TY - BK AU - Bartholomew,W.V. AU - Clark,F.E. TI - Soil nitrogen T2 - ASA Agronomy Monographs U1 - 631.84 PY - 1965/// CY - Madison, WI (USA) PB - ASA, KW - Ammonium nitrate KW - Clay soils KW - Degradation KW - Environmental factors KW - Inoculation methods KW - Inorganic compounds KW - Legumes KW - AGROVOC KW - Mineral soils KW - Nitrogen fixation KW - Nitrogen metabolism KW - Organic nitrogen compounds KW - Soil biology KW - Nitrogen fertilizers N1 - Illustrations, tables, graphs, references, index p. 607-615 ER -