 | Francisco Jiménez O., Arturo Vargas F. - 1998 - 376 páginas
Ph.D. dissertation , Soil Science Dept. , North Carolina State University , Raleigh , N.C. 168 p . SZOTT , C. R .; PALM , C. A .; SANCHEZ , P. A. 1991a . Agroforestry on acid soils of the humid tropics . | |
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127litrogen release i as affected by Biology and Szott L. and fractions under volcanic soil . 1 1-320 . itrogen fixation al agriculture . oforestry pathng ... and Sanchez P. A. ( 1991 ) Agroforestry in acid soils of the humid tropics . | |
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The International Council for Research in Agroforestry . Work Paper No. 7. Nairobi , Kenya . 1985. 383 p . Research Sánchez . Szott , L.T. , C.A. Palm , and P.A. Agroforestry in Acid Soils of the Humid Tropics Advance in Agronomy . | |
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Agroforestry in acid soils of the humid tropics . Advanc . Agron . 45 , 275-300 13. Vergara , N.T. 1987. Agroforestry : a suitable land use for fragile ecosystems in the humid tropics . In : Agroforestry , Realities , Possibilities and ... | |
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Agroforestry systems for acid soils in the humid tropics . Advances in Agronomy . . ALVIM , P. 1959. Recientes progresos en nuestro conocimiento del árbol de café . I. Fisiología . En : Materiales de enseñanza en café y cacao . | |
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Soil Sci . ( Edmonton ) 2 : 272-291 . Munns , D.N. 1978. Soil acidity and nodulation . ... Soil fertility and conservation considerations for agroforestry systems in the humid tropics of Latin America . In : H.O. Mongi and P.A. Huxley ... | |
 | 2004 - 866 páginas
Agroforestry in acid soils of the humid tropics . Advances in Agronomy 45 : 275-300 . Unruh , J.D. 1990. Iterative increases of economic tree species in managed swidden - fallows of the Amazon . Agrofor . Sys . 11 , 175-197 . | |
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Agroforestry in acid soils of the humid tropics . Advances in Agronomy 45 : 275-300 . Unruh , J.D. 1990. Iterative increases of economic tree species in managed swidden - fallows of the Amazon . Agrofor . Sys . 11 , 175-197 . | |
 | Marielos Alfaro - 1994 - 304 páginas
The most common soils in the humid tropics ( NRC 1992 ) are oxisols and ultisols . Oxisols , which are generally acidic , low in phosphorous , nitrogen and other nutrients , are for the most part found in South America . | |
 | Jochen Heuveldop - 1983 - 108 páginas
Effects : In the tropical rainforest , most nutrients are held in the vegetative biomass , whereas the soil has a very low ... As in large areas of the humid tropics in West Africa , acid , sandy soils predominate ( ultisols ) . | |
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