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- [21] Distribution of fertiliser N among fixed ammonium fractions as affected by moisture and fertiliser source and rate Biology and Fertility of Soils, 2007, 44 : 9 - 18
- [26] The copper sulphate-ammonium oxalate-ammonium system ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1928, 173 (02): : 222 - 224
- [28] The growth of clover in the presence of ammonium sulphate JOURNAL OF AGRICULTURAL SCIENCE, 1936, 26 : 263 - 267
- [29] The use of gypsum in the making of ammonium sulphate COMPTES RENDUS HEBDOMADAIRES DES SEANCES DE L ACADEMIE DES SCIENCES, 1927, 185 : 1138 - 1141
- [30] PRODUCTION OF AMMONIUM SULPHATE AND MANGANESE OXIDES TRANSACTIONS OF THE AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS, 1950, 187 (03): : 391 - 394