Chemical characteristics of soil cultivated with vine and submitted to nitrogen and organic fertilization at the semiarid of the Rio Grande do Norte State, Brazil

摘要: A probable reason for the scarce levels of N in soils semi-arid regions would be low organic matter these soils. In this way, aim present study was to evaluate effects nitrogen and fertilization their interaction on chemical properties cultivated with ‘Isabel Precoce’ vines semiarid oh Rio Grande do Norte State, Brazil. The experiment carried out at Experimental Farm Federal Rural University Semi-arid Region, Mossoro, RN. soil area is classified as a Distrofic Red Argisol sandy texture. research two cycles grape production. accomplish randomized blocks design, six repetitions, 5 x 2 factorial scheme, corresponding doses (0, 30, 60, 90 120 kg ha-1), absence presence 0 20 m3 ha-1, bovine manure). Samples 0-20 cm layer were collected evaluation macro micronutrient contents, pH, electric condutivity, sum bases. influenced atributes evaluated. between fertilizer resulted an increase nutrient, bases content. responsible reducing pH levels, resulting higher amounts nutrients availability.