| Guangxi is located in the subtropical zone, a subtropical monsoon climate, rich in water, light and geothermal resources suitable for grass growth, that can be grown all year round, but still in shortage of green fodder in winter and spring.At the same time, there are 7 million Ares bare fields in winter not fully utilized in our state. In recent years, attention has been payed in fallow field, mostly used in ryegrass cultivate. However, the nutritional value of ryegrass single species is not comprehensive enough.For the reason that this study used several good legumes both in crop and pasture:Alfalfa, Pea, Vetch, Chinese milk vetch, White clover, sow mixture with ryegrass. Measured with different combinations of fresh and dry yield, analyse nutrients composition to calculate nutrient output, and the cultivation of the soil composition changes before and after planting.On the basis of 2009, replaced several varieties in 2010, further the study, intended to screen out some mixed combination of better advantages to improve mixed planting results.After two years of planting, it shows that:yield increase on the mixture is not significant, but the yield and quality of nutrition is superior to ryegrass in monoculture. As the affect of soil composition, mixture pasture land for the consumption of soil nutrients lower than ryegrass in monoculture, and gradually, showing improving trends in soil composition, compared with ryegrass in monoculture, there are advantages in mixture. When mix alfalfa with ryegrass, SARDI 10, mixture is better; pea and ryegrass mixture can be Fei zi tian cui pea; Vetch and Chinese milk vetch mixed with ryegrass would be hairy vetch and Gradually Purple 5; when come to white clover it will be Gray sea clover and Gede clover; hairy vetch, Gradually Purple and ryegrass mixed in three kinds is a good combination too. |