Effects of N on Plant Response to Heat-wave: A Field Study with Prairie Vegetation Effects of irrigation on plant growth and nitrogen use characteristics of Calligonum caput-medusae Schrenk seedlings Effects of water management on rice nitrogen utilization: a review Selection of Rice Germplasm with High Nitrogen Utilization Efficiency and Its Analysis of the Related Characters The effects of ice storms on net primary productivity in a subtropical coniferous plantation Selection Effect of Nitrogen Use Efficiency in Rice