1. Aggregation studied by laser diffraction in relation to plowing, soil organic matter, and lime in the Brazilian CerradosSustainable land management of the oxisols of the Latin American savannas: dynamics of soil organic matter and indicators of soil quality

by Griethuysen, C. van; Ayarza, M.A; Vilela, L; Zech, W; Westerhof, R; Buurman, P; Thomas, R; Ayarza, M.A. eds. -- CIAT, Cali (Colombia)

Publisher: Cali (Colombia) 1999Availability: No copies available Actions: Add to cart
2. Carbon fractions as sensitive indicators of quality of soil organic matterSustainable land management of the oxisols of the Latin American savannas: dynamics of soil organic matter and indicators of soil quality

by Ayarza, M.A; Zech, W; Westerhof, R; Vilela, L; Thomas, R; Ayarza, M.A. eds. -- CIAT, Cali (Colombia)

Publisher: Cali (Colombia) 1999Availability: No copies available Actions: Add to cart
3. Characterizing labile and stable nitrogenSustainable land management of the oxisols of the Latin American savannas: dynamics of soil organic matter and indicators of soil quality

by Ayarza, M.A; Zech, W; Westerhof, R; Vilela, L; Thomas, R; Ayarza, M.A. eds. -- CIAT, Cali (Colombia)

Publisher: Cali (Colombia) 1999Availability: No copies available Actions: Add to cart
4. Distribution of water-stable aggregates and aggregating agents in oxisols of the Brazilian CerradosSustainable land management of the oxisols of the Latin American savannas: dynamics of soil organic matter and indicators of soil quality

by Resck, D.V.S; Zech, W; Neufeldt, H; Ayarza, M.A; Thomas, R; Ayarza, M.A. eds. -- CIAT, Cali (Colombia)

Publisher: Cali (Colombia) 1999Availability: No copies available Actions: Add to cart
5. Introduction: sustainable land management for the oxisols of the Brazilian CerradosSustainable land management of the oxisols of the Latin American savannas: dynamics of soil organic matter and indicators of soil quality

by Thomas, R; Neufeldt, H; Zech, W; Thomas, R; Ayarza, M.A. eds. -- CIAT, Cali (Colombia)

Publisher: Cali (Colombia) 1999Availability: No copies available Actions: Add to cart
6. Labile N and the nitrogen management index of oxisols in the Brazilian CerradosSustainable land management of the oxisols of the Latin American savannas: dynamics of soil organic matter and indicators of soil quality

by Ayarza, M.A; Zech, W; Westerhof, R; Vilela, L; Thomas, R; Ayarza, M.A. eds. -- CIAT, Cali (Colombia)

Publisher: Cali (Colombia) 1999Availability: No copies available Actions: Add to cart
7. Metodología práctica para la identificación de sitios para reforestación en la zona norte de Costa Rica, en especial con melina y laurel

by Zech, W. -- Cooperación en los Sectores Forestal y Maderero, San José (Costa Rica). Convenio Costarricense/Alemán - CONSEFORMA

Publisher: San José (Costa Rica) 1994Availability: No copies available Actions: Add to cart
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8. Microbial biomass, microbial activity, and carbon pools under different land-use systems in the Brazilian CerradosSustainable land management of the oxisols of the Latin American savannas: dynamics of soil organic matter and indicators of soil quality

by Ayarza, M.A; Resck, D.V.S; Zech, W; Renz, T.E; Neufeldt, H; Thomas, R; Ayarza, M.A. eds. -- CIAT, Cali (Colombia)

Publisher: Cali (Colombia) 1999Availability: No copies available Actions: Add to cart
9. Analítica Mineral deficiencies of forest trees in Yucatan (Mexico) and consequences for land-use

by Zech, W; Drechsel, P; Neugebauer, B.

Source: Turrialba (IICA) Publisher: (Abr-Jun 1991)Online Access: Es | Es Availability: No copies available Actions: Add to cart
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10. Analítica Mineral nutrition, soil factors and growth rates of Gmelina arborea plantations in the humid lowlands of northern Costa Rica

by Stuhrmann, M; Bergmann, C; Zech, W.

Source: Forest Ecology and Management (Países Bajos) Publisher: Dic 1994Availability: No copies available Actions: Add to cart
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11. Organic matter in termite mounds of the Brazilian CerradosSustainable land management of the oxisols of the Latin American savannas: dynamics of soil organic matter and indicators of soil quality

by Neufeldt, H; Zech, W; Amelung, W; Thomas, R; Ayarza, M.A. eds. -- CIAT, Cali (Colombia)

Publisher: Cali (Colombia) 1999Availability: No copies available Actions: Add to cart
12. Oxisol development along a compound catena of the Araguari River, Central BrazilSustainable land management of the oxisols of the Latin American savannas: dynamics of soil organic matter and indicators of soil quality

by Zech, W; Neufeldt, H; Schneider, M. de O; Thomas, R; Ayarza, M.A. eds. -- CIAT, Cali (Colombia)

Publisher: Cali (Colombia) 1999Availability: No copies available Actions: Add to cart
13. Pesticides in soil, sediment, and water samples from a small microbasin in the Brazilian CerradosSustainable land management of the oxisols of the Latin American savannas: dynamics of soil organic matter and indicators of soil quality

by Zech, W; Laabs, V; Amelung, W; Thomas, R; Ayarza, M.A. eds. -- CIAT, Cali (Colombia)

Publisher: Cali (Colombia) 1999Availability: No copies available Actions: Add to cart
14. Phosphorus fractions under different land-use systems in oxisols of the Brazilian CerradosSustainable land management of the oxisols of the Latin American savannas: dynamics of soil organic matter and indicators of soil quality

by Ayarza, M.A; Zech, W; Neufeldt, H; Silva, J.E. da; Thomas, R; Ayarza, M.A. eds. -- CIAT, Cali (Colombia)

Publisher: Cali (Colombia) 1999Availability: No copies available Actions: Add to cart
15. Phosphorus pools in bulk soil and aggregates of differently textured oxisols under different land-use systems in the Brazilian CerradosSustainable land management of the oxisols of the Latin American savannas: dynamics of soil organic matter and indicators of soil quality

by Neufeldt, H; Ayarza, M.A; Zech, W; Lilienfein, J; Wilcke, W; Thomas, R; Ayarza, M.A. eds. -- CIAT, Cali (Colombia)

Publisher: Cali (Colombia) 1999Availability: No copies available Actions: Add to cart
16. Analítica Relationship between growth, mineral nutrition and site factors of teak (Tectona grandis) plantations in the rainforest zone of Liberia

by ZECH, W; DRECHSEL, P.

Source: Forest Ecology and Management (Países Bajos) Publisher: 1991Availability: Copies available for loan: BCO (1). Actions: Add to cart
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17. Analítica Root activity patterns in an Amazonian agroforest with fruit trees determined by 32P, 33P and 15N applications

by Lehmann, J; Muraoka, T; Zech, W.

Source: Agroforestry Systems (Países Bajos) Publisher: (2001)Online Access: En Availability: No copies available Actions: Add to cart
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18. Short-term variation in aggregation and particulate organic matter under crops and pasturesSustainable land management of the oxisols of the Latin American savannas: dynamics of soil organic matter and indicators of soil quality

by Ayarza, M.A; Silva, J.E. da; Zech, W; Freibauer, A; Westerhof, R; Thomas, R; Ayarza, M.A. eds. -- CIAT, Cali (Colombia)

Publisher: Cali (Colombia) 1999Availability: No copies available Actions: Add to cart
19. Soil organic carbon, carbohydrates, amino sugars, and potentially mineralizable nitrogen under different land-use systems in oxisols of the Brazilian CerradosSustainable land management of the oxisols of the Latin American savannas: dynamics of soil organic matter and indicators of soil quality

by Westerhof, R; Ayarza, M.G; Silva, J.E. da; Zech, W; Fuhrmann, S; Neufeldt, H; Thomas, R; Ayarza, M.A. eds. -- CIAT, Cali (Colombia)

Publisher: Cali (Colombia) 1999Availability: No copies available Actions: Add to cart
20. Soil organic matter in oxisols of the Brazilian CerradosSustainable land management of the oxisols of the Latin American savannas: dynamics of soil organic matter and indicators of soil quality

by Ayarza, M.A; Zech, W; Neufeldt, H; Resck, D.V.S; Thomas, R; Ayarza, M.A. eds. -- CIAT, Cali (Colombia)

Publisher: Cali (Colombia) 1999Availability: No copies available Actions: Add to cart