塑料大棚巨峰葡萄出现大小年的原因与对策葡萄塑料大棚栽培，能提前萌芽生长，在水果淡季提前上市，其经济效益是露地葡萄的２～３倍。但是，目前棚内葡萄普遍出现了枝粗叶茂、产量下降和大小年结果现象，导致隔年扣棚，影响了果农的收入。１产生大小年的主要原因导致大棚... Plastic greenhouses Kyoho grapes appeared in the size of the causes and countermeasures Plastic greenhouse cultivation can advance budding growth, early listing in the off-season fruit, the economic benefits of 2 to 3 times the exposed grapes. However, at present, the grapes in the shed generally appear thick branches, declining yields and year-to-year results, resulting in spills in the next year, affecting the incomes of the growers. 1 the main reason for the size of the year led to the greenhouse ...