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Nitrogen Fertilization for Optimizing the Quality and Yield of Shade Grown Cuban Cigar Tobacco: Required Nitrogen Amounts, Application Schedules, Adequate Leaf Nitrogen Levels, and Early Season Diagnostic Tests

, Geneva, Switzerland, 2001. 33. Plant analysis as a guide to the nutrients requirements of temperate and tropical crops; edited by P. Martin-Prével, J. Gagnard, and P. Gauter. Lavoisier éditions, France, 1987, pp. 124–141. 34. Torrecilla, G. and L.A. Pino: Coeficientes para calcular el área foliar en variedades de tabaco negro (in Spanish with English abstract); Cienc. Técn. Agric. Tabaco 4 (1982) 17–25. 35. Lichtenthaler, K.H.: Chlorophylls and carotenoids: Pigments of photosynthetic

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Radiotracer investigation of a pulp and paper mill effluent treatment plant

Energy Agency. (2011). Radiotracer applications in wastewater treatment plants . Vienna: IAEA. (Training Course Series No. 49). Available from http://www-pub.iaea.org/books/IAEABooks/8552/Radiotracer-Applications-in-Wastewater-Treatment-Plants . 10. Koennecke, H. G., Luther, D., Koepping, K., Schoen, J., & Ulrich, H. (1984). Studies of the hydrodynamic properties in biological clarification plants using radiotracers. Clean-Soil, Air, Water , 12 (4), 431–434. DOI: 10.1002/aheh.19840120416. 11. Othman, N., & Kamarudin, S. K. (2014). Radiotracer technology

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