Insumos alternativos no manejo sustentável da videira BRS violeta

Abstract

Nowadays, Brazil needs to increase its agricultural production in a sustainable way. This country depends on imported fertilizers and it is a major barrier to the vertiginous increase of the profitability and productivity of Brazilian agricultural products. Therefore, the adoption of products that can be obtained locally would increase fertility, decrease the external dependence and foment the local economy.The objective of this work was to evaluate the effect of alternative fertilization on avian litter bed in the cultivation of BRS violet vine, comparing its use with conventional fertilization.The present work was developed in the agricultural year 2017/2018, in the experimental area of Federal University of technology Paraná, UTFPR, Campus Pato Branco, with the objective of evaluating soil fertility, agronomic and yield aspects of violet BRS vines. 10 different treatments were used: T1, T2, T3 and T4: with progressive doses of poultry bed without mineral supplement, T5, T6, T7 and T8: mineral supplement with FNG (natural phosphate of gafsa) + K2SO4 (potassium sulphate) + progressive doses of poultry bad, T9: Urea + SFT + KCl (traditional fertilization) and T10: Absolute control without fertilization. All treatments were randomly distributed in four experimental blocks. Each experimental unit is composed of 9 plants, in which 2 at the ends are the border, with a dimension of 2 m wide and 9 m long (18 sqm). The organic fertilization had positive effects on productive aspects as well as soil quality, also maintained parameters very similar to conventional fertilization. The addition of potassium sulphate and natural phosphate of gafsa did not alter the parameters of productivity, but changed those of soil quality, mainly K. In general, the experiment showed an improvement of productive aspects with the alternative fertilization and this trend could consolidate if the experiment were repeated for more years.