A great reduction in shoot and root dry matter production was
observed in the second crop in the vineyard soils compared to the reference
soil. In the second crop, the treatmentwithout Zn supplementation
exhibited the greatest production of shoot dry matter among the vineyard
soil treatments, which was 468% greater than in the treatment
supplemented with 270 mg Zn kg−1. The production of root dry matter
in the plants grown in treatments without Zn supplementation was
250% greater than in the plants grown in soil supplemented with
270 mg Zn kg−1.