Mr. Duhamel's 1728 Treatise on the Violet Root Rot of Saffron Crocus PDF Download
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Author: A. van Huis
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 946
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Author: A. van Huis
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 946
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Author: Matteo Valleriani
Publisher: Springer
ISBN: 3319456717
Category : Science
Languages : en
Pages : 493
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Book Description
The Structures of Practical Knowledge investigates the nature of practical knowledge – why, how, when and by whom it is codified, and once codified, how this knowledge is structured. The inquiry unfolds in a series of fifteen case studies, which range in focus from early modern Italy to eighteenth century China. At the heart of each study is a shared definition of practical knowledge, that is, knowledge needed to obtain a certain outcome, whether that be an artistic or mechanical artifact, a healing practice, or a mathematical result. While the content of practical knowledge is widely variable, this study shows that all practical knowledge is formally equivalent in following a defined workflow, as reflected in a construction procedure, a recipe, or an algorithm. As explored in the volume’s fifteen contributions, there are three levels at which structures of practical knowledge may be understood and examined. At the most immediate level, there are the individual workflows that encompasses practical knowledge itself. Probing further, it is possible to examine the structure of practical knowledge as it is externalized and codified in texts, drawings, and artifacts such as models. Finally, practical knowledge is also related to social structures, which fundamentally determine its dissemination and evolution into new knowledge structures. The social structures of professionals and institutions represent the critical means by which practical knowledge takes form. These actors are the agents of codification, and by means of selection, appropriation, investment, and knowledge development, they determine the formation of new structures of practical knowledge. On a more abstract level, the creation of new knowledge structures is understood as constituting the basis for the further development of scientific knowledge. Rich in subject matter and incisive in the theory it lays out, this volume represents an important contribution to the history of science and epistemology. Individually, the fifteen case studies – encompassing the history of architecture, mining, brewing, glass production, printing, ballistics, mechanics, cartography, cosmology and astronomy – are replete with original research, and offer new insights into the history of science. Taken together, the contributions remodel historical epistemology as a whole, elucidating the underlining knowledge structures that transcend disciplinary boundaries, and that unite practitioners across time and space.
Author: Jan C. Zadoks
Publisher: Sidestone Press
ISBN: 9088901872
Category : History
Languages : en
Pages : 338
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Book Description
Mediterranean and West European pre-modern agriculture (agriculture before 1600) was by necessity ‘organic agriculture’. Crop protection is part and parcel of this agriculture, with weed control in the forefront. Crop protection is embedded in the medieval agronomy text books but specialised sections do occur. Weeds, insects and diseases are described but identification in modern terms is not easy. The pre-modern ‘Crop Portfolio’ is well filled, certainly in the Mediterranean area. The medieval ‘Pest Portfolio’ differs from the modern one because agriculture then was a Low External Input Agriculture, and because the proportion of cultivated to non-cultivated land was drastically lower than today. The pre-modern ‘Control Portfolio’ is surprisingly rich, both in preventive and interventive measures. Prevention was by risk management, intensive tillage, and careful storage. Intervention was mechanical and chemical. Chemical intervention used natural substances such as sulphur, pitch, and ‘botanicals’. Some fifty plant species are mentioned in a crop protection context. Though application methods look rather modern they are typically low-tech. Among them are seed disinfection, spraying, dusting, fumigation, grease banding, wound care, and hand-picking but also scarification, now outdated. The reality of pest outbreaks and other damages is explored as to frequency, intensity, and extent. Information on the practical use of the recommended treatments is scanty. If applied, their effectiveness remains enigmatic. Three medieval agronomists are at the heart of this book, but historical developments in crop protection from early Punic, Greek, and Roman authors to the first modern author are outlined. The readership of these writers was the privileged class of landowners but hints pointing to the exchange of ideas between them and the common peasant were found. Consideration is given to the pre-modern reasoning in matters of crop protection. Comparison of pre-modern crop protection and its counterpart in modern organic agriculture is difficult because of drastic changes in the relation between crop areas and non-crop areas, and because of the great difference in yield levels then and now, with several associated differences.
Author: Anne Marte Tronsmo
Publisher: CABI
ISBN: 1789243181
Category : Science
Languages : en
Pages : 462
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Book Description
This textbook provides a comprehensive introduction to all aspects of plant diseases, including pathogens, plant-pathogen interactions, their management, and future perspectives. Plant diseases limit potential crop production and are responsible for considerable losses in agriculture, horticulture and forestry. Our global food production systems are under increasing pressure from global trade, climate change and urbanization. If we could alleviate the losses due to plant diseases, we would be able to produce roughly 20% more food - enough to feed the predicted world population in 2050. Co-authored by a group of international teachers of plant pathology who have collaborated for many years, the book gives expert and seamless coverage. Plant Pathology and Plant Diseases: Addresses major advances in plant-pathogen interactions, classification of plant pathogens, and the methods of managing or controlling disease Is relevant for a global audience; it covers many examples of diseases with an impact worldwide but with an emphasis on disease of particular importance in a temperate context Features over 400 striking figures and colour photographs It is suitable for graduate students and advanced undergraduates studying plant pathology, biology, agriculture and horticulture.
Author: J.C. Zadoks
Publisher: BRILL
ISBN: 9086866530
Category : Nature
Languages : en
Pages : 249
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Book Description
Food security has been and always will be a human concern. Food security has always been fragile, threatened by a variety of factors including plant disease epidemics. Several plant disease epidemics of the past lead to questions like: What happened? How did people deal with these epidemics? What were the social and political consequences? This volume deals with such questions in six selected chapters. Chapter 1 discusses black stem rust of wheat in antiquity, and how its epidemics were perceived by the ancients. Chapter 2 reconstructs a forgotten epidemic of yellow stripe rust, 1846, on rye, a staple food in Continental Europe. Chapter 3 describes the epidemics of potato late blight in Continental Europe, 1844-46, that caused the Continental Famine and - in the longer reach - contributed to the European revolutions of 1848. Chapter 4 studies the impact of plant disease on the food situation in the neutral Netherlands during World War I. Chapter 5 looks at belligerent Germany during World War I, ravaged by plant disease. Chapter 6 treats the problem of under-rating and over-estimating the effect of plant diseases on the course of history: the effects of ergot on political events in Russia, 1722, and in France, 1779, of black stem rust on wheat on the Russian Famine, 1932/3, and of rice brown spot on the Bengal Famine, 1943. This publication is of interest to plant pathologists, historians, economists and sociologists, interested in history, and with a focus on food.
Author: Ulf Dieckmann
Publisher: Cambridge University Press
ISBN: 0521642949
Category : Mathematics
Languages : en
Pages : 583
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Book Description
The field of theoretical ecology has expanded dramatically in the last few years. This volume gives detailed coverage of the main developing areas in spatial ecological theory, and is written by world experts in the field. Integrating the perspective from field ecology with novel methods for simplifying spatial complexity, it offers a didactical treatment with a gradual increase in mathematical sophistication from beginning to end. In addition, the volume features introductions to those fundamental phenomena in spatial ecology where emerging spatial patterns influence ecological outcomes quantitatively. An appreciation of the consequences of this is required if ecological theory is to move on in the 21st century. Written for reseachers and graduate students in theoretical, evolutionary and spatial ecology, applied mathematics and spatial statistics, it will be seen as a ground breaking treatment of modern spatial ecological theory.
Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 774
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Author:
Publisher:
ISBN:
Category : English imprints
Languages : en
Pages : 1332
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Author: Syama Prasad Raychaudhuri
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 144
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Author: Landbouwhogeschool Wageningen
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 1134
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