3 Soil survey specifications 4 3.1 DSM survey checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3.2 Statistical inference and use of spatial covariates . . . . . . . . . . . . . . . 7 3.3 Generating a sampling plan . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.4 Data collection protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3.5 Ex ante and ex...

iii CHAPTER 1: LITERATURE REVIEW AND THESIS OUTLINE 1 CHAPTER 2: SURVEY OF GRAIN AMARANTH PRODUCTION AND SOIL PROPERTIES IN KAMULI DISTRICT OF UGANDA 48 CHAPTER 3: ORGANIC GRAIN AMARANTH ON-STATION EXPERIMENTS IN UGANDA 76 CHAPTER 4: ORGANIC GRAIN AMARANTH ON-FARM EXPERIMENTS IN UGANDA 139 CHAPTER 5: CONCLUSIONS AND RECOMMENDATIONS 176 APPENDIX I: AMARANTH SURVEY 187 ACKNOWLEDGEMENTS 189

Basalt outcrops are significant features in the Western United States and consistently present challenges to Natural Resources Conservation Service (NRCS) soil mapping efforts. Current soil survey methods to estimate basalt outcrops involve field transects and are impractical for mapping regionally extensive areas. The purpose of this research was to investigate remote sensing methods to effect...

Land surveys of soil attributes can provide valuable information on the geographic distribution of important soil attributes and summarize the levels found. Landscape position can have a major influence on soil attributes. Consideration of field landscape variables in selecting sampling locations and interpreting results, even in large-scale surveys, should help to reduce unexplained variabilit...

While it is widely accepted that lead-based paint and leaded gasoline are primary sources of elevated concentrations of lead in residential soils, conclusions regarding their relative contributions are mixed and generally study specific. We develop a novel nonlinear regression for soil lead concentrations over time. It is argued that this methodology provides useful insights into the partitioni...

Based on the limited resources available to algal flora in Yazd province in the center of Iran, cultivation, purification and identification of soil algae from seven sites was performed in summer 2013. The soil samples were processed for analysis of Cd, Pb contents. The present paper attempts to analyze survey of soil blue-green algal identification in different types of stations, using morphol...

A survey on the incidence of Salmonellae in soil was conducted on 12 kindergartens in. the Klang District, The organism. was isolated from fioe (three urban and two rural) kindergartens from one or more soil samples tested. Ten isolates comprising six serotypes, namely, Salmonella bareilly, S.haifa, S.abony, S.weltevreden, S.agona and S.stanley, were encountered. The possible role that these so...

Detecting salinity in early stages using electromagnetic survey and multivariate geostatistical techniques. This research is aimed at increasing the accuracy of detecting soil salinity in early stages of the process. This phenomenon develops at depth; optical remote sensing (e.g. satellite images) cannot be useful in detecting subsoil variability. Therefore Electromagnetic (EM) survey, using EM...

While it is widely accepted that lead-based paint and leaded gasoline are primary sources of elevated concentrations of lead in residential soils, conclusions regarding their relative contributions are mixed and generally study specific. We develop a novel nonlinear regression for soil lead concentrations over time. It is argued that this methodology provides useful insights into the partitioni...