PINTO, Nicélia F.; AMARO FILHO, Joaquim.; COSTA, Alexandre A. da.; MOTA, Jaedson C. A.; FERNANDES, Lucimara B.; MEDEIROS, Rommel C. L. de.
Abstract:
The present work had for objective to analyze the enviromenntal impacts in the
physical fertility of Haplusdalf under different times of cultivation. The soil samples was collected in a
farm to distance 40 km of Mossoró, Rio Grande do Norte State. The areas had sampling considering 4
cultivation times, to know: native area and areas with 2, 2,5 and 3 years, in the layers of 0-20, 20-40,
40-60 cm. The laboratory methodologies were used according to EMBRAPA, (1997). The data had
been submitted to the variance analysis, for test F, considering a completely randomized experimental
design, in factorial 4 x 3 (4 cultivation times and 3 depths), with 3 repetitions. It had influence of the
soil cultivation time for all the analyzed variables, except the flocculation degree. How much to the
depth, the variables silt, particles density and the alone porosity and available water had been
remained steady, independently of the soil cultivation time.
