The Effect Of The Beginning Study On Alfalfa And Chinese Wild Rye Mixed Artificial Grassland In South Of Ningxia Mountainous

Mixed artificial grassland with Leguminous forage grass and germanous forage grass has the advantages of increasing forage yield,Improving forage quality, Reducing soil erosion and the plant diseases and insect pests. This study has selected alfalfa and Chinese wild rye which is locally grown appropriate, combined with the actual situation of south of Ningxia mountainous to do the experiment. Respectively on the terrace and slope, there has3mixed seeding combination of different proportion. It’s alfalfa: Chinese wild rye50%:50%、70%:30%、60%:40%, and the contrast is the single grassland. So we carry through territorial contrast experiments among different mixed proportions in south of Ningxia mountainous to screen out good varieties proportion. The results show that:(1) Different mixed ratio didn’t have effect on forage phonological phase change. In the first year alfalfa has no branched phenomenon. Chinese wild rye had till ring phenomenon. Alfalfa entered into withered and yellow phase earlier.(2) Different mixed ratio didn’t have effect on forage germination rate. Mixed seeding grassland can’t significantly improve the germination rate of alfalfa and Chinese wild rye better than the single grassland. The affect of forage grass germination rate on different changes of mixed ratio was not obvious.(3) The optimal mixed seeding optimal ratio for the best combination of plant height is not obvious. The optimal mix proportion for the stable state of aboveground biomass is not obvious.(4) The optimal mix proportion for the best water consumption is not obvious.(5) The optimal mix proportion for the better forage value is not obvious.