Vineyard restructuration using organic- inorganic fertilizers and biostimulants

Abstract

The constantly changes in customer preference and the market trends in wine sector, the development of precision agriculture and climate change has led to need for rapid adaptation of the grape producers. One of the few adaptive ways which is a solution to all aforementioned problems is vineyard restructuration. Also, new politics and laws they are pressing towards sustainable and environmentally friendly solutions. This research comes to investigate the fastest way of replanting an old vineyard using organic-inorganic fertilizer and biostimulants. Specifically, we test it a common chemical fertilizer 8-8-8+M.C and organic fertilizer from leonardite and two products with beneficial microorganisms (one with mycorrhiza “Click Nature” and one with mycorrhiza and trichoderma “Click Horto”). Each treatment was evaluate depending the plant height, branching ability, leaf size, S.P.A.D and N.D.V.I. In addition, verification analyses were performed (soil analyses and qPCR) to examine in further detailed each treatment and their effect, aiming for accurate comparison. The results showed that the treatment “Click Horto” (Mycorrhiza and trichoderma) even though it created antagonistic condition, resulting an overall lower microbial activity, achieved better plant establishment and development, while simultaneously achieving better soil fertility from the other treatments.