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Nitrogenous Biofertilizers

Laxmi Lal

ISBN 10: 8185680892 / ISBN 13: 9788185680897
Published by Agrotech, Udaipur, 2004
Used Condition: As New Hardcover
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Contents Preface. I. Nitrogen dynamics in soills 1. Introduction. 2. Ammonification. 3. Nitrification. 4. Denitrification. 5. Ammonia volatilization. 6. Leaching losses of No3. 7. Erosional losses of nitrogen. 8. Loss of nitrogen oxides. 9. Nitrogen assimilation. 10. Nitrogen fixation. II. Azospirillum Introduction. 1. Characterization and identification. 2. Life cycle. 3. Isolation. 4. Maintenance and cultivation. 5. Taxonomy. 6. Physiology of azospirillum. 7. Survival and proliferation of azospirillum in soil. 8. Sites and processes of association. 9. Root morphology and azospirillum. 10. Causes and factors of growth response. 11. Factors affecting N2 fixation. 12. Rhizosphere competence and host plant specificity. 13. Biofertilizer studies. III. Azotobacter Introduction. 1. Life cycle of azotobacter. 2. Classification of the genus azotobacter. 3. Isolation. 4. Physiology. 5. Preparation of azotobacter inoculants. 6. Method of application. 7. External factors affecting biofertilizer efficiency. 8. Crop response to azotobacter inoculation. 9. Mysteries of crop response to azotobacter inoculation. IV. Rhizobium Introduction. 1. Collection. 2. Isolation. 3. Authentication. 4. Testing for effective rhizobia strains. 5. Classification of rhizobia. 6. Maintenance. 7. Methods of inoculating legumes. 8. Application of inoculants. 9. Rhizobial technology. 10. Storage. 11. Labelling the package. 12. Distribution. 13. Quality. 14. The process of nodulation. 15. Biochemistry of nitrogen fixation. 16. Nitrogenase. 17. Electron transport. 18. Physiological aspects of nitrogen fixation. 19. Factors affecting rhizobial survival nodulation and N2 fixation. 20. Moisture. 21. pH. 22. Light. 23. Biotics. 24. Soil acidity. 25. Carbon and carbohydrate metabolism. 26. Salinity. 27. Pesticides. Nitrogen is the mineral nutrient most often in short supply for plant nutrition. It represents the mineral fertilizer most applied to agricultural lands. This is because available soil N supplies are generally inadequate for optimum crop production. The world population is likely to double during next 50 years so also the demand for food. Provision of an adequate supply of fixed N is central to the successful meeting of the food challenge. Fertilizer nitrogen is not only costly but the growing awareness of environmental quality and limitations of non renewable resources is implicated as additional constraints. Biological N2 fixation has contributed to the productivity in natural and agricultural habitats from an early stage in the development of living matter on the earth. The principal need for a deeper understanding of nitrogenous biofertilizers is the urgent requirement to increase agricultural production for a seemingly galloping human population. Although all forms of N2 fixation including that by azotobacter azospirillum etc. contribute to such production increase in short term are likely to depend on the greater and more efficient utilization of legume Rhizobium symbiosis. The legumes are foremost in current research approaches to increasing protein production and the soil N supply. This book provides a comprehensive upto date account of various facets of N2 fixation by azospirillum and azotobacter in addition to rhizobium which is principal contributor to the N economy of many soils. 416 pp. Bookseller Inventory # 51221

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Title: Nitrogenous Biofertilizers

Publisher: Agrotech, Udaipur

Publication Date: 2004

Binding: Hardbound

Book Condition:As New

Edition: New

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