Produtividade e qualidade da uva Bordô e crescimento de portaenxertos de videira

Abstract

The vine is a crop with great adaptability, because it has a variety of varieties and products. However, the production of seedlings and maintenance of vineyards increasingly requires refined techniques, with proper management of the crop and concern for the environment. Within this context we have biofertilizers, which are liquid organic fertilizers, which can be made from cattle manure through vermicomposting, used in fertilization or as nutritional treatments on the desired crops. Therefore, the objective was to verify the effect of the use of liquid humus on the vine culture. Thus the thesis comprises three articles, two of them developed at Embrapa Temperate Climate and Embrapa Grape and Wine, and the third on an agroecological property in the municipality of São Lourenço do Sul, between 2015 and 2018. Article one evaluated the vegetative and root growth of Paulsen 1103 rootstock on the application of different concentrations of liquid humus and substrates. Where concentrations of liquid humus influenced the vegetative growth of the Paulsen 1103 grapevine rootstock seedlings, while the more stems of grape stalk promoted a greater length and number of roots. For Paulsen 1103 rootstock when grown in soil, the concentrations of liquid humus should be higher than in the peat plus grape stalk substrate. In article two we evaluated the different frequencies of application of liquid humus and substrates in the vegetative and root growth of the Paulsen 1103 and SO4 grapevine rootstocks. The frequency of application of combined liquid humus to the substrates proved to be effective for root length. The ECT substrate provided greater vegetative growth in both rootstock and in the cluster the frequencies of application of liquid humus of 7 and 21 days were efficient in the growth of the SO4 rootstock seedlings. In article there we evaluated the quality and yield of Bordeaux variety submitted to different concentrations of liquid humus and vegetation cover. The concentration of 15% liquid humus was more effective for yield, the use of mulch influenced the physical variables and the combination of liquid humus and mulch were positive for the yield of the Bordeaux variety in agroecological system. However there should be further studies related to liquid humus in viticulture.