钾肥处理对桂葡3号葡萄夏果品质的影响

Effects of Potassium in Fruit Quality on Gui Pu No.3 Grape

使用不同量硫酸钾肥对桂葡3号葡萄夏造果进行树盘沟施处理,测定各处理夏果果实单粒重、果粒纵横径、果实钾素含量、可溶性固形物、可滴定酸和可溶性总糖含量,调查统计各处理后着色指数。试验结果表明,与清水对照相比,钾肥处理能显著提高桂葡3号葡萄夏果单粒重、果粒纵横径,增加果实风味和品质,提高果实商品价值,其中桂葡3号葡萄夏果生产中,在果实膨大期树盘每株施用硫酸钾肥750g,效果最佳。

In the test, potassium treatment in soil under the tree of Gui Pu No.3 Grape was conducted. The single grain weight, fruit size, potassium content, soluble solids, titratable acid and soluble total sugar content was determinationed,color index was investigationed. The results showed that the single grain weight and fruit size was significantly increased, fruit flavor and quality was increased, fruit commodity value was improved by potassium treatment. In GUI Pu No.3 Grape summer fruit production, applying potassium fertilizer 750 g per plant in the stage of fruit enlargement was the best.