Insitu soil tests in general have the advantage of allowing measurements under the field environmental conditions with minimum amount of soil disturbance due to sampling. A comparison of continuous dynamic probing with the SPT has been made for a study case of highly weathered limestone in Eastern Sudan. The correlation between the two test results is obtained in terms of penetration resistance...

Water penetration in many California orchards and vinyards is a serious management problem. Chemical properties of soils related to their aggregate stability and crust strength were measured to determine if one or more properties could be used to predict crusting. None of the measured properties, including aggregate stability, texture, organic matter, and various forms of iron, aluminum, or sil...

Lake sediment characterization, a prerequisite for the vulnerability assessment of lake ecosystems, demands reliable in situ methods for the characterization of the sediment layer composition. A unified characterization of lake sediments within lake ecotopes (open water, open water patches within the reed, and the reed) is still a challenge. Each ecotope is covered by different classical scient...

1. Abstract Soil tillage is considered one of most important practices in agricultural production due to its influence on physical, chemical, and biological properties of the soil environment. The effect of a long-term tillage [no-till (NT), spring till (ST), and fall and spring till (FST)] was investigated on soil penetration resistance (PR), bulk density (BD), gravimetric water content (GWC) ...