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Results for “calcium content”
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Q&A: Tackling calcium crystals in wine
Calcium instability in wine is a complex issue influenced by various factors. Dr Sami Yammine answers the most significant questions related to calcium crystals in wine and provides guidance on how to prevent them.
By Laffort · 7 min read
Resolutions adopted by OIV
The 15th General Assembly of the International Organisation of Vine and Wine (OIV), which met on 2 June 2017 in Sofia (Bulgaria), adopted a total of 22 resoluti
By OIV · 8 min read
Managing for optimum root health
Plant health is dependent on root health which is ultimately dependent on soil health.
By Prabashnie Ramouthar · 19 min read
Recompaction of soil in existing vineyards - causes and upliftment methods
Recompaction of the prepared soil before establishment is unavoidable due to normal soil processes, management practices and cultivation practices in the vineyard.
By Johan de Jager & Bennie Diedericks · 12 min read
Treated municipal wastewater for irrigation (Part 1): Irrigation application and water quality
This study’s objectives were to assess the quality of treated municipal wastewater (TMW) used for irrigation of commercial vineyards and to quantify the amount of plant nutrients applied via TMW irrigation.
By Carolyn Howell, Karla Hoogendijk, Philip Myburgh, Vink Lategan & Eduard Hoffman · 15 min read
Treated municipal wastewater for irrigation (Part 4): Soil chemical responses
This study’s objective was to assess the effects of long-term irrigation with treated municipal wastewater (TMW) on soil chemical properties in commercial vineyards in the Coastal region of the Western Cape.
By Carolyn Howell, Karla Hoogendijk, Philip Myburgh, Vink Lategan & Eduard Hoffman · 18 min read
In-field fractional use of winery wastewater with raw water (Part 2): Irrigation application, water quality and nutrient load
The primary objective of this project was to assess the fitness for use of winery wastewater for irrigation of different soil types with varying rainfall quantities and leaching levels on vineyard performance in terms of yield and quality under field conditions.
By Carolyn Howell & Reckson Mulidzi · 19 min read
Vine and wine innovation watch: The use of carrageenan in calcium tartrate and protein stabilisation of wines
Research is focused on discovering new potential stabilisers that can reduce the likelihood of calcium tartrate precipitation.
By Karien O'Kennedy · 6 min read
In-field fractional use of winery wastewater with raw water (Part 4): Grapevine and wine responses
The objective of this study was to determine the effect of irrigation with in-field fractional use of winery wastewater with raw water on grapevine growth, yield and wine characteristics.
By Carolyn Howell & Reckson Mulidzi · 26 min read
Winery wastewater irrigation (Part 1): Annual dynamics of volumes and quality at two wineries
The objective of this study was to investigate the annual dynamics of winery wastewater volumes and quality at two different wineries.
By Reckson Mulidzi & Carolyn Howell · 18 min read
