论文部分内容阅读
张家口地区的葡萄栽培据史料考证,宣化白牛奶葡萄约800年,涵鹿、怀来县的龙眼葡萄约400—450年。在长期栽培中,群众积累了丰富的栽培经验,加之,自然条件优越,昼夜温差较大,光照条件良好,比沿海或平原区辐射率高14%,降水量小,年平均350—400毫米左右,土质沙壤而深厚,葡萄浆果品质优良。宣化牛奶葡萄,以浆果甜酸适口,素有“刀切牛奶
Zhangjiakou region of viticulture According to historical research, Xuanhua white milk grapes about 800 years, Han deer, Huailai longan grape about 400-450 years. In the long-term cultivation, the masses have accumulated rich cultivation experience. In addition, the natural conditions are superior, the temperature difference between day and night is large, and the light conditions are good. The radiation rate is 14% higher than that in the coastal or plain areas, and the precipitation is small with an annual average of 350-400 mm , Sandy soil and deep soil, grape berry of good quality. Xuanhua milk grapes, sweet and sour fruit berry, known as "knife cut milk