Für eine raumund zeitübergreifende Betrachtung von Bodenleitfähigkeitsmessungen sind die Absolutwerte von EM38 Messungen häufig unbrauchbar. Zwei Standardisierungen zur Nutzung der Messwerte für einen Data Mining Ansatz (zur Ertragsprognose) wurden entwickelt und sollen zukünftig für mehrjährige Trainingsdaten unterschiedlicher Schläge verwendet werden. Die Standardisierungen basieren auf mittl...

In coastal China, there is an urgent need to increase land area for agricultural production and urban development, where there is a rapid growing population. One solution is land reclamation from coastal tidelands, but soil salinization is problematic. As such, it is very important to characterize and map the within-field variability of soil salinity in space and time. Conventional methods are ...

High quality three-dimensional (3-D) earth data is very important for environmental assessment studies, precision agriculture and water quality simulation modeling. In the present study, the soil apparent electrical conductivity (ECa) inversed by the EM38 linear model from aboveground EM38 measurements were selected as the data source of 3-D spatial variability. Firstly, the sphere model which ...

Soil salinization is a major problem affecting soils and threatening agricultural sustainability in arid semi-arid regions, which makes it necessary to establish an efficient strategy manage soil salinity confront economic challenges that arise from it. Saline recovery involving drainage of shallow saline groundwater the removal salts by natural rainfall or irrigation are good strategies for re...

Precise adjustments of farm management activities, such as irrigation and soil treatment according to site-specific conditions, are crucial. With advances in smart agriculture sensors, it is possible reduce the cost water inputs but still realize optimal yields high-profit returns. However, achieving precise application requirements cannot be efficiently practiced with spatially disjointed info...

Soil apparent electrical conductivity (ECa) has been used as a surrogate measure for such soil properties as salinity, moisture content, topsoil depth (TD), and clay content. Measurements of ECa can be accomplished with commercially available sensors and can be used to efficiently and inexpensively develop the dense datasets desirable for describing within-field spatial variability in precision...