Changes in plant C, N and P ratios under elevated [CO₂] and canopy warming in a rice-winter wheat rotation system.

ABSTRACT: Elevated atmospheric CO₂ concentration ([CO₂]) can stimulate plant growth through enhanced photosynthetic rate. However, plant C, N and P ratios in response to elevated [CO₂] combined with canopy warming in rice-winter wheat rotation system remain largely unknown. Here we investigated the impacts of elevated [CO₂] and warming on plant nutrient ratios under open-air conditions. Four treatments including the ambient condition (CK), elevated [CO₂] (500 ppm, CE), canopy warming (+2 °C, WA), and the combination of elevated [CO₂] and warming (CW) were used to investigate the responses of plant C, N and P ratios in a rice-winter wheat rotation system in southeast China. Results showed that elevated [CO₂] increased C:N ra

SUBMITTER: Wang J 

PROVIDER: S-EPMC6443658 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature