engleski

Potential of grapevine pruning residues for biochar production

In the context of climate change, grapevine with its production has a major effect on global pollution through greenhouse gasses. The reason is the fact that in the production can be found several pruning waste management practices like burning or chipping and mulching. To solve that problem, in last years production and use of biochar from pruning residues has been intensively researched. In this work pruning residues of indigenous variety 'Istrian Malvasia' grafted on 420A and SO4 rootstocks were analyzed and used for biochar production. Pruning wood and biochar samples were analyzed using ICP-OES technique after microwave digestion. Based on the obtained results, we can conclude that produced biochar is a nutrient rich material which can be used as soil amendment. The amount of individual elements in the produced biochar changed in relation to pruning residues. Differences were also spotted depending on the rootstock on which is grafted 'Istrian Malvasia'. The proposed method for pruning residues conversion to biochar presents an effective method to reduce the negative viticulture impact on climate change.

pruning residues, biochar, rootstock, grapevine nutrition

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