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- [5] MINERALIZATION OF NITROGEN IN GRASS ROOTS SOIL SCIENCE SOCIETY OF AMERICA PROCEEDINGS, 1968, 32 (05): : 673 - &
- [6] THE EFFECT OF RATE AND TIME OF APPLICATION OF NITROGEN IN COW SLURRY ON GRASS CUT FOR SILAGE AGRICULTURAL WASTES, 1986, 15 (04): : 253 - 268
- [7] Effect of sulfur upon nitrogen content of legumes INDUSTRIAL AND ENGINEERING CHEMISTRY, 1926, 18 : 72 - 73
- [8] EFFECT OF GRASS ROOTS ON SOIL-NITROGEN NET MINERALIZATION REVUE D ECOLOGIE ET DE BIOLOGIE DU SOL, 1988, 25 (03): : 261 - 277