References
- 1. Bertinuson, T. A., E. Larssen, B. Teveris, M. G. Comfort and M. Petersen: Nutrient uptake and dry matter accumulation of Connecticut shadegrown wrapper tobacco for three consecutive years; Tob. Sci. 14 (1970) 155-157.
- 2. Botha, A. D. P.: Determination of the uptake of nitrogen by tobacco plants during their growing period, using the nitrogen isotope 15N; S. Afr. J. Agric. Sci. 8 (1965) 449-454. 152
- 3. Bowman, D. R., and B. C. Nichols: Composition of Burley tobacco leaves in relation to stalk position and leaf portion; Tob. Sci. 12 (1968) 91-94.
- 4. Dirks, B., and F. Scheffer: Z. Pflanzenern., Düngung und Bodenk. 1933, 428.
- 5. Eck, H. V., and J. T. Musick: Plant water stress effects on irrigated grain sorghum, 11. Effects on nutrients in plant tissues; Crop Sci. 19 (1979) 592-598.
- 6. Gopalachari, N. C., M. C. Manga Reddy and K. L. Narasaiah: Dry matter production and nutrient uptake by flue-cured tobacco at different stages of growth in representative. light and heavy soils of Andhva Pradesh; Tob. Res. 4 (1978) 6-11.
- 7. Kroontje, W., A. Badr and H. C. H. Hahne: Growth pattern of Burley 21 tobacco and associated nitrogen and nicotine levels in plant parts; Tob. Sci. 16 (1972) 46-51.
- 8. McCants, C. B., and W. G. Woltz: Growth and mineral nutrition of tobacco; Advances in Agronomy 19 (1967) 211-265.10.1016/S0065-2113(08)60736-1
- 9. Olsen, S. R., C. V. Cole, F. S. Watanabe and L. A. Dean: Estimation of available phosphorus in soils by extraction with sodium bicarbonate; U. S. Dept. Agr. Circ. 939, 1954.
- 10. Raper, C. D., Jr., and C. B. McCants: Nutrient accumulation in flue-cured tobacco; Tob. Sci. 11 (1967) 190.
- 11. Schmidt, J. A.: Feststellung des Nahrstoffentzugs der deutschen Tabaksorten; Dtsch. Tabakbau 55 (1973) 33-37.
- 12. Sims, J. L., and W. 0. Atkinson: Accumulation of dry matter and nicotine content of Burley tobacco growing in fertilizer-induced acid soil; Agron. J. 65 (1973) 762-765.
- 13. Skogley, E. 0., and C. B. McCants: Ammonium and chloride on growth characteristics of flue-cured tobacco; Soil Sci. Soc. Am. Proc., 27 (1963) 391-394.