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根据我市果农生产实践经验,提高葡萄甜度,除选用含甜度高的葡萄良种外,还可采取以下几种增甜方法:增施磷钾肥。试验表明,在葡萄萌芽前每亩施优质农家肥3000～4000公斤;在幼果期每亩沟施硫酸
According to the practice of fruit and vegetable farming in our city to improve the sweetness of grapes, in addition to the selection of grape varieties with high sweetness, but also take the following kinds of sweetening methods: the increase of phosphorus and potassium fertilizer. Tests show that before grapes germination per mu high-quality farmhouse fertilizer 3000 to 4000 kg; in the young fruit of the implementation of sulfuric acid per acre