Estimation of Soil Physico-chemical Properties by On-the-go Measurement of Soil Electrical Conductivity
Year: 2018
Type: article
Abstract: For modern crop management practices, like precision farming, is crucial information about detailed spatial distribution of soil properties.A study was conducted to evaluate the on-the-go measurement of soil electrical conductivity for mapping of agronomical relevant soil properties.Th e experimental work was carried out on the eight fi elds of Rostenice a.s.farm enterprise, located in the South Moravia region of Czech Republic.Th e measurement of apparent electrical conductivity of soil was done by using CMD-1 and CMD-6L instruments (GF Instruments, Czech Republic) in 2013 (117 ha) and 2016 (359 ha).Soil properties were obtained by soil sampling in irregular grid with the density of 1 sample per 3 ha.Soil samples were taken from the depth of 30 cm and analyzed for soil texture (percentage of clay, silt and sand particles), content of available nutrients (P, K, Mg, Ca) and soil organic matter (SOM) content.Th e results of correlation analysis showed diff erences in main sensitivity of EMI to the soil properties across observed fi elds.Most frequent correlation was found in the percentage of clay particles smaller than 0.002 mm (r = 0.598).Th e correlation between EMI and nutrients content in soil and pH value was signifi cant only for few fi elds.Th ese results were obtained for individual fi elds, the aggregated evaluation showed lower relationships to EC. Th ese outcomes showed, that rather than predictor of soil properties could be on-the-go measurement of soil EC used for identifi cation of main zones within the fi elds at high spatial level.
Authors: Vojtěch Lukas, Lubomír Neudert, Jaroslav Novák, Jan Křen
Institution: Mendel University in Brno
Language: English
Subfield: Soil Science
Domain: Life Sciences
SDGs: Zero hunger, Life on land
Open Access status: green
OpenAlex ID: W2795115232