Author: Publisher: IICA Biblioteca Venezuela
ISBN:
Category :
Languages : en
Pages : 208
Book Description
Annual Report '78
Author: Publisher: IICA Biblioteca Venezuela
ISBN:
Category :
Languages : en
Pages : 208
Book Description
Genetic Resources of Cacao
Author: Centro Agronómico Tropical de Investigación y EnseñanzaPublisher: Bib. Orton IICA / CATIE
ISBN:
Category : Cacao
Languages : en
Pages : 200
Book Description
Descriptor catalog of CATIE's collection of Theobroma cacao & related species.
Spatial and Temporal Fluctuations of Literfall in the Agroforestry Associations
Author: Publisher: Bib. Orton IICA / CATIE
ISBN:
Category :
Languages : en
Pages : 74
Book Description
Carbon, Nitrogen and Phosphorus Cycling in Forest Soils
Author: Robert G. QuallsPublisher: MDPI
ISBN: 3038976822
Category : Technology & Engineering
Languages : en
Pages : 238
Book Description
The majority of carbon stored in the soils of the world is stored in forests. The refractory nature of some portions of forest soil organic matter also provides the slow, gradual release of organic nitrogen and phosphorus to sustain long term forest productivity. Contemporary and future disturbances, such as climatic warming, deforestation, short rotation sylviculture, the invasion of exotic species, and fire, all place strains on the integrity of this homeostatic system of C, N, and P cycling. On the other hand, the CO2 fertilization effect may partially offset losses of soil organic matter, but many have questioned the ability of N and P stocks to sustain the CO2 fertilization effect. Despite many advances in the understanding of C, N, and P cycling in forest soils, many questions remain. For example, no complete inventory of the myriad structural formulae of soil organic N and P has ever been made. The factors that cause the resistance of soil organic matter to mineralization are still hotly debated. Is it possible to “engineer” forest soil organic matter so that it sequesters even more C? The role of microbial species diversity in forest C, N, and P cycling is poorly understood. The difficulty in measuring the contribution of roots to soil organic C, N, and P makes its contribution uncertain. Finally, global differences in climate, soils, and species make the extrapolation of any one important study difficult to extrapolate to forest soils worldwide.
Transactions 15th World Congress of Soil Science
Author: World Congress of Soil SciencePublisher:
ISBN: 9789686201284
Category : Soils
Languages : en
Pages :
Book Description
Author index in v. 9.
Annual Report
Author: Inter-American Institute of Agricultural SciencesPublisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 652
Book Description
Turrialba
Author: Transactions
Author: Agrindex
Author: Las Sabanas americanas
Author: Guillermo SarmientoPublisher:
ISBN:
Category : Science
Languages : es
Pages : 342
Book Description