02271nam a2200241 a 450000100080000000500110000800800410001910001070006024500470016726000480021430000100026249000460027250000270031852015410034565000220188665000170190865000090192565300210193465300090195565300220196465300270198665300160201313303952014-10-30       1995    bl uuuu  de  00u1 u    #d1 aESTADOS UNIDOS. Department of Agriculture. Natural Resources Conservation Service, (Washington, D.C.).  aSoil survey laboratory information manual.  aLincoln : National Soil Survey Centerc1995  a305p.  a(Soil Survey Investigation Report, n.45).  aVersion 1.0, May 1995.  aThe Soil Survey Laboratoty (SSL), National Soil Survey Center (NSSC) is responsible for providing accurate and reliable soil characterization data for the National Resource Conservation Service (NRCS) National Cooperative Soil Survey (NCSS) Program. The SSL data are provided in reports, e.g., Primary and Supplementary Characterization data Sheets and in various electronic forms, including tapes, disks, and CD-ROMs.  These reports are the end product of the analytical system and are a means to transmit information to the users of these data. It follows that these data reports must be complete, accurate, and understandable. In addition, these reports provide historical documentation for futurereference. Pedon characterization data, or any soil survey data, ...or any soil survey data, are more appropriately used when the operations for collection, analysis, and reporting these data are thoroughly understood. The purpose of this document is to describ the SSL characterization data reports to maximize user understanding of these data. This document is not intended as an interpretive guide for soil characterizantion data. Included in this document is a brief discussion of sampling methodology and its role in soil analysis. While the defintions,protocols, and applications of varius types of samples and sampling plans are beyond the scope of this document, the importance of sampling as a critical step to successful soil analysis is described. After thediscussion on sampling is the description of the SSL data Sheets ...  aAnálise de Dados  aLevantamento  aSolo  aCharacterization  aData  aLaboratory methds  aMetodos de laboratorio  aSoil survey