Nitrogen immobilization in paddy soils as affected by redox conditions and rice straw incorporation

• Published in: Geoderma Vol. 228-229; pp. 44 - 53
• Main Authors: Said-Pullicino, Daniel, Cucu, Maria Alexandra, Sodano, Marcella, Birk, Jago Jonathan, Glaser, Bruno, Celi, Luisella
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.09.2014
• Subjects: Aggregate-size fractionation; Amino sugars; anaerobic conditions; Availability; clay minerals; Compound specific δ15N stable isotope mass spectrometry; crop residue management; Fertilizer-derived nitrogen; fractionation; Immobilization; Interlayer fixation; Interlayers; microaggregates; Microorganisms; nitrogen; nitrogen fertilizers; nitrogen fixation; nutrient availability; organic matter; Oryza sativa; paddies; paddy soils; Residues; Rice; rice straw; Soils; stable isotopes; Straw; topsoil; Interlayer fixation; Aggregate-size fractionation; Amino sugars; Fertilizer-derived nitrogen; Compound specific δ15N stable isotope mass spectrometry

Biotic and abiotic processes controlling nitrogen (N) immobilization in paddy soils may significantly affect nutrient availability for plant uptake during the rice cropping season, as well as the efficiency of applied N fertilizers. Understanding the influence of water and crop residue management pr...