Diurnal variation of soil basal respiration and CO2 emission from a typical paddy soil after rice harvest under long-term different fertilizations Effects of elevated atmospheric CO2 on paddy soil nitrogen content during rice season. Effects of no-tillage and fertilization on paddy soil CH4 and N2O emissions and their greenhouse effect in Central China. Effect of Cr3+ contamination on the population and the denitrification activity of denitrifying bacteria in paddy soils Effect of long-term applying inorganic fertilizers with SO42- or Cl- on nutrients and adsorb-desorption in paddy soils APPRAISAL OF EARLY RICE TOLERANCE TO GLEYIC PADDYSOIL IN CENTRAL AND EASTERN HUNAN Effects of long-term fertilization on soil organic carbon pool and carbon sequestration under double rice cropping. Effect of optimized nitrogen application on N2O emission from paddy field under wheat-rice rotation system