Is there a linear relationship between priming effect intensity and the amount of organic matter input?

• Published in: Applied soil ecology : a section of Agriculture, ecosystems & environment Vol. 46; no. 3; pp. 436 - 442
• Main Authors: Guenet, Bertrand, Neill, Cathy, Bardoux, Gérard, Abbadie, Luc
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier B.V 01.11.2010; [Amsterdam]: Elsevier Science; Elsevier
• Subjects: 13C-labeling; Agronomy. Soil science and plant productions; application rate; Biological and medical sciences; carbon; carbon dioxide; carbon nitrogen ratio; carbon sequestration; Carbon storage; Chemical, physicochemical, biochemical and biological properties; crop residues; fresh organic matter; Fundamental and applied biological sciences. Psychology; General agronomy. Plant production; isotope labeling; Life Sciences; mineralization; nitrogen fertilizers; nutrient availability; Organic matter; Other nutrients. Amendments. Solid and liquid wastes. Sludges and slurries; Physics, chemistry, biochemistry and biology of agricultural and forest soils; Priming effect; sampling; soil amendments; soil microorganisms; soil organic matter; Soil organic matter mineralization; soil respiration; Soil science; Soil-plant relationships. Soil fertility. Fertilization. Amendments; stable isotopes; Straw; 13C-labeling; Priming effect; Carbon storage; Soil organic matter mineralization; Straw; C-labeling; Organic matter; Isotope labelling; Immobilization; Ecology; Soils; C-13; Mineralization; Soil science; Organic amendment; CARBON; DECOMPOSITION; MECHANISMS; MODEL; GLUCOSE; SUBSTRATE; MINERALIZATION; NITROGEN; ROOTS; SOIL

▶ Straw mineralization was not limited by mineral N availability. ▶ Priming effect (PE) was a saturating function of the amount of straw added. ▶ PE intensity did not increase linearly with increasing the straw additions. ▶ The effect of PE on the amount of soil-C was lower with higher straw inputs....