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Nitrogen Fluxes in Intensive Grassland Systems
G. C. Ennik · Island Press
113 sayfa · 1986
Nitrogen fertilizers / Plants / Pastures / Nitrogen in animal nutrition / Grasses
Competition between legumes and grasses
C. T. de Wit, P. G. Tow, G. C. Ennik · Centre for Agricultural Publications and Documentation
30 sayfa · 1966
Grasses / Research / Legumes