Onderzoekingen over de methodiek bij kalibepalingen in grond Authors de Vries, O. Hetterschij, C.W.G. Publication Date Jan 01, 1945 Source Wageningen University and Researchcenter Publications Keywords Potassium Quantitative Techniques Soil Soil Analysis Soil Solution Bodem Bodemoplossing Grondanalyse Kalium Kwantitatieve Technieken Language Dutch License Unknown External links Full record on research.wur.nl