Effects of Irrigation and Nitrogen on the Performance of Aerobic Rice in Northern China Determining suitable sowing dates for aerobic rice in Beijing area using the ORYZA2000 model Yield Potential and Water Requirement of Aerobic Rice in Beijing Analyzed by ORYZA2000 Model Relationship of Non-Structure Carbohydrate Production and Yield Components of Aerobic Rice, HD297 Differences in zinc uptake and use efficiency between different aerobic rice accessions Preliminary Approach on Adaptability of ORYZA2000 Model for Aerobic Rice in Beijing Region The Effect of Different Soil Mulch Materials on the Growth and Yield of Rice