Effects of Plant Population on Photosynthetic Characteristics and Yield Components of Summer Soybean Effect of Plant Distrbution in Population on Dry Matter Accumulation,Pantitioning and Yield in Summer Soybean Effects of pre-sowing soil moisture and planting patterns on photosynthetic characteristics and yield of summer soybean Effects of Different Tillage Methods on Dry Matter Accumulation and Transfer Characteristics of Summer Soybean Relationship between Photosynthetic Rate and Light Intensity in Summer Soybean Effects of Planting Density on Photosynthetic Characteristics and Yield of Summer Soybean in North Xinjiang Effects of free air CO2 enrichment ( FACE) on growth and yield of summer soybean Relationship between the Contents of N.P.K and Water Supply and Fertilizer in Summer Soybean Analysis of the Gene Effects for Some Important Agronomic Characters in Summer Soybean Agronomic characters and their correlations with yield in summer soybean varieties of different growth habits Effect of population distribution on yield and water use efficiency in summer soybean The initial study of the relationship between meteorological factors and agronomic characters of soybean in Beijing area