Nitrogen Part II: Effective Nitrogen Management for Vineyards

November 24th, 2015
Nitrogen Part II: Effective Nitrogen Management for Vineyards

In my last Lodi Growers Coffee Shop article, we considered nitrogen’s pivotal role and  impacts on grapevines. In this article, we investigate nitrogen management. As in the management of all mineral nutrients, vine nutrient demand is the place to begin development of a nitrogen management strategy. Seasonal Nitrogen Demand In well-managed vineyards, the harvested fruit represents the greatest net annual nitrogen loss (fig. 1). The amount of nitrogen in mature…

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Nitrogen Part I: The Pivotal Mineral Nutrient in Vineyards

November 17th, 2015
Nitrogen Part I: The Pivotal Mineral Nutrient in Vineyards

In wine grape growing, nitrogen (N) receives a great deal of attention for several reasons. First, N is a component of numerous molecules essential for life, including a wide array of proteins, nucleic acids, and chlorophyll. As a result, nitrogen has broader influence on grapevine growth and fruit production than any other mineral nutrient. When vines contain too little nitrogen, photosynthesis is depressed, growth is inhibited, and their foliage appears…

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Negotiation Tips for Winegrape Growers

November 10th, 2015
Negotiation Tips for Winegrape Growers

Grape growers are expected to be competent at a wide-ranging of tasks.  For example, they have to be good at equipment maintenance, pruning, labor relations and finances, to list but a few of the skills that are necessary to succeed as a grower. Of all the skills that a grower must have, perhaps the most important is the ability to negotiate. Negotiation is a constant necessity for a grower both when…

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In the Vineyard with Paul Verdegaal

November 3rd, 2015
In the Vineyard with Paul Verdegaal

The 2015 Harvest came to a close by the second week of October.  Harvest began on the earliest date that most anyone can remember. It is an interesting year to say the least, but there have been previous harvest starts in July.   Let’s look back on some local observations from the recent past. Checking some of my notes; Zinfandel for red was picked in August in 2001, 2004 and…

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