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(四)避雨栽培的栽培要点避雨栽培是一种只在大棚顶部覆膜(不用裙边,保持四周通风),避免雨水直接侵袭葡萄的简易大棚栽培方式。避雨栽培既集合了促成栽培与露地栽培的优点,又避免了两者的弊端。这是南方栽培高品质欧亚种葡萄既经济、实惠,又方便有效,易为广大农户接受的栽培方式(表2)。在南方,晚熟品种必须采用避雨栽培,早中熟品种既适于促成栽培,也适于避雨栽培(先封闭催芽,发芽后至现花序,再转为避雨栽培),种植户可根据自己的技术条件、管理水平及市场需求权衡选用。避雨栽培在管理上与促成栽培还存在以下区别:(1)覆盖时期避雨覆盖一般在萌芽前完成,可用
(D) rain cultivation cultivation points rain shelter cultivation is a kind of only in the top of the plastic sheeting (no skirts, keep the ventilation around), to avoid direct invasion of grape rain in the simple greenhouse cultivation. Rain shelter cultivation combines both the advantages of cultivated and open cultivation, and avoids the disadvantages of both. This is the southern cultivation of high quality Eurasian grapes is economical, affordable, but also convenient and effective, easy for the majority of farmers to accept cultivation (Table 2). In the south, late-maturing varieties must be sheltered from cultivation. Early-maturing varieties are suitable for both inoculation and rain shelter cultivation (first closed germination, germination to inflorescence and then rain shelter cultivation) Their own technical conditions, management level and market demand trade-offs. Rain shelter cultivation in the management and promotion of cultivation there are the following differences: (1) covering the rain shelter generally completed before germination, available