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4Copper chloride as an extractant for estimating the potentially reactive aluminum pool in acid soilsJournal Article bibliotecaCGIAR
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15Farming systems research relevant to the humid tropics, with special reference to tropical Africa Farming systems research relevant to the humid tropics, with special reference to tropical Africaby 84657 Lal, R., Workshop on Farming Systems Research 17-21 de Febrero, 1986 : Patancheru, India 39242, 81895 Juo, A.S.R., 44767 Ashraf, M., 9454 ICRISAT, Andhra Pradesh (India)
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16by 67814 Fisher, R.F., 81895 Juo, A.S.R., 66059 Evans, D.O., 122677 Szott, L.T. eds., 15144 Nitrogen Fixing Tree Association, Morrilton, Ark. (EUA), CATIE - Centro Agronómico Tropical de Investigación y Enseñanza Turrialba, Costa Rica autor/a 3977, Workshop on Nitrogen Fixing Trees for Acid Soils Turrialba (Costa Rica) 3-8 Jul 1994
Published 1995bibliotecaIICA