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N Balance Experiments on Fen Grassland With15N Labelled Fertilizer
Isotopes in Environmental and Health Studies, 1997Juergen Augustin, W Merbach, R Russow
exaly
Comparison of N Balance and 15N Isotope Dilution to Quantify N2Fixation in Field‐Grown Legumes1
Agronomy Journal, 1984exaly
Zeitschrift Fur Pflanzenernahrung Und Bodenkunde = Journal of Plant Nutrition and Plant Science, 1998
exaly
exaly

