Grain yield. 第1页

Studies on the Relationship between Canopy Apparent Photosynthesis Rate and Grain Yield in High Yielding Summer Corn(Zea may L.) Flag leaf photosynthetic characteristics, change in chlorophyll fluorescence parameters, and their relationships with yield of winter wheat sowed in spring. Effects of supplemental irrigation based on soil moisture on photosynthetic characteristics and enzyme activity of flag leaf in wheat. Effects of sowing depth on seedling traits and root characteristics of summer maize. Effects of longterm mixed application of organic and inorganic fertilizers on canopy apparent photosynthesis and yield of winter wheat. Effects of tillage and straw returning on microorganism quantity, enzyme activities in soils and grain yield. Characteristics of dry matter production and nitrogen accumulation in barley genotypes with high nitrogen utilization efficiency. Effects of plant polysaccharides-containing compound agents on yield and matter accumulation and transportation of winter wheat. Effects of plant polysaccharide compound agents on the photosynthetic characteristics and dry matter of soybean.