Biological Efficiency In Agriculture
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Biological Efficiency In Agriculture
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Author : C. R. W. Spedding
language : en
Publisher:
Release Date : 1981
Biological Efficiency In Agriculture written by C. R. W. Spedding and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Technology & Engineering categories.
Biological efficiency. Agriculture purposes, products and resources. Adaptation to the environment. The supply of nutrients. Reproduction in plants. Grain production. Pulse crops. Oil crops. Root and tuber production. Leaves, stems and flowers. Fruit and nut crops. Sugar production. Other crop products. Fibre production. Fuel crops. Production from lower plants. Adaptation to the environment. The supply of nutrients. Reproduction in animals. Meat production. Fish production. Egg production. Milk and milk products. Other food products. Non-food animal products. Animals for work. The use of faeces. The relative efficiency of plants and animals.
The Biological Efficiency Of Protein Production
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Author : J. G. W. Jones
language : en
Publisher: CUP Archive
Release Date : 1973
The Biological Efficiency Of Protein Production written by J. G. W. Jones and has been published by CUP Archive this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Cooking categories.
This 1973 volume reports the proceedings of a 1971 symposium considering the relative biological efficiency of alternative methods of protein production by plants and animals.
An Introduction To Agricultural Systems
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Author : C. Spedding
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
An Introduction To Agricultural Systems written by C. Spedding and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Technology & Engineering categories.
It would have been very easy to expand on all the sections of the first edition but I decided to try to retain the relatively short, introductory nature of the book. Some new material has been added, particularly where it has been possible to update data, and there has been some change of emphasis in places, in order to reflect changing world conditions. The book retains its original purpose, however, of introducing systems thinking as applied to agriculture. I am grateful to Angela Hoxey for help in preparing this edition, especially in relation to the preparation of tables and figures. C. R. W. SPEDDING v Preface to the First Edition The agricultural systems of the world represent a very large subject. Their study involves a great deal of fairly detailed knowledge, as well as a grasp of the structures and functions of the systems themselves. This book has been written as an introduction to such a study and it concentrates on an overall view, rather than on the detail, partly because of the need to relate the latter to some larger picture in order to appreciate the relevance and significance of the detail. This problem-of seeing the relevance of component studies and the significance of physical, biological and economic detail, and indeed principles-is encountered by many agricultural students right at the beginning of their university careers.
Biological Husbandry
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Author : B. Stonehouse
language : en
Publisher: Elsevier
Release Date : 2013-10-22
Biological Husbandry written by B. Stonehouse and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-22 with Technology & Engineering categories.
Biological Husbandry: A Scientific Approach to Organic Farming covers a proceeding of a symposium organized by International Institute of Biological Husbandry on August 26-30, 1980 at Wye College in London, United Kingdom. Said symposium aims to promote the scientific development of biological or organic agriculture. The text covers topics such as the assessment of conventional, biological, and integrated agriculture; soil use in temperate climates, organic matter cycles in tropical soils, and plant-microbial interactions; biological pest control, the importance of chemical agents and biotechnology in biological husbandry, and allelochemicals in the future of agriculture. The book is recommended for biologists and agriculturists who would like to know more about the studies in biological husbandry and its implications in the field.
Nutrient Use Efficiency From Basics To Advances
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Author : Amitava Rakshit
language : en
Publisher: Springer
Release Date : 2014-12-26
Nutrient Use Efficiency From Basics To Advances written by Amitava Rakshit and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-12-26 with Technology & Engineering categories.
This book addresses in detail multifaceted approaches to boosting nutrient use efficiency (NUE) that are modified by plant interactions with environmental variables and combine physiological, microbial, biotechnological and agronomic aspects. Conveying an in-depth understanding of the topic will spark the development of new cultivars and strains to induce NUE, coupled with best management practices that will immensely benefit agricultural systems, safeguarding their soil, water, and air quality. Written by recognized experts in the field, the book is intended to provide students, scientists and policymakers with essential insights into holistic approaches to NUE, as well as an overview of some successful case studies. In the present understanding of agriculture, NUE represents a question of process optimization in response to the increasing fragility of our natural resources base and threats to food grain security across the globe. Further improving nutrient use efficiency is a prerequisite to reducing production costs, expanding crop acreage into non-competitive marginal lands with low nutrient resources, and preventing environmental contamination. The nutrients most commonly limiting plant growth are N, P, K, S and micronutrients like Fe, Zn, B and Mo. NUE depends on the ability to efficiently take up the nutrient from the soil, but also on transport, storage, mobilization, usage within the plant and the environment. A number of approaches can help us to understand NUE as a whole. One involves adopting best crop management practices that take into account root-induced rhizosphere processes, which play a pivotal role in controlling nutrient dynamics in the soil-plant-atmosphere continuum. New technologies, from basic tools like leaf color charts to sophisticated sensor-based systems and laser land leveling, can reduce the dependency on laboratory assistance and manual labor. Another approach concerns the development of crop plants through genetic manipulations that allow them to take up and assimilate nutrients more efficiently, as well as identifying processes of plant responses to nutrient deficiency stress and exploring natural genetic variation. Though only recently introduced, the ability of microbial inoculants to induce NUE is gaining in importance, as the loss, immobilization, release and availability of nutrients are mediated by soil microbial processes.
Water Use Efficiency In Plant Biology
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Author : Mark Bacon
language : en
Publisher: John Wiley & Sons
Release Date : 2009-02-12
Water Use Efficiency In Plant Biology written by Mark Bacon and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-02-12 with Science categories.
This is the first volume to provide comprehensive coverage of the biology of water use efficiency at molecular, cellular, whole plant and community levels. While several works have included the phenomenon of water use efficiency, and others have concentrated on an agronomic framework, this book represents the first detailed treatment with a biological focus. The volume sets out the definitions applicable to water use efficiency, the fundamental physiology and biochemistry governing the efficiency of carbon vs water loss, the environmental regulation of this process and the detailed physiological basis by which the plant exerts control over such efficiency. It is aimed at researchers and professionals in plant physiology, biochemistry, molecular biology, developmental biology and agriculture. It will also inform those involved in formulating research and development policy in this topic around the world.
Eco Friendly Agro Biological Techniques For Enhancing Crop Productivity
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Author : Rakesh Singh Sengar
language : en
Publisher: Springer
Release Date : 2018-03-13
Eco Friendly Agro Biological Techniques For Enhancing Crop Productivity written by Rakesh Singh Sengar and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-03-13 with Technology & Engineering categories.
As the world population is exploding and alongside fluctuations in climate is also prevalent, there is an increasing stress on the food requirements of the population. We have an urgent necessity to produce more food in the limited agricultural land. Further, to feed 7 billion people there is a requirement of high yielding crops, without harming environment and limiting the use of unnecessary pesticide and chemical fertilizers. Therefore it has become crucial to develop agri-bio-techniques which are environment friendly and also give high crop productivity. Many countries are evaluating the utility of biotechnology and its role in addressing problems of food security and poverty. Biotechnology is the application of scientific and engineering principles to the processing and production of materials by utilising biological agents. These agents are exploited to provide goods and services. Agricultural biotechnology encompasses a growing list of techniques that range from simple probes to determine a relevant gene from the complete genome to manipulating genes for a desired outcome. Many other popular methods used in the realm of agricultural technology are – gene integration, Marker-assisted breeding, Tissue culture, Gene profiling or association mapping, Metabolomics etc. The fundamental challenge facing the scientific community is how to devise innovative strategies that will bring all developed as well as developing countries into the “biological fold” and to do so in ways that will take full advantage of advances in the biological sciences to curb poverty, improve public health, and promote human development. This book contains information on eco-friendly techniques for high crop productivity and it is a myriad of different techniques and technology used to sustain productivity in crop plants. There are fewer books focusing on large-scale organic farming, molecular farming etc. Multidisciplinary research and literature is needed to deliver knowledge and products into the marketplace which fulfil these requirements. The present book is a collection of literature contributed by experts, scientists, professors, and researchers from around the world, it emphasizes work of concerned scientist and his choice of techniques used for enhancement of agricultural production. This book analyses the use of modern techniques to increase crop yields, production, and risk of hunger linked to socioeconomic scenarios.
Agricultural Science Review
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Author :
language : en
Publisher:
Release Date : 1968
Agricultural Science Review written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Agriculture categories.
The Biology Of Agricultural Systems
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Author : C. R. W. Spedding
language : en
Publisher:
Release Date : 1975
The Biology Of Agricultural Systems written by C. R. W. Spedding and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with Technology & Engineering categories.
Management Of Biological Nitrogen Fixation For The Development Of More Productive And Sustainable Agricultural Systems
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Author : J.K. Ladha
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Management Of Biological Nitrogen Fixation For The Development Of More Productive And Sustainable Agricultural Systems written by J.K. Ladha and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Table 1. Global allocation of arable land between different com modities Globally, cereal cropping dominates cultivated land Commodities' Proportion of land area use (around 50% of total area, Table I). The remain (%) ing arable land is used for production of oilseed, fibre, or food and cash crops. In addition, vast areas are Cereals maintained under temporary or permanent pasture for Wheat 16 forage production (2-3 fold greater than the total area Rice 10 under cultivation and permanent crop; Table 1, Fig. Maize 9 O. All cultivated crops, except for legumes (pulses All other cereals 13 and legume oilseeds) require the soil to provide rel Total 48 atively large amounts of nitrogen (N). It is necessary for the three most important cereals, wheat (Triticum Legumes aestivum), rice (Oryza sativa) and maize (Zea mays), Legume pulses 5 1 to take up 20 to 40 kg soil N ha- over a period of 3 Legume oilseeds 6 to 5 months to satisfy the N requirements of the seed and supporting vegetative structure for each tonne of Total II grain produced (e. g. Fig. 2; Myers, 1988). Produc tive pastures on the other hand may assimilate> 100 Other crops kg N ha -\ each annum, of which 50 to 90% will be Other oilseeds 6 consumed by livestock in intensively grazed systems Beverages I Tobacco 7 (Ledgardy, 1991; Thomas, 1995).
