A Textbook of Agronomy PDF Download

Author: B. Chandrasekaran
Publisher: New Age International
ISBN: 9788122427431
Category : Agronomy
Languages : en
Pages : 0

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Author: Francisco J. Villalobos
Publisher: Springer
ISBN: 3319461168
Category : Technology & Engineering
Languages : en
Pages : 543

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Book Description
This textbook explains the various aspects of sustainable agricultures to undergraduate and graduate students. The book first quantifies the components of the crop energy balance, i.e. the partitioning of net radiation, and their effect on the thermal environment of the canopy. The soil water balance and the quantification of its main component (evapotranspiration) are studied to determine the availability of water to rain fed crops and to calculate crop water requirements. Then it sets the limitations of crop production in relation to crop phenology, radiation interception and resource availability (e.g. nutrients). With that in mind the different agricultural techniques (sowing, tillage, irrigation, fertilization, harvest, application of pesticides, etc.) are analyzed with special emphasis in quantifying the inputs (sowing rates, fertilizer amounts, irrigation schedules, tillage plans) required for a given target yield under specific environmental conditions (soil & climate). For all techniques strategies are provided for improving the ratio productivity/resource use while ensuring sustainability. The book comes with online practical focusing on the key aspects of management in a crop rotation (collecting weather data, calculating productivity, sowing rates, irrigation programs, fertilizers rates etc).

Author: D. Kent Shannon
Publisher: John Wiley & Sons
ISBN: 0891183663
Category : Technology & Engineering
Languages : en
Pages : 272

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Book Description
With the growing popularity and availability of precision equipment, farmers and producers have access to more data than ever before. With proper implementation, precision agriculture management can improve profitability and sustainability of production. Precision Agriculture Basics is geared at students, crop consultants, farmers, extension workers, and practitioners that are interested in practical applications of site-specific agricultural management. Using a multidisciplinary approach, readers are taught to make data-driven on-farm decisions using the most current knowledge and tools in crop science, agricultural engineering, and geostatistics. Precision Agriculture Basics also features a stunning video glossary including interviews with agronomists on the job and in the field.

Author: S.S. Bhavikatti
Publisher: New Age International
ISBN: 812242760X
Category :
Languages : en
Pages : 22

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Author: Victor Sadras
Publisher: Elsevier
ISBN: 0124169791
Category : Technology & Engineering
Languages : en
Pages : 566

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Book Description
From climate change to farming systems to genetic modification of organisms, Crop Physiology, Second Edition provides a practical tool for understanding the relationships and challenges of successful cropping. With a focus on genetic improvement and agronomy, this book addresses the challenges of environmentally sound production of bulk and quality food, fodder, fiber, and energy which are of ongoing international concern. The second edition of Crop Physiology continues to provide a unique analysis of these topics while reflecting important changes and advances in the relevant science and implementation systems. Contemporary agriculture confronts the challenge of increasing demand in terms of quantitative and qualitative production targets. These targets have to be achieved against the background of soil and water scarcity, worldwide and regional shifts in the patterns of land use driven by both climate change and the need to develop crop-based sources of energy, and the environmental and social aspects of agricultural sustainability. - Provides a view of crop physiology as an active source of methods, theories, ideas, and tools for application in genetic improvement and agronomy - Written by leading scientists from around the world - Combines environment-specific cropping systems and general principles of crop science to appeal to advanced students, and scientists in agriculture-related disciplines, from molecular sciences to natural resources management

Author: Jerry L. Hatfield
Publisher: John Wiley & Sons
ISBN: 0891188533
Category : Technology & Engineering
Languages : en
Pages : 432

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Degradation of soils continues at a pace that will eventually create a local, regional, or even global crisis when diminished soil resources collide with increasing climate variation. It's not too late to restore our soils to a more productive state by rediscovering the value of soil management, building on our well-established and ever-expanding scientific understanding of soils. Soil management concepts have been in place since the cultivation of crops, but we need to rediscover the principles that are linked together in effective soil management. This book is unique because of its treatment of soil management based on principles—the physical, chemical, and biological processes and how together they form the foundation for soil management processes that range from tillage to nutrient management. Whether new to soil science or needing a concise reference, readers will benefit from this book's ability to integrate the science of soils with management issues and long-term conservation efforts.

Author: A. K. Vyas
Publisher:
ISBN: 9788183600347
Category : Agriculture
Languages : en
Pages : 496

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Author: Jerry L. Hatfield
Publisher: John Wiley & Sons
ISBN: 0891183574
Category : Technology & Engineering
Languages : en
Pages : 656

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Can we unlock resilience to climate stress by better understanding linkages between the environment and biological systems? Agroclimatology allows us to explore how different processes determine plant response to climate and how climate drives the distribution of crops and their productivity. Editors Jerry L. Hatfield, Mannava V.K. Sivakumar, and John H. Prueger have taken a comprehensive view of agroclimatology to assist and challenge researchers in this important area of study. Major themes include: principles of energy exchange and climatology, understanding climate change and agriculture, linkages of specific biological systems to climatology, the context of pests and diseases, methods of agroclimatology, and the application of agroclimatic principles to problem-solving in agriculture.

Author: Marcel Mazoyer
Publisher: NYU Press
ISBN: 1583674918
Category : History
Languages : en
Pages : 529

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Book Description
Only once we understand the long history of human efforts to draw sustenance from the land can we grasp the nature of the crisis that faces humankind today, as hundreds of millions of people are faced with famine or flight from the land. From Neolithic times through the earliest civilizations of the ancient Near East, in savannahs, river valleys and the terraces created by the Incas in the Andean mountains, an increasing range of agricultural techniques have developed in response to very different conditions. These developments are recounted in this book, with detailed attention to the ways in which plants, animals, soil, climate, and society have interacted. Mazoyer and Roudart’s A History of World Agriculture is a path-breaking and panoramic work, beginning with the emergence of agriculture after thousands of years in which human societies had depended on hunting and gathering, showing how agricultural techniques developed in the different regions of the world, and how this extraordinary wealth of knowledge, tradition and natural variety is endangered today by global capitialism, as it forces the unequal agrarian heritages of the world to conform to the norms of profit. During the twentieth century, mechanization, motorization and specialization have brought to a halt the pattern of cultural and environmental responses that characterized the global history of agriculture until then. Today a small number of corporations have the capacity to impose the farming methods on the planet that they find most profitable. Mazoyer and Roudart propose an alternative global strategy that can safegaurd the economies of the poor countries, reinvigorate the global economy, and create a livable future for mankind.

Author: Charles A. Francis
Publisher: ASA-CSSA-SSSA
ISBN: 9780891181736
Category : Technology & Engineering
Languages : en
Pages : 382

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Book Description
This book represents a current look at what we know about organic farming practices and systems, primarily from the U.S. and Canadian perspectives. the discussion begins with history and certification, ecological knowledge as the foundation for sustaining food systems, and biodiversity. The next chapters address crop-animal systems; forages, grain, oil seed, and specialty crops; organic cropping and soil nutrient needs; and vegetation and pest management. Readers will next learn about marketing organics, organic foods and food security, and education and research. The book concludes with a survey of the future of organic farming and a perspective on the agricultural industry and the future of the rural sector.--COVER.