CH 4 : Approaches to Grape Growing Flashcards
What is the philosophy of conventional viticulture?
to rise yields and lower labour costs
What techniques do conventional viticulture employ?
mechanisation
chemical inputs
irrigation
clonal selection
what were the benefits of conventional viticulture?
- mechanisation
- less competition with other plants due to monoculture
- more cost effective
what were the disadvantages of conventional viticulture
- monocultures are more disease-prone
- vines become dependent on chemical fertilisers in the absence of a naturally replenishing ecosystem
- residual chemicals can harm workers and the environment
What is the philosophy of sustainable viticulture?
to ensure sustainability in the economic, social, and environmental realms
What are the benefits of sustainable viticulture
- pays attention to the holistic impact of viticulture
- uses a scientific understanding to minimise intervention
- fewer synthetic chemicals
- cost saving by sparing use of chemical resources and emphasis on developping vine hardiness and ecosystem balance
what techniques does sustainable viticulture use?
- IPM
- careful vineyard observation to pre-empt problems
what techniques does organic viticulture use/
- compost fertiliser
- natural fertiliser
- cover crops
- reduction of monoculture
how would an organic vineyard combat mildews?
sulphur and copper sprays (Bordeaux mix)
What are the benefits/drawbacks of organic viticulture?
- improves soil health and vine immunity
- saves cost on synthetic chemicals
- possible yield loss in difficult years
- cost of certification
- more labour costs potentially
Explain precision viticulture
it rejects a uniform approach and uses sophisticated surveillance to target specific problems like canopy vigour, disease, and harvest times.
what techniques are used in precision viticulture?
proximal data collection through tractors etc.
remote data collection through GPS, geospatial technologies, cameras
looking for information on soil composition, rate of canopy growth etc.
what is variable rate application technology/
a technique found in PV where vineyard interventions are targeted to specific areas based on collected data.
give two examples of how a vingneron would use PV
changing rootstocks midway through rows in high to low vigour soils
increasing pruning in vineyard areas that show high vigour
What is the difference between remote and proximal data collection?
used in PV.
remote uses GPS, geospatial technologies, and cameras
proximal uses more close up observation systems through tractors etc.
