Effect of Irrigation, Fruit Load, and Potassium Fertilization on Yield, Quality, and Petiole Analysis of Concord (Vitis labrusca L.) Grapes
Effect of Irrigation, Fruit Load, and Potassium Fertilization on Yield, Quality, and Petiole Analysis of Concord (Vitis labrusca L.) Grapes
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灌溉、果实负荷和钾肥对康科德 (Vitis labrusca L.) 葡萄产量、品质和叶柄分析的影响
DOI：
10.5344/ajev.1982.33.3.145
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发表时间：
1982
影响因子：
1.9
通讯作者：
D. Cawthon
中科院分区：
文献类型：
--
作者：
J. R. Morris;D. Cawthon
一个14岁的康科德葡萄园，没有收到钾肥施肥，因为建立了0或450公斤/公顷的K施肥两个灌溉和两个水果负载制度。从开花到变色的补充灌溉增加了产量和葡萄树的大小。果汁可溶性固形物减少灌溉在一年中接近正常的降雨量，但在一年的严重干旱，可溶性固形物得到改善灌溉。增加水果负荷降低果汁质量。接受钾肥的葡萄表现出响应的第一年的应用，通过增加产量和葡萄树的大小。施钾可提高果汁pH值和钾含量。
A 14-year old Concord vineyard which had received no potassium fertilization since establishment was fertilized with 0 or 450 kg/ha of K under two irrigation and two fruit load regimes. Supplemental irrigation from bloom to veraison increased yields and vine size. Juice soluble solids were reduced by irrigation in a year with near normal rainfall; but in a year of severe drought, soluble solids were improved by irrigation. Increased fruit loads reduced juice quality. Vines receiving K fertilization showed a response the first year of application through increased yeilds and vine size. Juice pH and K content were increased by K fertilization.