论文部分内容阅读
我省河西走廊具有发展葡萄的有利条件。但无霜期较短,冬季气温低,常有强寒流侵袭,遇特冷年份或防护不当,往往引起大量植株伤亡,限制了单位面积产量的提高。因此,探讨适于本地特点的抗寒栽培技术,有重要的现实意义。一、河西地区葡萄冻害的一般情况目前河西栽培的多为欧洲品种,据资料,休眠芽能耐-18—-20℃,成熟新梢能耐-22℃、多年生蔓能耐-22—-26℃的低温,而根系在-5—-7℃就受到冻害。所以在埋土
Hexi Corridor in our province has the favorable conditions for the development of grapes. However, the frost-free period is short, the winter temperature is low, frequent strong cold current invasion, especially in cold years or improper protection, often cause a large number of plant casualties, limiting the yield per unit area. Therefore, to explore suitable for local characteristics of cold cultivation techniques, has important practical significance. First, the general situation of grape damage in Hexi region At present, Hexi cultivation mostly European varieties, according to the information, dormant bud can withstand -18--20 ℃, mature shoots can tolerate -22 ℃, perennial creeping tolerance -22-26 ℃ low temperature , While the roots at -5 - 7 ℃ to be frost damage. So buried