Investigation on the emission of nitrous oxide by plant THE ECOLOGICAL EFFECT OF NWE PESTICIDE MONOCARBOXOLDEHYDE IN PLANT-SOIL SYSTEM Review of Nitrogen Cycle in Plant-soil System Based on Application of 15N Tracer Technique Responses of C∶N∶P Ecological Stoichiometry in the Leaves of Atriplex canescens to N Addition Accumulation characteristics of applied cinnamic acid in cucumber seedling-soil system under NaCl stress.