····· lezzter Preis 23.00€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Antibiotika, vor allem Tetrazykline und Sulfonamide, werden in nennenswertem Umfang für veterinärmedizinische Zwecke in der Nutztierhaltung eingesetzt. So betrug 1999 der Antibiotika-Verbrauch in der EU sowie in der Schweiz 13.200 t. Nach Verabreichung werden Arzneimittel in nach Wirkstoff und Tierart unterschiedlicher Menge und Form durch den tierischen Organismus wieder ausgeschieden. Daher ist in dem Pfad Exkretion-Wirtschaftsdünger-Boden eine bedeutende Eintragsquelle potenziell umweltrelevanter Stoffe zu sehen. Während alle neu zugelassenen Wirkstoffe seit 1998 einer Umweltverträglichkeitsprüfung unterliegen (EMEA/CVMP-055/96), gilt dies nicht für sogenannte Altpräparate wie Tetrazykline und Sulfonamide. Daher besteht ein erheblicher Mangel an Informationen über das Verhalten von diesen Altpräparaten in der Umwelt. Ziel dieser Arbeit war es daher, in drei Themenschwerpunkten die Wirkstoffgruppen Tetrazykline und Sulfonamide hinsichtlich ihres Umweltverhaltens in Masthähnchenfestmist (Persistenz von Tetrazyklin), Schweinegülle (Erhebung zu tatsächlich vorliegenden Wirkstoffgehalten in der Praxis) und Boden (Mobilität von Tetrazyklin und Sulfadiazin in verschiedenen Böden) zu untersuchen und damit einen Beitrag zur Risikobewertung dieser Antibiotika zu leisten. Die Quantifizierung der Substanzen erfolgte über HPLC-gestützte Nachweisverfahren. ····· 10361158083
····· lezzter Preis 25.65€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This study concerns evapotranspiration, which accounts for 90% of the water balance in West Africa. At field level, crop and bare-soil albedo measurements were used to build simple models based on phenology, zenith angle and soil surface conditions. Interactions between tree water flux and environmental variables were examined. The complementarity Advection-Aridity (AA) relationship model adequately simulates the spatio-temporal distribution of regional ET rates. The monsoon clouds, harmattan and seasonal changes in surface albedo influence evapotranspiration processes in the Volta Basin. The good performance of the improved AA model indicates its utility for providing independent estimates of ET. These results are valuable input to eco hydrology and climate models. ····· 10361158023
für 64.71€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Forest fires have received increased public attention globally during last few years due to their significant short and long-term threat to forests ecosystem and to public safety and property. The Himalayan region of India are subjected to repeated annual fires, and because of inaccessibility only conventional firefighting techniques are used, which are found ineffective. Fire risk assessment requires the use of Remote Sensing (RS) and Geographical Information System (GIS) for processing and displaying of spatial information in a timely and cost effective manner. An attempt has been made through this study, which has broadly aimed at forest fire risk assessment and modeling, for planning and management in Shimla district of Himachal Pradesh (India) to take pre-emptive measures in fire control management. The study may be targeted to forest managers, landscape planners, academicians of following fields i.e. Disaster Management, Natural Resource Management, Earth Science, Ecology, forestry etc. It may be the pioneer publication to access in comprehensive way to forest fire management with geospatial modelling in Indian Himalayan forests. ····· 10361147419
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Climate change as a subject of debate has moved from the realms of if it is a reality to what rate it is occurring. Anthropogenic footprints on the phenomenon have been a subject of scientific studies for decades with agriculture shown to be one of the leading contributors. Sub-Saharan Africa faces a precarious food situation and addressing it has naturally become a top priority of the region. This only means there should be an intensification in agricultural activities which has the potential to accelerate climate change considering the impacts of Green Revolution in Asia and Latin America. However, modern scientific studies and observation of improvement in advanced agricultural systems have proven some practices as with the potential to increase agricultural productivity while mitigating green house gas (GHG) emissions. Proper adoption of some of the practices as identified in the content to sub-Sahara African setting has the potential to reduce food insecurity in region while reducing the fear of exacerbating the impacts on climate. ····· 10361147409
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Murrels belonging to the family channidae, are commonly known as snake-heads, Four to five species of Channa are available in Odisha State and amongst them Channa gachua being this smallest in size. Hamilton designated the species as Channa gachua which was formerly known as Channa orientalis. The Fish is consumed by lower class and lower middle class families in India. hence their population should be increased. For this, extensive study of their biology and chemical biology was necessary. In this work, Author tried to study food, feeding habits, growth in relation to age, age at first maturity, length and weight relationship, fecundity, sex ratio etc to give the knowledge of their population and status. For the nutritive component, like carbohydrate, protein, fat and ash percentage of muscle liver and gonad was studied to justify them to be consumed as a nutritious food so that people will culture them and will cater their need. ····· 10361147390
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Irrigation with sewage water not only meets the water requirement but also fulfill partial nutrient need of the crop. Beside this, under arid and semi arid conditions where irrigation is a prerequisite for successful agriculture, sewage water as a source of irrigation is equally important as the need for its disposal. But the hydraulic and nutrient loadings of raw sewage water are several times above the assimilative capacity of soil-plant system. Long term use of raw sewage waters for irrigating vegetable crops may result in metal accumulation in soils to such an extent that may affect plant growth and may cause clinical problems in animals and human beings too. The manuscript provides introduction to sewage water with respect to the physical and chemical characteristics, its effect on physical and chemical properties of the soils as well as on metallic cations build-up in soil and vegetables grown in these sewage farms. If this work is able to rouse further interest in environmentalist, scientists and students in universities working in various fields associated with pollution, we would consider one of the principal objectives of publishing it fulfilled. ····· 10361147378
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Potting soil mixes are the most important factors for quality production of flowers in floriculture.It becomes farmer s first preference these days because flowering crops provide higher returns than traditional crops and its marketing offers both small and large scale growers a way to increase the level of sustainability on their farms. Organic materials from agriculture, forestry, green areas and livestock farming as well as residues from municipal and industrial waste are strongly recommended for use as renewable resources in pot production that palliate their harmful and negative impact on local and global environmental degradation. In Pakistan locally available material like sawdust, coco-nut coir dust, Sewage Sludge, spent mushroom compost, rice hull and cotton gin trash are yet not fully evaluated as potting media in different compositions. Therefore different types of media like silt, coconut coir, dust, Sewage Sludge, spent mushroom compost, rice hull alone and in different compositions were evaluated for the production of dahlia. ····· 10361147376
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Habitat fragmentation is a problem faced by many species all over the world due to expansion in urban settlements, forest destruction and infrastructure developmental activities. The destruction of habitat and fragmentation hamper the migration of species which may lead to its local extinction. Land use change which is driven by human population is the main reason for habitat destruction and fragmentation. Remote sensing and GIS Technology are very important and useful to assess the land-use changes and monitoring these changes. Protected areas that are confined only to the patch conservation should be joined through the biological corridor and forest restoration can be one of the alternatives in conserving those biological corridors for the easy accessibility of wildlife movement. ····· 10361147367
für 50.31€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The present book contains the detailed investigation of the causal agent of anthracnose (Colletotrichum gloeosporioides Penz. and Sacc) disease of Indian bean (Lablab purpureus L.) and management studies. Management aspect covers Integrated Management studies including Biological control,Chemical control, Use of botanical extract as well as screening of resistant variety against the anthracnose of Indian bean. ····· 10361147340
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The manuscript carries information regarding Odonata fauna of northern areas of Pakistan (now called Gilgit- Baltistan). Thirty one species were collected under two independent studies carried out during the years 1994 1997 & 2006 2008. Results of these two studies are merged together to provide an updated record for northern Odonata of the country. Carrying a gap of almost a decade, compilation of both studies also highlights population fluctuation in species with respect to time. Many species that were collected in huge numbers during first study were appeared to decrease in next one. Possible reasons for this decrease are also discussed. Additionally citations for all the studies carried out up till now reporting Odonata of northern areas of Pakistan are also provided to facilitate readers of this monograph. ····· 10361147316
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Root-knot nematode, Meloidogyne incognita, causes significant economic losses in tomato production in Etiopia. Unless this pest is appropriately managed its effect will remain negatively in the production and productivity of tomato and other solanacea family. Rapeseed cake and BioNem WP were evaluated for their effect against root-knot nematode, M. incognit. they were found environmentally friendly, economically afordable and effective in control of the nematode. ····· 10361147302
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book provides knowledge of rabbit rearing, production, economics, statistical analysis of associations of dependent variable i.e. economics of production of rabbit meat with personal and socio economic characters of the rabbit farmers. The constraints in rabbit farming and suggestions of rabbit farmers to overcome these constraints are also included in this book. The Author has written this book in simple language for rural farmers and for those who intends to start the business of rabbit farming. The Author is a true researcher in Rabbit Farming. and he has also experience of working in the field of agriculture and horticulture for last 20 years. The co author has research experience of 30 years. ····· 10361147278
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The Achievement of food security is one of the main challenges of many countries in Sub-Saharan Africa. A steadfast increase in rice production can substantially contribute in ameliorating food security. Actually, rice is a staple food for more than half of the world s population and its consumption is increasing rapidly in sub-Saharan Africa. In Cameroon, per capita consumption of rice has increased from 2.3 kg in 1961 to 22.4 kg in 2005. About 87 % of the rice consumed in Cameroon is imported, mean while the natural conditions in the country are favourable for the production of rice to satisfy local demand and for export. The dominant rice cropping systems in Cameroon are irrigated and lowland rainfed agriculture. The main question addressed in this book is What are the potentialities of Southern Cameroon for upland rice production In this study, land evaluation was used to assess the suitability of Southern Cameroon for rice cultivation. ····· 10361147266
für 49.41€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This study give a full explanation about the sensory and chemical characteristics of olive oil. Olive oil designation according to chemical and sensory attributes, Influence of olive varieties and olive harvesting stages on the acidity, peroxide value, OD232, OD270, total phenols, fatty acid composition, un saponifiable constituents are explained in this study, Furthermore, this study describe the correlation between sensory and chemical properties of olive oil obtained from different types of olive varieties. additionally, this study focus on the effect of effect of harvesting stages and varieties of olive oil on the classification of virgin olive oil according to standards of international olive council. This study describe the effect of olives obtaining conditions on the positive and negative sensory attributes of virgin olive oil. ····· 10361147265
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In the first chapter has a general look at the background of this proposal which entails the meaning, causes and effects of HIV/AIDS. The problem is the fact that there is not enough that is known about the effects of HIV/AIDS and the objective stated being to find the effects that HIV has had socially and on the agricultural sector of those living in the rural areas. The data is of both primary and secondary nature where primary data is got from representatives from the AIDS information centre and secondary data from the internet and books. STATA will be used to predict the values of production loss in the agricultural analysis. After doing an analysis we find that the social effects have declined over the years due to the education of the locals and sensitisation on the HIV/AIDS and due to the availability of medication to the people in rural areas there is an increase in the agricultural activities therefore improving the livelihood of these people. ····· 10361147255
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Recognizing the increasing importance of fish in coming days, a study was undertaken to determine the fish water productivity, to identify the probable causes of productivity variation along the sub-basin and to determine possible intervention to optimize water productivity of fisheries. The study recommended some important physical, technological and institutional interventions to overcome different constraints observed in Bagerhaat, Narail and Chuadanga. The recommended measures ranges from making quality fish fries available to the culture fisheries to improvement and management of fish habitat to establishing linkage between the market and fishermen that if followed is expected to result a sustainable outcome in fisheries sector in that part of the country. ····· 10361147252
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Black pepper (Piper nigrum L.), an economically important species of the family Piperaceae, is a perennial glabrous woody climber that yields the black pepper of commerce, which is profusely used as a culinary spice and condiment all over the world. Though it had been more than two decades, since it was introduced to Ethiopia, no work had so far been conducted to optimize the different factors involved in its vegetative propagation. Hence in this study, three levels of cutting position, two levels of physiological state of the stock plant at the time of collecting cuttings, and seven types of growth media were evaluated. From this investigation, it can be deduced that better vegetative propagation of black pepper from leafless hardwood cuttings can be attained when basal cuttings were taken from actively growing stock plant and grown in 1:1 mixture of Fine sand:Forest soil and 1:1:1 mixture of Fine sand:Forest soil: Partially decomposed coffee husk. ····· 10361147225
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Africa missed out of the first Green revolution. With the re-introduction of the revolution, is there hope for the continent This is a micro-economic study that gives insights into the determinants of modern farm inputs and the effects on the efficiency and poverty levels of farm households in Ghana. It covers a wide range of topics, including agricultural household models, adoption, efficiency, poverty as well as discrete choice models and selectivity bias. ····· 10361147218
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray These experiments were carried out in 1983 and 1984 seasons in the glasshouse of Viticulture Institute, Hohenheim University, West Germany. The main objectives were to study the effect of potassium fertilization and soil water capacity on vegetative growth, dry matter production and some physiological processes in grape seedlings of the cultivar Müller-Thurgau (Vitis vinifera, L.). Cuttings of dormant one-year-old canes were planted in 3 liter draining pots filled with a mixture of sand and peat (7:1 v/v, respectively). The plants grown from these cuttings treated with potassium levels, 0.3, 0.8, 1.3 and 1.8 g K2O/plant. Grape plants of each potassium treatment were divided into two equal groups to receive two levels of soil water capacity (80 and 40%). ····· 10361147194· 1 · ::::: · 2 ·· 3 ·· 4 ·· 5 ·· 6 ·· 7 ·· 8 · ::::: · 90 ·
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