Net Nitrogen and Sulfur Mineralization in Mountainous Soils Amended with Indigenous Plant Residues

Autor:	Theodore Karyotis, Theodore Mitsimponas, Christos Noulas, Miltiadis Tziouvalekas
Rok vydání:	2006
Předmět:	Total organic carbon chemistry.chemical_classification Soil Science chemistry.chemical_element Mineralization (soil science) Nitrogen Sulfur chemistry Agronomy Soil water Botany Nitrification Organic matter Agronomy and Crop Science Nitrogen cycle
Zdroj:	Communications in Soil Science and Plant Analysis. 37:2805-2817
ISSN:	1532-2416 0010-3624
DOI:	10.1080/00103620600832605
Popis:	Mineralization of nitrogen (N) and sulfur (S) were examined over a 31‐week incubation period under aerobic conditions in 13 soils selected from the mountainous district of Pertouli, central Greece. The main native plant species are turf, forage crops, forest trees, herbs, and shrubs. Net mineralization and immobilization of N and S by indigenous plants were estimated. Most soils are acidic in this xeric, mesic climatic regime, and organic carbon (C), organic nitrogen (N), and sulfur (S) appreciably varied in soils and plant species. The cumulative net mineralization of N is much higher in comparison to the amount of mineralized S. Release of N is curvilinear with time and associated with a declining mineralization in the later stages of the incubation. Close relationships exist between soil organic S and N and between organic C and N, indicating that these elements are mainly bound in the organic matter. The cumulative net mineralization from soils varies greatly and ranges between 36.6 and 212.8...
Databáze:	OpenAIRE
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