Tob. Sci., 1992, 36-16, p. 57-60, ISSN. 0082-4523, Tob. Reporter, 1992, 119-12, p. 55-8
Effects of nitrogen source and soil acidity on nitrogen use efficiency and growth of flue-cured tobacco
CAO Zhi-Hong; MINER G.S.; WOLLUM A.G., II
Institute of Soil Science, Academia Sinica, Nanjing, P.R. China; Dept. of Soil Science, North Carolina State University, Raleigh, NC, USA
Yield and quality of flue-cured tobacco (Nicotiana tabacum L.) are often reduced by (NH4)2SO4 on acid soils. Urea is a less acid-forming source of ammonium than (NH4)2SO4 and may be a better source of plant nitrogen than (NH4)2SO4 under acid soil...