Author(s): FIORELLI, L.; ZALAMENA, J.; IWAMOTO, H.; ZIERO, H. D. D.; VIEIRA, J. L.; NETO, J. A.; MELO, G. W. B. de

Summary: The growth fertilizer recommendation for grapevine is mainly based on using mineral fertilizers, which only recommends the application of nitrogen. However, using organic fertilizers is getting more popular in agriculture. It benefits the environment because it is a natural process, promotes organic matter recycling, and also helps the edaphic fauna, as well as worms, beetles, fungi with beneficial bacteria. With the objective to compare the organic and the mineral fertilizer during the initial growth of the Paulsen 1103 (berlandieri x rupestres) rootstock and, posteriorly, the leaves nutritional composition and the production of dry matter from the branches of the Cabernet Sauvignon graft, it has been developed as an experiment in the field, at Embrapa Uva e Vinho dependencies, Bento Gonçalves, Rio Grande do Sul, Brazil, in Neossolo Litólico soil, using an experimental design of random blocks with 5 repetitions, with the experimental plot constituted by 32 Paulsen 1103 rootstocks, planted in July 2013, with 2,5m spacing between lines and 1,3m between each rootstock and conducted in a vertical trellis system. The treatments by the application consisted of 20 kg ha-1 of N, as nitrate, using calcium nitrate sources 17% of N) and the organic compost (density of 0,6 kg L-1, 1,54% of N total with 0,1 % of N-NO3, 0,52% of P, 2,38% of K, 8% of Ca, 0,29% of Mg).

Publication year: 2016

Types of publication: Abstract in annals or event proceedings

Unit: Embrapa Grape & Wine

Keywords: Adubacao, Fertilizante, Grapevine growth, Mineral fertilizing, Uva, Videira