In this article, the family of exponential type estimators with auxiliary variable is proposed in case non-response scheme for purpose obtaining unknown population mean study variable. This examined under two main cases as Case I and II. Theoretical inferences are obtained detail empirical studies carried out to show appropriateness field agriculture. According results, provide more efficient r...

Global positioning systems (GPS), yield monitors, various forms of remote sensing, new computer software, and variable rate technology are new tools available to producers. Intensive soil sampling and crop scouting methods that directly relate each sample or measurement with their geographical coordinates complement the new technological package. Soil testing is a diagnostic tool that adapts we...