不同叶面肥对无核白葡萄产量和品质的影响

Effect of Different Foliar Fertilizer on the Yield and Quality of Thomson Seedless Grapevine

在无核白葡萄开花前、幼果膨大期、浆果始熟期分别用不同营养液进行叶面喷施，探讨其对无核白葡萄产量与品质的影响，为提高无核白葡萄的商品性，以获得较高的经济效益。结果表明：喷施腐殖酸液肥和平衡营养肥不仅能够提高无核白葡萄的产量（比对照增产18．93％～20．20％），而且能够提高无核白葡萄叶片的叶绿素含量及净光合速率，提高果实硬度、可溶性固形物含量、糖酸比、还原性VC，降低可滴定酸含量，使果实品质得到明显改善。其中喷施平衡营养肥的效果最优。

In order to improve commodity and obtain higher economic of thomson seedless grapevine. Before flowering, young fruit enlargement period, berries before maturity in the thompson seedless grapes, were equipped with different nutrition on leaf. Investigated the effect of fertilizer on the yield and quality of thomson seedless grapevine. The results showed that spraying humic acid and balanced nutrition fat on thomson seedless grapevine leaves could not only increase yield 18. 93%~20. 20% compared with the CK, but also enable increase their chlorophyll content and netphotosynthetic rate of thomson seedless grapevine leaves, improved the fruit firmness, soluble solids contents, sugar acid ratio, ascorbic acid and decreased the content of titratable acid of thomson seedless, thus improving the fruit quality. Among the different combinations of foliar fertilizers, spraying balanced nutrition fat was the best.