agrobios (Mehr als 1.000 Ergebnisse)

Zustand: New. pp. 128.

Zustand: New. pp. 288.

Zustand: New. pp. xviii + 265 Illus.

Zustand: New. pp. x + 150 Figures.

Zustand: New. pp. [x] + 114.

Zustand: New. pp. 156 Illus., Maps.

Hardcover. Zustand: New.

Hardcover. Zustand: New. 2nd Edition. Contents: 1. Wildlife : an introduction. 2. Wildlife ecosystems and natural communities. 3. Population ecology and management. 4. Important Indian fauna. 5. Animal behavior and wildlife management. 6. Food and cover. 7. Wildlife diseases. 8. Predators and predation. 9. Wildlife conservation. 10. Laws for wildlife conservation and management in India. 11. Glossary. 12. Selected bibliography. 13. Appendix. Subject index. From the preface: "Wildlife is a term that does not enjoy a precise or a universally accepted definition. The term implies all things that are living outside direct human control and therefore includes those plants and animals that are not cultivated or domesticated. In its fullest meaning, wildlife encompasses insects and fungi, frogs and wild flowers, as well as doves, deer, and trees. Nonetheless, organizations concerned with wildlife generally favor the so-called higher forms of animal life. Birds and mammals symbolize wildlife to most people and, of these animals, game species receive a disproportionately large measure of attention. However, only a small fraction of birds and mammals are regarded as game. Wildlife management clearly implies the influence and application of human manipulation. In other words, to achieve specified objectives. Pinchot coined the term conservation in 1907, apparently deriving his term from conservator, a title of an office in the British Government of colonial India. The term conservation applied to natural resources. In general, wildlife management is the application of ecological knowledge to populations of vertebrate animals and their plant and animal associates in a manner that strikes a balance between the needs of those populations and the needs of people.".

Hardcover. Zustand: As New. Contents Preface 1 Introduction 2 Why bonsai 3 Aesthetic aspects 4 Details of bonsai parts 5 Indoor bonsai 6 Ideal environments for bonsai 7 Selection of species 8 Planting materials 9 Bonsai nursery 10 Containers for bonsai 11 Potting compost 12 Potting 13 Step-by-step development 14 Root pruning shifting or repotting 15 Fixing large bonsai to a shallow pot 16 Methods of dwarfing 17 Watering weeding and feeding 18 Different styles 19 Training of bonsai 20 Tools implements and accessories 21  Flowering and fruit bearing bonsai 22 Bonsai of attractive foliage 23 Displaying 24 Peat and disease control 25 Conservatory for bonsai Glossary Bonsai nursery Bonsai societies Reading materials Index species and cultivars Index general From the preface The book is designed for those who are eager to have the guidance and instructions for growing their own bonsai Even those who purchase bonsai or semi-bonsai from the bonsai nursery invariably need the guidance for rearing their subjects To make the text attractive and interpretative as many as 150 figures have been included in the text All the line drawings have been drawn by the author himself An acknowledgement expressing gratitude to the persons concerned is included They have assisted in providing photographs and transparencies for illustration 122 pp.

Zustand: New. pp. xiv + 96 Illus.

Hardcover. Zustand: As New. Contents 1. Requirements for plant growth. 2. Nitrogenous fertilizer materials. 3. Phosphatic fertilizer materials. 4. Potash fertilizer materials. 5. Effects of fertilizers on crops and soils. 6. Factory mixed fertilizers. 7. Home mixing of fertilizers. 8. Purchase and use of fertilizers. 9. Liming in relation to fertilizer practice. 10. Organic matter in relation to fertilizer practice and use. Index. From the Preface This little book is an attempt to supply accurate up to date information as to the source and make up of commercial fertilizers. Special stress is laid on the effects of fertilizers on soils and crops in the hope of aiding the user in making a wise choice for his individual soil and cropping conditions. A fertilizer should satisfy the requirements of the particular crop to be grown. Farmers are urged to consider the interrelationship between crops and the effects of the residues from fertilizers used for one crop on those which follow. 172 pp.

Zustand: New. pp. 139 3 Figures, Illus.

Hardbound. Zustand: As New. Reprint. Contents Foreword. Preface. 1. Introduction. 2. Techniques of developing hybrids. 3. Conclusion and future line on work. 3. Bibliography. 4. Glossary. From the foreword The publication of Techniques of Developing Hybrids in Vegetable Crops providing technical guidance and different approaches to develop the hybrids is very timely. In this publication the techniques involved with different breeding systems have been explained in clarity and illustrations for easy adoption at all the levels. The information will be of immense value to the scientists scholars agencies and individuals involved in the development and propagation of hybrids in different vegetable crops. 72 pp.

Hardcover. Zustand: New. 2nd Edition. Contents Preface. 1. Basic introduction to pest management and biological control. 2. Target pest and its biological control. 3. Principles of biological control and botanical pesticide biotic agents and microbial pesticides. 4. Neem as botanical pesticide. 5. Bacteria as biopesticide. 6. Fungi as biopesticides. 7. Viruses as biopesticides. 8. Nematodes as biopesticides. 9. Protozoa as biopesticides. 10. Agricultural antibiotics from microbes. 11. Quality control of biopesticides botanical pesticides and biocontrol agents. 12. Biopesticides research development and progress. 13. Database of biopesticides and biocontrol agents. Glossary. References. Subject Index. Organic farming uses the earth's natural resources for sustainability. It follows the principles of nature which are self sustaining developing systems and promised maintenance of soil fertility and control of pests and disease by enhancing natural processes and cycles in harmony with the natural environment. It avoids use of synthetic pesticides herbicides chemical fertilizers and growth hormones antibiotics or gene manipulation. Based on this concept organic farming is practiced in approximately 130 countries with total area of 35 million hectares around the world. Although India has made wide strides in attaining food security through Green Revolution but it has given rise to second generation problems like soil degradation resurgence of pests and diseases environmental pollution and decline in farm profit. The ill effects of pesticides could be related to cause many human and animal diseases like hepatitis influenza gastrointestinal troubles allergy cardiovascular problem and even cancer. According to WHO 20000 25000 people die every year in the third world countries due to pesticide poisoning. Use of Biopesticides and biocontrol agents can minimize this problem as maximum as possible. The biocontrol agents (natural predators) and bio pesticides of microbial plant origin play greater role in protecting crops against pests and diseases under organic farming regime. More than 400 biocontrol laboratories are now available in India for mass production of biocontrol agents and biopesticides. The present book has been designed to present overall information on biological control and biopesticides. 258 pp.

Hardbound. Zustand: As New. New. Contents Foreword. Preface. 1. Introduction. 2. Techniques of developing hybrids. Conclusion and future line on work. Bibliography. Glossary. India is on the verge of a breakthrough in establishing hybrids on a commercial scale for enhancing the production and productivity of vegetables. Present Government policy to freely import hybrid and boost vegetable production in the country persistent demand of students seed company and farmers keenness to shift to hybrid than traditional seed production and extension workers engaged throughout the country inspire us to bring out this book in most practical style and language. This book gives different approaches to develop the hybrids the techniques involved with different breeding systems have been explained in clarity and illustrations for easy adoption at all levels. The information will be of immense value to the scientist scholars agencies and individuals involved in the development and propagation of hybrids in different vegetable crops. 72 pp.

Zustand: New. pp. 182.

Zustand: New. pp. 340.

Contents Foreword Preface Introduction Techniques Of Developing Hybrids Exploitation of male sterility for hybrid production Pollen sterility Cytoplasmic male sterility Problems in exploiting CMS Genie male sterility GMS Problems in exploiting GMS Cyto-genic male sterility C-GMS Problems in exploiting C-GMS Staminal sterility Functional male sterility Positional sterility Long styly Exploitation of self-incompatibility for hybrid production Single cross Double crosses Triple crosses Advantages of triple cross hybrids Disadvantages of triple cross hybrid Problems in exploiting self incompatibility Exploitation of dicliny for hybrid production Monoecy in hybrid production Dioecy in hybrid production Hand emasculation andor hand pollination Use of gametocides Conclusion And Future Line On Work Bibliography GlossaryIndia is on the verge of a breakthrough in establishing hybrids on a commercial scale for enhancing the production and productivity of vegetables Present Government policy to freely import hybrid and boost vegetable production in the country persistent demand of students seed company and farmers keenness to shift to hybrid than traditional seed production and extension workers engaged throughout the country inspire us to bring out this book in most practical style and language This book gives different approaches to develop the hybrids the techniques involved with different breeding systems have been explained in clarity and illustrations for easy adoption at all levels The information will be of immense value to the scientist scholars agencies and individuals involved in the development and propagation of hybrids in different vegetable crops 72 pp.

Hardcover. Zustand: New. Contents: Introduction. 1. Pot culture vs ground culture. 2. Pots and containers. 3. Rose food. 4. Sufficiency vs deficiency of nutrients. 5. Potting compost. 6. Soil reaction. 7. Planting materials. 8. Propagation in pots. 9. Potting. 10. Watering. 11. Supplementary feeding. 12. Feeding through foliage. 13. Weeding hoeing and mulching. 14. Pruning and after care. 15. Lifting from ground. 16. Unwanted shoots. 17. Heading back. 18. Care out of the season. 19. Rejuvenating. 20. Originating new roses. 21. Classification. 22. Pest and disease control. 23. Growing for exhibition. 24. Exhibiting. 25. Standards in pots. 26. Over-sized and low-growing roses. Appendixes.

Zustand: New. pp. xviii + 248.

Zustand: New. pp. [x] + 179 Figures,

Hardbound. Zustand: As New. Reprint. Contents Introduction. 1. Importance of mushrooms. 2. Brief history of mushroom cultivation. 3. Steps in mushroom growing. I. The mushroom biology 1. Life cycle of mushrooms. 2. Identification of mushrooms. 3. Edible and poisonous mushrooms. 4. Mushroom genetics and breeding. 5. Mushroom growth and environment. II. Spawn and spawning 1. Spawn production. III. White button mushroom (Agaricus Bisporus) 1. Compost preparation. 2. Spawning. 3. Crop management after spawning. 4. Casing. 5. Post composting supplementation. 6. Management after spawn run. IV. Button or field mushroom 1. Production technology. V. Oyster mushroom 1. Materials and substrates. 2. Sterilization/pasteurzation. 3. Inoculation/spawning. 4. Incubation. 5. Fruiting. 6. Mushroom house design for pleurotus production. VI. Straw mushroom 1. Composting the substrate. 2. Substrate preparation and spawning. VII. Shiitake mushroom 1. Cultivation on supplemented sawdust. VIII. White milky mushroom and other species 1. Cultivation. 2. Other species of mushrooms. 3. Silver ear mushroom or white jelly fungus. 4. Truffles. 5. Wood ear mushroom/black mushroom. IX. Major pests diseases and contaminants 1. Prevention and control measures. 2. Common fungal contaminants of substrates. 3. Insect pests. 4. Mite pests. 5. Nematodes. 6. Important diseases of white button mushroom. 7. Abiotic disorders. 8. Important diseases of oyster mushroom. 9. Important diseases of straw mushrooms. X. Preservation and processing 1. Short term storage. 2. Long term storage. XI. Common problems 1. Media preparation or culture. 2. Preparation of the mother spawn. 3. Preparation of the mother spawn. 4. Preparation of planting spawn. 5. Outdoor bed technology for Volvariella Sp. 6. Sawdust technology. XII. Ancillary information 1. Important literature of mushrooms. 2. Training facilities in India. 3. Consultancy services. 4. Sources of mushroom cultures. 5. Sources of mushroom spawn. 6. Sources of machinery/equipments. 7. Producers of button and oyster mushrooms. 8. Mushroom exporters. 180 pp.

Soft cover. Zustand: New. This book entitled 'A Textbook On Forestry Extension' gives a comprehensive idea of the theoretical aspects of Forestry Extension and the basics of Extension Education besides covers the communication methods and transfer of Technology in Forestry and Agroforestry. Forestry and Agroforestry Science is now the need of the hour and the importance of trees outside forests for increasing the green cover and as a resource base for the entire industrial Agroforestry which is inevitable in all the Policy discussions of the Country. Hence, Forestry Extension organizations and participatory approaches in forestry technology transfer could be an innovative mechanism for the overall development of society.

Hardbound. Zustand: As New. Contents: 1. Introduction. 2. Why vermicomposting. 3. Vermicomposting materials. 4. Earthworms. 5. Ways to make compost. 6. Methods of earthworms measurement. 7. Vermicomposting: a world scenario. 8. Bibliography. 9. Glossary. 10. Appendixes. 11. Subject index. From the preface: "This book is an attempt to gather related information on this aspect in a simple and practical manner so that these may utilized by all the agencies indulged in the vermicomposting whether they are scientists, worm growers, farmers, city planners, environmentalists or even house keepers. The book includes chapters like introduction, why vermicomposting,vermicomposting materials, earthworms, ways to make compost, methods of earthworm measurement which gives a comprehensive and detail practical known how about the subject. Vermicomposting, a world scenario, appendices such as worm questions and answers, directory of vermiculture resources, important websites and e-mail addresses given at the end will make this script more useful. Efforts are made to make manuscript self explanatory however, any suggestions for improvement will be highly appreciated."No. 30618 191 pp.

Contents 1 Nature of Toxins 2 Naturally Occurring Toxins in Food 3 Toxins as Food Additives 4 Toxins from Bacteria Fungi and Plants 5 Human Health Hazard by Microbial Degraded Grain 6 Toxins from Animals 7 Metallic Corrosive and Non-Metallic Toxins 8 Insecticides and Weedicides 9 Drug Abuse 10 Toxicity Studies in Animals 11 Receptors12 Bioaccumulation of Toxicants 13 Adendum14 Glossary 15 References 16 Subject IndexA common person often mentions toxic substances This indicates his level of perturbness as these substances especially those that are manmade are found in and around including plants animals food beverages agricultural and horticultural products medicines and various types of industrial products There seems to be the urgent need of understanding the basic principles that will help a common person to handle these substances as day by day these toxicants are becoming more effectively dangerous as compared to the natural poisons from animals and plants These basic principles are from chemistry physics botany zoology microbiology geography sociology ethnology politics environmental sciences etcCurrently toxicology is one of the most discussed topics globally including media politics NGOS etc It has found its most deserving place in the curricula of the universitiesIn this presentation an effort is made to elucidate the different aspects which are directly or indirectly are linked with toxicology Apart from student community those who are keen to understand the complexity of toxicology may find it useful and interesting effort 167 pp.

Zustand: As New. Contents: 1. Bioinformatics technology: an introduction. 2. Applications of computers in bioinformatics research. 3. Sequencing DNA and RNA. 4. Sequencing proteins. 5. Archives and information retrieval. 6. Available database. 7. Applications of bioinformatics. References. From the preface: Past few years have witnessed nothing less than a flood of nucleic acid and protein sequence data. The management of these data would be impossible without computers. Bioinformatics is the combination of biology and information technology. This applied branch of science deals with the computer-based analysis of large biological data sets. Bioinformatics incorporates the development of databases to store and search data, and of statistical tools and algorithms to analyze and determine relationships between biological data sets, such as macromolecular sequences, structures, expression profiles and biochemical pathways. It is mainly used for Map genomes and identifies genes, to determine protein structure and simulate protein interactions, to discover new therapeutic targets and design medicines aimed at the targets and to assess the effects of virtual mutations on gene function. Computers are required in bioinformatics for their processing speed (allowing repetitive tasks to be carried out quickly and systematically) and for their problem-solving power. The present book is an effort to provide introductory information on bioinformatics. 150 pp.

figs, tables, plates (illustrator). Contents Preface Acknowledgements 1 Aquatic weeds a global problem 2 Economic importance of aquatic weeds 3 Utility of some important aquatic weeds 4 Growth and development of some aquatic weeds 5 Need for further research on aquatic weeds 6 Bibliography AppendicesWater one of the most important natural resources is often adversely affected by aquatic weeds resulting in critical problems in agriculture navigation irrigation pisciculture and public health The menace of water weeds is reaching alarming proportions in many parts of the world The problem is global but more pronounced in tropical and subtropical zone where warm weather supports profuse growth of aquatic plants In India large irrigation projects have been reported to be adversely affected by profusely growing aquatic weedsThe scientists and technologists therefore gradually changed their destructive attitude towards these apparently troublesome plants and tried to turn them to productive use Limited research so far being carried out in this line has yielded encouraging results It has been found that aquatic weeds constitute a crop of great potential value It is a highly productive crop requiring no tillage fertilizer seed or cultivation The plants have been found to have potential for use as animal feed human food soil additives and fuelThis monograph is a humble attempt to summarize to some extent the information gathered so far by the international scientists on aquatic weeds and their economic importance jacket 104 pp.

Hardbound. Zustand: As New. New. Contents 1. Introduction. 2. Crop whether observatory. 3. Weather elements various instruments their installation and maintenance. 4. Calculation of time. 5. Measurements of air temperature and soil temperature. 6. Measurement of atmospheric humidity. 7. Measurement of rainfall. 8. Measurement of wind. 9. Measurement of evaporation. 10. Measurement of solar radiation. 11. Measurement of cloud amount. 12. Preparation of Isohytal and Isothermal Maps. 13. Concept of potential evapotranspiration. 14. Rainfall probability analysis. 15. Study of microclimate. 16. Water budgeting. 17. Synoptic charts and weather reports. Appendix Standard meteorological weeks to be followed (As Per IMD). Selected references. Agriculture and weather are the integral components of crop production system. Successful crop production depends on the prevailing weather conditions at different stages for crop growth. Understanding of the complexity of weather conditions needs the precise measurement of various weather elements for proper interpretation in relation to crop growth and development. The process of measurement involves elaborate arrangements for the establishment of Agrometerological observatory with various weather instruments as per IMD specifications. Further timely recording calculation and the use of this data for forecasting or for the preparation of crop weather bulletins needs thorough knowledge of the science of Agrometeorology. In the recent past there has been revision and reorientation of the syllabus for undergraduates in agriculture horticulture forestry and allied subjects. Further external evaluation component has been included in the examination system. In this context there has been a felt need to develop text books for theory and practical manual for practical as per the syllabus to equip the students and also as a reference material for the course teachers. This book would be useful to the students and all those who are involved in the measurement of weather data. 102 pp.

Soft cover. Zustand: New. Ever since its development as a separate subject during the last over six decades or so, weed science is perhaps one agricultural science that is making advances by leaps and bounds, worldwide. Thousands of research papers are published every year, both in the identification of the new weed problems and finding their feasible solutions. There are several good books on weed management available but what sets this book apart is that it focuses at equipping the students of the first course in weed science, with fundamentals behind each aspect of weeds and weed management in an easy to grasp, text book manner, without missing any quarter of the host of recent developments. This is the key strength of the book. An important feature of advances in weed science is that while, by and large, the older findings remain valid, the new ones act as complements, and not as substitutes to these. Therefore, in this new title of weed science in your hands, care has been taken to maintain the rationality of the basic information on the subject, while incorporating carefully selected, recent research findings. There are sixteen chapters in the book each of which is backed by a set of relevant practical and some mind searching reference questions. In the initial five chapters there is a marked thrust on bringing home to the students the factors that govern the weed occurrence in different crop situations in terms of weed species as well as weed densities. There is emphasis on the insidious nature of weeds and multifarious damages imposed by them on our agricultural and aesthetic environment, and their persistence in nature against all odds. The Chapters 6 to 9 reveal the various options developed by man to deal with weeds in different ecological situations, like the good crop husbandry practices, the use of herbicides and bio-herbicides, the biological control of weeds, and the employment of genetic engineering, allelochemicals, soil solarization, and the like special activities in weed management. These practices, along with the preventive measures, collectively form the subject matter of integrated weed management (IWM) in the book. The strong and weak points of each element of IWM have been highlighted to give students an insight into the subject. The next set of Chapters 10 to 12 are devoted to fundamental functions of more common herbicides available in India, their behaviour in soils and plants, their possible residues in our environment, and the associated effects resulting in the new weed problems. All herbicides have been identified by their common and chemical names. The last set of Chapters 13 to 16 describe in sufficient details the use of herbicides as complements to the other weed control activities in field and vegetable crops, plantations and grasslands, and in the aquatic environment, besides in the treatment of some specific noxious weeds. There is a Glossary of terms often used in the first course of weed science given at the end of the 16 chapters of the book to provide the students a handy, knowledge testing and revision tool. There are nine Appendices in the book which, hopefully, shall complement the text of different chapters. Of these, the Appendix-1 unveils a bonanza of over 60, finely drawn sketches of common weeds selected from the weed flora reported in literature from different parts of India.

Soft cover. Zustand: New. 3rd Edition. The book describes fungi, bacteria and viruses (as well as subviral pathogens) in light of recent information. It introduces the three domains (=super kingdoms), the Archaea, Bacteria and Eukarya, proposed by Carl Woese, and the new kingdoms of Protozoa, Chromista and Straminopila. The new classification of fungi (Kirk et al. 2001), bacteria (Bergeys Manual of Systematic Bacteriology, 2004) and viruses (International Committee on Taxonomy of Viruses, 2006) have been included. There are descriptions of Viroids, Virusoids, Virnos, and Prions - organisms before which viruses pale into insignificance in smallness of their size and ingenuity of parasitism. There is a separate chapter on AIDS and HIV. I am sure students will appreciate these additions and derive much value by the newer information about these organisms.