提高葡萄甜度有办法一、地下追施钾肥。于葡萄着色期进行一次以速效钾肥为主的追肥，适当配合磷肥和少量氮肥，每株不超过５０ｇ。若没有速效化肥，也可追施草木灰，每株５００－１０００ｇ。这时提高葡萄甜度和促进新梢成熟均有明显效果。易出现裂果的品种，如乍娜、里查... There are ways to improve the sweetness of grapes, underground topdressing potash. During the grape coloring period, a top-dressing fertilizer based on quick-acting potash fertilizer should be properly used with phosphate fertilizer and a small amount of nitrogenous fertilizer, no more than 50g per plant. If there is no quick-acting fertilizer, can also be topdressing ash, 500-1000g per plant. At this time to improve the sweetness of the grape and promote the ripening of new shoots have a significant effect. Cracking prone varieties, such as Zacha, Richard ...