Ammonium oxalate
Soil water
Shoot
Chemistry
Soil test
Isotope dilution
Nutrient
Ammonium
Diffusive gradients in thin films
Phosphorus
Oxalate
Cation-exchange capacity
Sorption
Agronomy
Environmental chemistry
Soil science
Environmental science
Biology
Adsorption
Inorganic chemistry
Mass spectrometry
Organic chemistry
Chromatography
