Effects of Nitrogen Application Depth on Water Consumption Characteristics and Dry Matter Accumulation and Distribution in Rainfed Wheat Changes of C/N Ratio in the Subtending Leaf of Cotton Boll and Its Relation- ship to Cotton Boll Dry Matter Accumulation and Distribution Differences of dry matter accumulation and distribution of maize and their responses to nitrogen fertilization in maize/soybean and maize/sweet potato relay intercropping systems Study on Dry Matter Accumulation and Yield Benefit Characteristics of Two High-yield Maize Cultivars Under Different Nitrogen Regimes Water Consumption Characteristic and Dry Matter Accumulation and Distribution in High-Yielding Wheat Effects of Planting Density and Soil Moisture on Flag Leaf Photosynthetic Characteristics and Dry Matter Accumulation and Distribution in Wheat Effects of Supplemental Irrigation Based on Testing Soil Moisture on Dry Matter Accumulation and distribution and Water Use Efficiency in Winter Wheat Effects of Soil Tillage Practice on Dry Matter Production and Water Use Efficiency in Wheat Characteristics of Water Use and Dry Matter Accumulation and Distribution in Different High-yielding Wheat Cultivars under Supplemental Irrigation Based on Soil Moisture