Influence of mineral nitrogen on nitrogen fixation by lupin (Lupinus angustifolius) as assessed by 15N isotope dilution methods

Evans, 1982, Response of soybean-Rhizobium symbiosis to mineral nitrogen, Plant Soil, 66, 439, 10.1007/BF02183813 Evans, 1985, N2 fixation and conservation of soil mineral nitrogen by Lupinus angustifolius, 690 Evans, 1987, Nitrogen fixation and accretion of soil nitrogen by field-grown lupin (Lupinus angustifolius), Field Crops Res., 16, 309, 10.1016/0378-4290(87)90069-4 Herridge, 1982, Use of the ureide technique to describe the nitrogen economy of field-grown soybeans, Plant Physiol., 70, 7, 10.1104/pp.70.1.7 Latimore, 1977, Effect of ammonium and nitrate upon photosynthetic supply and nitrogen fixation by soybeans, Crop Sci., 17, 399, 10.2135/cropsci1977.0011183X001700030015x Rennie, 1976, Natural nitrogen-15 abundance of soil and plant samples, Can. J. Soil Sci., 56, 43, 10.4141/cjss76-006 Sears, 1951, Importance of inoculation, Soybean Dig., 11, 15 Turner, 1987, Differences in the natural abundance of 15N in the extractable mineral nitrogen of cropped and fallowed surface soils, Aust. J. Agric. Res., 10.1071/AR9870015 Weber, 1966, Nodulating and non-nodulating soybean isolines: response to applied nitrogen and modified soil conditions, Agron. J., 58, 46, 10.2134/agronj1966.00021962005800010015x