| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 1.41 MB | Adobe PDF |
Advisor(s)
Abstract(s)
The effects of fully mechanized pruning systems on physiology, vigor and yield of grapevines
have been studied for more than forty years and are an interesting way to reduce production costs.
Organic amending of vineyard soil is a way to increase vine productivity. Thus, this study aims to
understand the effects of the interaction between these two practices, on vine growth and productivity.
Two trial fields were implemented on Shiraz vineyards in 2 different wine regions. Mechanical hedge
pruning was compared with hand spur pruning and four different organic amendments were tested:
biochar; municipal solid waste compost; cattle manure; sewage sludge. Mechanical pruning and
organic amendments, by themselves, did not significantly increase yield. However, the interaction
between both factors reduced the impact of self-regulation mechanisms (budburst, bud fruitfulness
and cluster weight) in mechanical pruning and successfully increased yield, without decreasing
vegetative growth. The effects of mechanical pruning with the application of organic amendments to
soil on yield is significant and, thereby, the choice of the organic amendment and its amount, must be
done considering the destiny of produced grapes
Description
Keywords
cattle manure dry mass production leaf area municipal solid waste compost sewage sludge water availability yield
Pedagogical Context
Citation
Agronomy 2020, 10, 1090
Publisher
MDPI