Results showed that grass cover crops reduced nitrogen concentrations as well as yield. Specific viticultural data collected over the three years of the project included yield, cluster weight, clusters per vine, berry weight, berries per cluster, percentage bunch rot, pruning weight, soluble solids, pH, titratable acidity, and a series of nutrient levels. All findings are explained with brief summaries and most are detailed with tables. Mayse described the study as unique in its comprehensive examination of both viticulture and pest management practices. The findings further document and confirm that while cover crops may not offer a dramatic advantage over conventional practices, they help to establish ecological stability in the vineyard.
Ecological stability is the key to preventing outbreaks of unwanted pests.
Our findings indicate that grape growers have numerous alternative practices which should be considered in developing more sustainable viticulture systems. All rights reserved.