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	1.	No cover image available No cover image available A cautionary note about the use of the CENTURY soil-organic-matter model for ecosystems on highly-weathered tropical low-P soils by Gijsman, Arjan J Oberson, Astrid Tiessen, H Friesen, Dennis Keith Material type: Text; Format: print ; Literary form: Not fiction Language: English Publication details: Cali, CO Centro Internacional de Agricultura Tropical (CIAT) 1994 Online access: Click here to access online Availability: Items available for loan: CIAT Library (1)Call number: 64943. Items available for reference: CIAT Library: Not For Loan (1)Call number: 64943. Add to cart (remove)
	2.	No cover image available No cover image available Disponibilidad de fósforo en las heces de una especie anécica de la lombriz de tierra de las sabanas de suelo oxisol en Colombia by Jiménez Jaén, Juan José Cepeda, A Friesen, Dennis Keith Decaëns, Thibaud Oberson, Astrid Material type: Article; Format: print ; Literary form: Not fiction Language: English In: In: Jiménez Jaén, Juan José; Thomas, Richard J. (eds.). El arado natural: Las comunidades de macroinvertebrados del suelo en las sabanas neotropicales de Colombia Online access: Click here to access online Availability: Items available for loan: CIAT Library (2)Call number: QH 84 .8 A7, ... Add to cart (remove)
	3.	No cover image available No cover image available The effect of C:P ratio of plant residues added to soils of contrasting phosphate sorption capacities on P uptake by Panicum maximum (Jacq.) by Umrit, Gunshiam Friesen, Dennis Keith Material type: Article; Format: print Language: English In: Plant and Soil (Netherlands) Online access: Click here to access online Availability: Items available for reference: CIAT Library: Not For Loan (2). Add to cart (remove)
	4.	No cover image available No cover image available Limited applicability of the CENTURY model to highly weathered tropical soils by Gijsman, Arjan J Oberson, Astrid Tiessen, H Friesen, Dennis Keith Material type: Article; Format: print Language: English In: Agronomy Journal (USA) Availability: Items available for reference: CIAT Library: Not For Loan (1)Call number: 63787. Add to cart (remove)
	5.	No cover image available No cover image available Nutrient cycling by Friesen, Dennis Keith Material type: Article; Format: print ; Literary form: Not fiction Language: English In: In: Centro Internacional de Agricultura Tropical. Savannas program: Biennial report 1992-1993 Online access: Click here to access online Availability: Items available for loan: CIAT Library (2)Call number: QK 938 .P7 S3, ... Add to cart (remove)
	6.	No cover image available No cover image available Nutrient cycling through the microbial biomass by Gijsman, Arjan J Oberson, Astrid Friesen, Dennis Keith Sanz Scovino, José Ignacio Thomas, Richard J Material type: Article; Format: print ; Literary form: Not fiction Language: English In: In: Centro Internacional de Agricultura Tropical. Tropical Lowlands Program. Annual Report Availability: Items available for loan: CIAT Library (1). Items available for reference: CIAT Library: Not For Loan (1). Add to cart (remove)
	7.	No cover image available No cover image available Phosphorus availability in casts of an anecic savanna earthworms in Colombian oxisol by Jiménez Jaén, Juan José Cepeda, A Friesen, Dennis Keith Decaëns, Thibaud Oberson, Astrid Material type: Article; Format: print ; Literary form: Not fiction Language: English In: In: Jiménez Jaén, Juan José; Thomas, Richard J. (eds.). Nature's plow: Soil macroinvertebrate communities in the neotropical savannas of Colombia Online access: Click here to access online Availability: Items available for loan: CIAT Library (1)Call number: QH 84 .8 N3. Items available for reference: CIAT Library: Not For Loan (1)Call number: QH 84 .8 N3. Add to cart (remove)
	8.	No cover image available No cover image available Phosphorus status and cycling in native savanna and improved pastures on an acid low-Colombian oxisol by Oberson, Astrid Friesen, Dennis Keith Morel, C Stahel, W Material type: Article; Format: print Language: English In: Nutrient Cycling in Agroecosystems (Netherlands) Online access: Click here to access online Availability: Items available for reference: CIAT Library: Not For Loan (1)Call number: 62013. CIAT Library: Short Loan (1)Call number: 62013. Add to cart (remove)
	9.	No cover image available No cover image available Phosphorus transformations in improved pastures by Oberson, Astrid Friesen, Dennis Keith Tiessen, H Moir, J.O Borrero, G Material type: Article; Format: print ; Literary form: Not fiction Language: English In: In: Centro Internacional de Agricultura Tropical. Tropical Lowlands Program. Annual Report Availability: Items available for loan: CIAT Library (1). Items available for reference: CIAT Library: Not For Loan (1). Add to cart (remove)

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