The Study And Investigation Of Freezingin Injury In The Northwest Gobi Region Of China

Through studing the several different models of Viticulture , irrigation and cold-proof in the Northwest Gobi Region of China ,we have these conclusion :1,Under thinking about cost saving ,improving quality and safe hibernation of grapes, a Long Man Li Jia of single-groove and single-row tilt-Li Jia was suitable for the cultivation frame of grapes.The style is conducive to filling soil,the early high-yield,post-winter germination rate and germination quality .2,In the overwintering there are very significant differences between drip irrigation and flood irrigation, and different methods of irrigation has different distribution of the root system.Grape has shallow root system distribution and main absorption roots(<2mm) under drip irrigation , and Absorbing roots are higher than the number of furrow irrigation . and under furrow irrigation way root system (>2mm) based not only significantly higher than the number of drip irrigation, root number is the 1.93 times than drip irrigation, but also a high degree of rough in drip irrigation .Under furrow irrigationthe grape has deeperland broader root distribution, but under the drip irrigation grape has the more concentratedly root distribution .Drip irrigation causes after the winter grape root frostbite or freeze to death, and seriously affected the germination rate germination .Drip irrigation will not have large areas of wet soil, resulting in part of the air-dry branches, and this will affact germination after winter, but the flooding irrigation is not . flooding irrigation requires more irrigation water soit is not conducive to the development of large-scale cultivation of grapes in the northwest desert conditions.3,Different methods of overwinteringof grape have the differently affect germination rate of branches after winter.But the methord of grape branches buried in the sand is the best way of overwintering,because it meet the air permeabilitythe ,thermal insulation and moisture retention..Through the trial, in the northwest Gobi region of China grape cultivation ,especially in the development of wine grapes, has a unique advantage. As long as having a good cultivated variety, reasonable shape and frame style of grape,deep cultivation, proper irrigation patterns, reasonabe field management, rational and effective methords of overwintering, it will be able to achieve high yield and good quality.