplustolls. Thus, long-term cultivation increased qCO2 which varied through growth season. Soil organisms under stress condition increased qCO2 compared to native pasture. |
URI: | http://hdl.handle.net/11607/2691 |
Appears in Collections: | 2009 Özel Sayı |
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