Showing results for: grapevine Articles
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Arsenic present in the soil‐vine‐wine chain in vineyards situated in an old mining area in Trentino, Italy
The present study follows arsenic (As) transfer through the chain of soil‐vine‐leaves‐grapes‐wine to assess the possible risk of arsenic intake related to consuming grapes and wines produced in 10 vineyards located in a mining area rich in this element. The results are compared with date from 18 uncontaminated areas. In the soil, the content of As extracted with acqua regia and that available, ...
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Maintain Natural Grapevine Mechanisms Through a Drought
Discussion of practical consequences related to irrigation volume and frequency, and the need to systematically relate irrigation strategies to the effects on plant water use and fruit ...
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Irrigation Strategies - Maintain Natural Grapevine Mechanisms Through a Drought
Discussion of practical consequences related to irrigation volume and frequency, and the need to systematically relate irrigation strategies to the effects on plant water use and fruit ...
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How to Help Grapevines Recover after a Difficult Frost Period
100% : this is the percentage of a vineyard that can be damaged by frost Cold snaps and frosts have hit many orchards and vineyards these last few weeks in France. High yield reduction will be expected due to these cold waves, occurring after weeks of heat and crop development. During dormancy, grapevines can support temperatures as low as -15°C. However, as soon as the vines bud, they ...
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Waste stream utilisation for sustainable viticulture
ABSTRACTField trials were established at four vineyards in January 1999 to evaluate the effects of four mulch mixtures on different soil and plant parameters. Mulches were made from wine industry and other commercially available plant and animal wastes. Soil, grape petioles, grape leaves and grape juice were analysed over three seasons. The mulches applied released considerable quantities of ...
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Ohh Hengelo Ohh Hengelo...
What’s better than installing one Rocket Composter? Only the obvious…. More! Our colleagues and friends in the Netherlands, specifically the municipality of Hengelo asked Tidy Planet to provide their composting equipment for the purposes of proving the feasibility of providing separate household food waste collections. The food wastes would be brought back to the enormous city farm, ...
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How to Scout for Grapevine Leafroll Disease More Accurately and Efficiently Than Ever
In a previous post we discussed how Grapevine Leafroll disease affects grapevines but to quickly recap, Grapevine Leafroll Disease is one of the most common and persistent grapevine diseases; it can have devastating impacts on a vineyard, delaying fruit maturity and dramatically reducing fruit quality, pigmentation, vine vigor, and yield. With no cure for Leafroll, infected vines must be removed ...
By VineView
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Nondestructive measurement of grapevine leaf area by ground normalized difference vegetation index
Vine leaf area index has a great impact on berry quality. This study was conducted to determine whether vine leaf area index could be estimated, and mapped through normalized difference vegetation index (NDVI) ground-based measurements. The NDVI measurements were performed using a Greenseeker (N-Tech Industires, Ukiah, CA and Oklahoma State Univ., Stillwater), pointed sideways at the vertical ...
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PureVine: A Digital Representation of your Vines
This year VineView released an exciting new product called PureVine, that collects and represents data on a vine-by-vine basis. Not only does this provide the opportunity to look at individual vine performance, it also allows a statistical representation of a block expressed in number of vines. In addition, it gives growers information about non-productive vines by analyzing gaps in the canopy. ...
By VineView
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EVI vs NDVI: What’s the difference?
The wine industry has been using aerial imaging to measure vine vigor for decades. It is becoming more and more common for vineyard managers to use vigor maps to support their decision making in the field. These maps most often use the Normalized Difference Vegetation Index (NDVI) to measure vine vigor. NDVI has been the standard in the wine industry since the Mondavi Project in 1992. NDVI is a ...
By VineView
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Tackle Vineyard Variability with Vine Health Predictions
Variability in vine vigour and grape composition makes it difficult for growers to meet uniform quality specifications from winemakers. As a result, growers often have the opportunity to make up to AU$2,155 per hectare for reducing variability. Vineyard variability is driven by climate, features of the land (e.g. topography and soil composition, including moisture content and nutrient ...
By Deep Planet
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3 Reasons you should Collect Aerial Imagery Early & Often
Now that you know the difference between NDVI and EVI, and five ways to improve wine quality using VineView’s vine vigor products, it’s time to discuss when you should be collecting this important data, and how often. The right timing and frequency can help maximize the information and insights you gain from your aerial imagery. Aerial imagery can be such a valuable visual tool ...
By VineView
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5 Ways to Improve Wine Quality with VineView’s Aerial Vigor Maps
Have a conversation with any of the world’s leading winemakers and one thing will quickly become apparent – good wines start on the vine. Vineyard managers know the value of having boots on the ground, constantly scanning for problems throughout the vineyard and ensuring optimal growing conditions for the vines. A high level of attention to detail in the vineyard is one of the best ...
By VineView
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Winemaking - A Must Read
BackgroundThe art and science of winemaking have been around for thousands of years. Winemakers rely on their instincts, palettes, and a thorough knowledge of the nuances involved in every stage of the winemaking process as they strive to achieve the flavors and qualities that they desire.Even a cursory overview of certain elements of the process underscores the critical role played by gases…from ...
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Simulating the Effect of Climate Change on Agriculture
Increased atmospheric CO2 levels and climate change are believed to contribute to extreme weather conditions, which is a major concern for many. And beyond extreme events, global warming is also predicted to affect agriculture.1,2While climate change is expected to affect agriculture and reduce crop yields, the complete effects of climate change on agriculture and the resultant human food ...
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Simulating the Effect of Climate Change on Agriculture
Increased atmospheric CO2 levels and climate change are believed to contribute to extreme weather conditions, which is a major concern for many. And beyond extreme events, global warming is also predicted to affect agriculture.1,2 While climate change is expected to affect agriculture and reduce crop yields, the complete effects of climate change on agriculture and the resultant human food ...
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Precision viticulture technology a key to producing premium quality wines in changing climate [part 2]
In the first part of the article, we wrote about how precision viticulture technologies can help with choosing long-term and short-term cultivation strategies in order to adapt to climate changes, and named some of the precision viticulture technologies that exist on the market. Now let’s have a look at how and which precision viticulture technologies can help with specific vineyard ...
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Precision viticulture technology a key to producing premium quality wines in changing climate [part 1]
Wines are made in the vineyard, which is especially true for premium quality wines. A study by Orley Ashenfelter from Princeton University revealed that the quality of the top Bordeaux vintages is predicted by the weather during the grape growing season. The price follows quality, and as every winegrower tends to maximize profits, it is crucial to work on producing premium quality wines while ...
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Why a Leading Central Coast Vineyard is Transitioning to Organic Production
The transition to organic wine grape growing can be seen as a high-risk process, and growers often wonder if positive results published by academic researchers will actually translate to their bottom lines once implemented in their vineyards. In order to address the concerns about the perceived gap between research and economic success, telling stories which share the lessons learned by people ...
By UAV-IQ, LLC.
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