Study on the Planting Effect of the Mixed Grassland with Five Kinds of Leguminous and Gramineous Forages under the Different Sowing Patterns

【Objective】 The technical way of planting high quality and high yield,stability and long-term use of mixed artificial grassland were researched based on the different seeding rates and different sowing ways in the area with rainfall of above 500 mm.【Method】 The experiment design set the mixture patterns that were Dactylis glomerata + Onobrychis viciaefolia and Bromus inermis + Onobrychis viciaefolia at the mixed sowing ratio of 5∶5,4∶6 and 6∶4 three kinds of treatments and the treatment with 1∶1,2∶2 and 3∶3 lines of different planting;when flowering and heading,the density,height and forage yield of community various group were studied and the economic characters were contrasted.【Result】The results showed that: various economic indexes are better than other planting patterns and at 1∶1 line,the forage yield of mixed 6∶4 were higher than other mixed ones and the average yield could reach 1 276.8 g/m2 in Dactylis glomerata + Onobrychis viciaefolia and the forage yield of the ratios 6∶4 and 5∶5 were higher than other mixed sowing rate at 1∶1 line,the average yield of which could reach 1 194.95 and 1 242.3 g/m2 in Bromus inermis + Onobrychis viciaefolia.【Conclusion】 Good growth vigor and high performance were showed,among which,the increases of legumes yield can greatly enhance the quality of grassland in planting year at the research site.