Avaliação das práticas agroecológicas aplicadas no manejo do solo em um cultivo de videiras no cariri paraibano.

Abstract

The cultivation of vines in the semi-arid region is already a reality and presents good prospects for growth, but there is still little information on soil management and the use of plants as green manure in the vineyards. The use of soil management techniques aims to improve both the productive system of the vines and the availability of nutrients in the soil. Since the soils of the Paraíba cariri, due to their location in the semi-arid region, are poor in organic matter, mainly in nitrogen, besides presenting high levels of sodium, which hinders the productive development of some plants. The objective of this work was to evaluate the effect of four legume varieties (Crotalaria juncea, black mucuna, cunhã and pigeon pea) used as green manure, in the municipality of Sumé, consortium with Atriplex nummularia which is a halophyte plant used in phytoremediation of saline soils. For the evaluation of the effects of legumes and Atriplex nummularia, monthly collections of irrigation water and soil samples were collected and collected annually in the 0-20 and 20-40 (cm) layers. The results of the chemical analysis of the soil revealed the contribution of the practices adopted both with the use of legumes and composting, and with Atriplex nummularia, which allowed the increase in M.O. and macronutrients such as (Ca, Mg, K, P), and the decrease in sodium levels with the use of Atriplex nummular.