Download or read book Role of Pythium Aphanidermatum Edson Fitzp in Tomato Sudden Death in the Tropics with Emphasis on Integrated Disease Management written by Thi-Thu-Le Huong and published by Cuvillier Verlag. This book was released on 2003 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Role of Pythium aphanidermatum Edson Fitzp in tomato sudden death in the tropics with emphasis on integrated disease management written by Huong Thi Thu Le and published by . This book was released on 2003 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Role of Biological Nitrogen Fixation in the Cacao Agroforestry System in Central Sulawesi Indonesia written by Ashabul Anhar and published by Cuvillier Verlag. This book was released on 2005 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water and Nutrient Dynamics of a Humid Tropical Agricultural Watershed in Eastern Amazonia written by Bart Wickel and published by Cuvillier Verlag. This book was released on 2004 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microsatellite Development and Application in Pigeonpea Cajanus Cajan L Millspaugh written by Damaris Achieng Odeny and published by Cuvillier Verlag. This book was released on 2006 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Runoff and Infiltration Processes in the Volta Basin West Africa written by Ayodele Ebenezer Ajayi and published by Cuvillier Verlag. This book was released on 2004 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The study presents the analyses of field observations and simulation experiments with an event-based, two-dimensional hydrodynamic model. The model summarized the interactions between temporally dynamic rainfall, infiltration process and surface runoff in a catchment with varied soil physio-hydraulic properties, surface-roughtness, slope-lengths and vegetation structure. Both observation and simulation results indicate that the observation scale affects runoff coefficient and runoff discharge per unit area. The effect of scale is a result of spatial variability in infiltration opportunities, which vary with the slop length and distribution of saturated conductivity, leading to different trasmission losses potential during runoff routing downslope. The magnitude of the difference is influenced by surface and vegetated microtopography, which determine the flow rate"--Back cover.
Download or read book Soil Characterization and Modeling of Spatial Distribution of Saturated Hydraulic Conductivity at Two Sites in the Volta Basin of Ghana written by Wilson Agyei Agyare and published by Cuvillier Verlag. This book was released on 2004 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the key parameters in hydrological and climate change modeling is a good estimation of the soil hydrauic properties in the region of interest. This study investigates the spatial distribution and variability of soil physical properties, with emphasis on saturated hydraulic conductivity at two pilot sites in the Volta Basin of Ghana. It focuses on the potential of pedotransfer functions (PTFs) and artificial neural network (ANN) approach for estimating saturated hydraulic conductivity. Saturated hydraulic conductivity was observed to be highly spatially variable; however, it can be estimated using selected PTFs and ANN for soils in the Volta Basin based on soil parameters that can readily be obtained from detailed soil maps--From cover.
Download or read book Effects of Pesticides on Soil Fauna written by Marcos Garcia and published by Cuvillier Verlag. This book was released on 2004 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: Duas importantes questões foram levantadas neste estudo: (1) O efeito e destino dos pesticidas em solos de regiões temperadas podem ser diferentes em solos tropicais? (2) Os dados produzidos nas regiões temperadas podem ser usados para a avaliação de risco ambiental nos trópicos?
Download or read book Reservoir Siltation in Ethiopia written by Lulseged Tamene Desta and published by Cuvillier Verlag. This book was released on 2005 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Conversion Soil Degradation Farmers Perception Nexus written by Mekuria Argaw Denboba and published by Cuvillier Verlag. This book was released on 2005 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modelling Riverflow in the Volta Basin of West Africa written by Barnabas Akurigo Amisigo and published by Cuvillier Verlag. This book was released on 2005 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Upscaling of Land Surface Parameters Through Inverse SVAT Modeling written by Joseph D. Intsiful and published by Cuvillier Verlag. This book was released on 2004 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The potential of oil palm and forest plantations for carbon sequestration on degraded land in Indonesia written by Syahrinudin and published by Cuvillier Verlag. This book was released on 2005 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant biomass represents a sink for atmospheric carbon dioxide, which is one of the most important greenhouse gases and which is assumed to contribute more than half of the global warming. Establishing tree plantations or perennial crops on degraded land is an effective way to reduce atmospheric carbon by building up terrestrial carbon stocks, not only in the living biomass, but also in the soil. By converting Imperata cylindrica grassland into tree plantations (Acacia mangium or oil palm), aboveground biomass carbon can be increased about 20-fold and below ground biomass carbon up to 8-fold, while soil carbon can almost be doubled.
Download or read book The Effect of Azolla on Nitrogen Use Efficiency in Rice wheat Rotations of Nepal written by Junoo Kamal Tuladhar and published by Cuvillier Verlag. This book was released on 2004 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: The low productivity of the rice-wheat cropping system in Nepal is associated with a low efficiency of applied mineral N in rice. The aquatic fern Azolla was used to reduce N losses via ammonia volatilization from the flooded lowland rice in farmers' field conditions in Nepal. The Azolla cover changed the floodwater chemistry, thus reducing ammonia volatilization losses. The use of Azolla in combination with Urea increased rice yields by 15% and reduced urea-N losses from 17-38% to 2-8%. A combined use of Azolla and urea is a viable option to enhance the productivity of rice-wheat systems in Nepal.
Download or read book Multiscale Analysis of Landscape Data Sets from Northern Ghana written by Nathaniel Kwamina Howard and published by Cuvillier Verlag. This book was released on 2005 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Management of Bombus Atratus Bumblebees to Pollinate Lulo Solanum Quitoense L a Native Fruit from the Andes of Colombia written by Maria Teresa Almanza Fandiño and published by Cuvillier Verlag. This book was released on 2007 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solanum quitoense (Lulo) from the northern Andes is a fruit with an attractive taste. It has a high export potential but its production is hampered by insufficient pollination. Studies on the reproductive system of Lulo revealed that, due to their poricidal anthers, the flowers need pollinators for self- and cross-pollination. Pollination by native bumblebees significantly increases fruit set and quality. Experiments show that colonies of Bombus atratus can be reared in captivity and used in Lulo fields for providing increased pollination services. Modeling based on data on colony development reveal larva/workers ratio and the supply of pollen as main parameters for improving the rearing method.
Download or read book Genetic Diversity of Wild Coffea Arabica Populations in Ethiopia as a Contribution to Conservation and Use Planning written by Kassahun Tesfaye Geletu and published by Cuvillier Verlag. This book was released on 2006 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
