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Vine Lines: Monitoring Grapevine Nutrition

机译:葡萄系:监测葡萄营养

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FARMING is all about timing. Some of the things we need to do are time flexible, like pruning, while others are time sensitive, like applying a spray for powdery or downy mildew. Missing a spray to control mildew can leave you with a problem for the rest of the season. Monitoring the nutrient status through the use of petiole analysis is also a "time sensitive" activity. The best way to find out what fertilizers you might need to apply is to analyze "petiole" (leaf stem) samples at bloom time and again at verai-son (berry softening). Bloom time is important because insufficient levels of macro or micronutrients at bloom can have a season-long effect on fruit quality. Veraison is important since it is when a major change starts to occur within the vine (i.e. the beginning of fruit ripening). Prior to veraison, the vine has been acquiring potassium from the soil and storing it within the vine (i.e. in the trunk, cordons, and canes). As the fruit ripening process begins, the potassium is remobilized and moved into the fruit.
机译:农业是所有关于时间的。我们需要做的一些事情是灵活的,例如修剪,而另一些则是时间敏感的,例如喷洒粉状或霜霉病。缺少控制霉菌的喷雾剂可能会在整个季节的余下时间给您带来麻烦。通过使用叶柄分析监测营养状况也是一种“时间敏感”活动。找出您可能需要使用的肥料的最佳方法是在开花时分析“叶柄”(叶茎)样品,并在Veraison(浆果软化)中再分析一次。开花时间很重要,因为开花时大量或微量营养素含量不足会影响整个水果的品质。 Veraison非常重要,因为这是葡萄藤内部开始发生重大变化的时间(即果实成熟的开始)。在检验之前,葡萄藤已经从土壤中获取钾并将其储存在葡萄藤中(即,树干,警戒线和藤条中)。随着果实成熟过程的开始,钾被迁移并进入果实。

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