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Waste stream utilisation for sustainable viticulture.

R H Agnew1, D C Mundy, T M Spiers

  • 1The Horticulture and Food Research Institute of New Zealand Ltd, Marlborough Wine Research Centre, Blenheim, New Zealand. ragnew@hortresearch.co.nz

Water Science and Technology : a Journal of the International Association on Water Pollution Research
|March 18, 2005
PubMed
Summary

Mulching grapevines with plant and animal waste significantly improved soil nutrients and plant health. The greatest benefits were observed when comparing mulched versus non-mulched treatments, highlighting mulch

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Area of Science:

  • Viticulture and Soil Science
  • Agricultural Waste Management

Background:

  • Grapevine cultivation relies on optimal soil conditions and nutrient availability.
  • Sustainable vineyard management seeks effective methods to enhance soil fertility and plant nutrition.

Purpose of the Study:

  • To evaluate the impact of diverse mulch mixtures derived from waste materials on vineyard soil and grapevine parameters.
  • To assess nutrient release and plant uptake following mulch application over three growing seasons.

Main Methods:

  • Field trials conducted across four vineyard sites over three consecutive seasons.
  • Application of four distinct mulch mixtures composed of plant and animal wastes.
  • Analysis of soil, grape petioles, leaves, and juice for key nutrient parameters.

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Main Results:

  • Mulch application significantly increased soil pH, phosphorus, and potassium levels, particularly in the first year.
  • Petiole and leaf nutrient levels (nitrogen, potassium) showed increases, though juice potassium varied significantly by season and site.
  • The most substantial differences in measured parameters were observed between mulched and non-mulched treatments, rather than among different mulch types.

Conclusions:

  • Mulching with waste materials is an effective strategy for improving soil nutrient status in vineyards.
  • While mulch type had minimal impact, the presence of mulch generally enhanced grapevine nutrition.
  • Rainfall patterns significantly influenced nutrient level variations across seasons, impacting year-to-year results.