Soil Enzyme Activity and Stoichiometry: Linking Soil Microorganism Resource Requirement and Legume Carbon Rhizodeposition

Legumes provide multiple ecosystem services in agricultural systems. The objectives of this study were to evaluate the influence different legumes through C rhizodeposition on dynamics C, N and P soil microbial communities’ resource requirements. pea (Pisum sativum L.), faba bean (Vicia white clover (Trifolium repens crimson incarnatum L.) non-legume wheat (Triticum aestivum grown pots. Carbon was quantified by using 13CO2 labeling, six enzyme activities measured: β-glucosidase (BG), arylamidase (ARYLN), N-acetyl-glucosaminidase (NAG), phosphatases (PHO) alkaline acid (AKP ACP). Enzyme stoichiometry approaches applied. results showed that BG, NAG ACP positively influenced clovers. analysis revealed a limitation microorganisms resources at plant reproductive stage. These explained functional traits. Plant biomass production, root total length, ability plants rhizodeposit content tissues main explicative factors. This also shows nutrient supplies contribute nutritional requirements growth availability soil.