Data/hora: 12/06/2024 11:00:10

Biblioteca(s): | Embrapa Amazônia Ocidental; Embrapa Cerrados; Embrapa Instrumentação; Embrapa Rondônia; Embrapa Semiárido.
Data corrente: | 04/10/1997
Data da última atualização: | 09/01/2007
Autoria: | ANDERSON, J. M.; INGRAM, J. S. I. (ed.).
Título: | Tropical soil biology and fertility: a handbook of methods.
Edição: | 2.ed.
Ano de publicação: | 1993
Fonte/Imprenta: | Wallingford: CAB, 1993.
Páginas: | 221p.
ISBN: | 0851988210
Idioma: | Inglês
Conteúdo: | The tropical soil biology and fertility programme, TSBF. The TSBF rationale, philosophy and background. TSBF research concepts. TSBF example "synchrony" experiment. Site characterisation. Site description. Climate. Soil characteristics. Field procedures. Above-ground vegetation. Above-ground inputs. Roots. Litter decomposition. Soil. Sampling for laboratory analysis and sample preparation. Soil and plant sampling for laboratory analysis. Soil, plant litter material preparation. Laboratory practice and quality control. Laboratory lay-out. Safety. Services. Glass and plasticware washing. Contamination. Levels of accuracy. Sample batches. Data recording. General points. Quality control and standardisation procedures. Chemical analyses. Water content determination for data correction. pH and electroconductivity screening. Saturated paste extract conductivity. Exchangeable cations. Soil organic matter and organic carbon. Nitrogen. Nitrogen mineralisation. Denitrification. Phosphorus. Polyphenolics. Lignin and cellulose. Soil physical analysis. Mechanical analysis (texture). Bulk density. Field capacity. Lower limit of plant available water. Plant available  water capacity (pawc). Infiltration. Porosity. Example of rapid rural appraisal (rra) interview.  Preparatory work. Fieldwork. Completing the rra. The rhizosphere. The rhizosphere environment. The microbial populations on roots. Mycorrhizas. The vesicular-arbuscular mycorrhizal symbiosis. The ectomycorrhizal symbiosis. Roots: length, biomass, production and mortality. Quantification of root biomass and length. Estimation of total root production. Estimate of total carbon input to the soil. Soil solution sampling and lysimetry. Isolated soil masses. Tension/vacuum/suction samplers. Tensionless collectors. Nitrogen availability. Mineralisation. Denitrification. Techniques for quantifying nitrogen fixation. Nitrogen difference. 15N-isotopic techniques. Acetylene reduction assay (ara). Ureide method. Most probable number counts of rhizobia in soils. Background. Experimentation. Assigning tabular populations estimates to results. The study of phosphorus cycles in ecosystems. Soil tests for inorganic P availability. Phosphorus "fixation". Organic phosphorus transformations. Sequential extractions. Spatial variability. Current approaches and directions. Isotope studies in tropical soil biology. Double (14C, 15N) or triple labelled (14C, 15N, 32P) residues. Labelling the plant material. Decomposition experiments. 13C methodology in estimating turnover rates of soil organic matter fractions. 14C methods to quantify root production and turnover. Using growth analysis to estimate plant nutrient uptake. The classical approach. Application to nutrient uptake. Use of the century plant-soil environmental simulation model. Computer simulation of decomposition and soil organic matter transformations. Model structure and description. Hardware requirements and installation. Running century. Principal model routines. Century outputs. Quantification of near-surface microclimate. Microclimatic factors. Processes affecting microclimate. Linked transport models. Automatic recording of microclimatic factors. Suggested equipment and reagent lists for routine TSBF analyses. Equipment and non-reagent consumables. Suggested equipment suppliers. Reagents. Suggested reagent supplier. TSBF data sharing policy.
Palavras-Chave: | Biology; Biology Fertility; Fertility; Handbook; Laboratory diagnosis; Manual; Methods; Modelo; Regiao tropical; Root; Simulation; Soil physicochemical properties; Soils; Sustainability; Sustentabilidade; Tropical soil.
Thesagro: | Água; Análise de Laboratório; Biologia; Biologia do Solo; Fertilidade; Fertilidade do Solo; Física do Solo; Fósforo; Matéria Orgânica; Método; Micorriza; Nitrogênio; Química do Solo; Raiz; Simulação; Solo; Solo Tropical.
Thesaurus Nal: | ecology; models; mycorrhizae; nitrogen; organic matter; phosphorus; soil biology; soil chemistry; soil fertility; tropical soils; water.
Categoria do assunto: | --
Registro original: | Embrapa Cerrados (CPAC)

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