Author:
Publisher: CIMMYT
ISBN: 9706480390
Category : Agriculture
Languages : en
Pages : 36

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Book Description

Author: R. M. Cionco
Publisher:
ISBN:
Category : Air flow
Languages : en
Pages : 206

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Book Description
Effort has been expended in modeling air flow within and above simple roughness elements for neutral steady-state conditions. Application of the ideal canopy flow concept suggested by Cionco, Ohmstede and Appleby is now extended to various natural and artificial canopies of simple or complex structure. Properties and characteristics considered were: Shape of the unit canopy wind profile, intensity of turbulence magnitudes, an index of canopy flow, and the effects of density and flexibility variations upon the flow. The profile shape is characteristic and best described by an exponential relationship within simple-structured elements. In complex structures, the profiles exhibited low-level maximums and no-gradient layers. Above the vegetation, the logarithmic wind relation was valid for each canopy type. Intensity of turbulence was relatively uniform with height for simple canopies and significantly non-uniform with height in complex structures, with large leaf area maximums and very low wind speeds. The ideal canopy flow concept can potentially serve many disciplines and efforts besides micrometeorology and diffusion research. If to serve no other purpose, it can be used to establish the initial formulation of a boundary condition or minor portion of a larger problem. The mathematical simplicity of the concept may be its most important quality when it is to be used as part of a larger system of equations.

Author: T. Pawlowski
Publisher: Springer Science & Business Media
ISBN: 1475796641
Category : Science
Languages : en
Pages : 334

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Book Description
The first meeting in this series was organized by Prof. Pawlowski and Dr. Lacy in 1976 at the Marie Curie-Sklodowska University in Lublin, Poland. The conference dealt with various physicochemical methodologies for water and wastewater treatment research projects that were jointly sponsored by US EP A and Poland. The great interest expressed by the participants led the organizers to expand the scope of the second conference, which was also held in Poland in September 1979. The third and enlarged symposium was again successfully held in 1981 in Lublin, Poland. At that time the participating scientists and engineers expressed their desire to broaden the coverage as well as the title of the conference series. The International Committee, ap proved the title "Chemistry for the Protection of the Environment" and designated that date of the fourth conference, CPE IV, which was convened in September 1983 at the Paul Sabatier University in Toulouse, France, and was hosted and arranged by Prof. A. Verdier. This conference series included participants from various government agencies, academia, and the private sector, representing industrialized countries as well as emerging nations, both the East and West in an independent, non politica! forum.

Author: Munir Ozturk
Publisher: Academic Press
ISBN: 0128195673
Category : Technology & Engineering
Languages : en
Pages : 388

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Book Description
Climate Change and Food Security with Emphasis on Wheat is the first book to present the full scope of research in wheat improvement, revealing the correlations to global issues including climate change and global warming which contribute to food security issues. Wheat plays a key role in the health of the global economy. As the world population continuously increases, economies modernize, and incomes rise, wheat production will have to increase dramatically to secure it as a reliable and sustainable food source. Since covering more land area with wheat crops is not a sustainable option, future wheat crops must have consistently higher yields and be able to resist and/or tolerate biotic and abiotic stresses that result from climate change. Addressing the biophysical and socioeconomic constraints of producing high-yielding, disease-resistant, and good quality wheat, this book will aid in research efforts to increase and stabilize wheat production worldwide. Written by an international team of experts, Climate Change and Food Security with Emphasis on Wheat is an excellent resource for academics, researchers, and students interested in wheat and grain research, especially as it is relevant to food security. - Covers a wide range of disciplines, including plant breeding, genetics, agronomy, physiology, pathology, quantitative genetics and genomics, biotechnology and gene editing - Explores the effect of climate change on biotic stresses (stripe rust, stem rust, leaf rust, Karnal bunt, spot blotch) on wheat production and utilization of biotechnology - Focuses on whole genome sequencing and next-generation sequencing technologies to improve wheat quality and address the issue of malnutrition in developing world

Author: Yeshwant Ramchandra Mehta
Publisher: Springer
ISBN: 3319064657
Category : Science
Languages : en
Pages : 265

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Book Description
Wheat Diseases and Their Management addresses biotic and abiotic constrains to wheat production. Besides detailed illustrations and descriptions of the most important diseases of wheat in the world, it offers an updated view on the reemergence of some old diseases and the occurrence of new races of the pathogen. It deals with the sustainability of wheat production through precision agriculture and focuses on the importance of conservation tillage. The book also deals with pillars of integrated disease management which would be eco-friendly and reduce severity of diseases and yield losses, with acquired Latin-American experiences of more than 40 years.

Author: Madhubun
Publisher: Vikas Publishing House
ISBN: 935271900X
Category : Science
Languages : en
Pages : 160

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Book Description
1. Geography textbook for classes 6 to 8 for ICSE Board schools. 2. Mapped to the New Curriculum published by the CISCE for the Upper Primary Level 3. Picture Study to enable recapitulation and gauge understanding in every lesson 4. Check-In for a quick glance on the points of focus. 5. Let’s Take Off has Chapter opening activity which acts as ice-breaker. 6. Upgrade has Additional information and interesting facts. 7. Cruise Along includes interesting activities. 8. Standby poses thought-provoking questions. 9. Touch Down offers a variety of questions for thorough grasp of concepts. 10. Photo Album has picture-based activity to stimulate psycho-motor domain. 11. Life Skills present the learners with real life scenarios to test various life skills. 12. Explore More has Concept-based project to research, apply knowledge and gain hands on practice. 13. Extra Miles provides Web links for further study. 14. Travelogue offers a crisp chapter summary in the form of a web chart. 15. Double Spreads provides attractive infographics based on specific concepts. 16. Two Model Test Papers with a variety of objective and subjective questions. 17. Practice Maps at the end of the book for reinforcement. 18. Terms to Know - Glossary of geographical concepts at the end of the book.

Author: Aakash Goyal
Publisher: BoD – Books on Demand
ISBN: 9535105272
Category : Science
Languages : en
Pages : 255

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Book Description
This book provides us a thorough overview of Crop Plant with current advance in research. Divided into two section based on the chapters contents. Chapter 1 provides information about markers and next generation sequencing technology and its use. Chapter 2 is about how we can use Silicon for Drought tolerance. Chapter 3 is to deal with the major problem of rising CO2 and O3 causing environmental pollution. Chapter 4 covers the phenomena of RNAi and its use, application in crop science. Chapter 5 is a review for boron deficiency in soils and how to deal with it for better crops. Chapter 6-10 provide some information regarding recent works going on in crop science.

Author: Shobha Sondhia
Publisher: Springer
ISBN: 9811310386
Category : Technology & Engineering
Languages : en
Pages : 475

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Book Description
Herbicides constitute about 60% of the total pesticides consumed globally. In India, the use of herbicides started initially in tea gardens and picked up in the 1970s, when the high-yielding varieties of rice and wheat were introduced. Presently, 67 herbicides are registered in the country for controlling weeds in crops including cereals, pulses, oilseeds, fibre and tuber crops, and also in the non-crop situations. These chemicals are becoming increasingly popular because of their efficiency and relatively low cost compared with manual or mechanical weeding operations. The contribution of herbicide to total pesticide use, which was only 10-15% during the first decade of the 21st century, has now increased to about 25% with an annual growth rate of 15-20%, which is much higher than insecticides and fungicides. Though the application of herbicides is minimizing yield loss to a great extent, their residues in the food chain and surface and groundwater create some environmental nuisance particularly to non-target organisms. Research on pesticide residues in India was started during 1970s, when such chemicals were introduced on a greater scale along with high-yielding variety seeds, irrigation and chemical fertilizers for increasing food production. However, the herbicide residue research was not given much emphasis until 1990s. The Indian Council of Agricultural Research initiated a national level programme known as All India Coordinated Research Project on Weed Management through the NRC-Weed Science as the main centre along with some centers of ICAR Institutes and state agricultural universities. Over the last two decades, adequate information was generated on estimation, degradation and mitigation of herbicide residues, which were documented in annual reports, bulletins, monographs and scientific articles. However, there was no consolidated compilation of all the available information providing a critical analysis of herbicide residues. Accordingly, an effort has been made in the publication to compile the available information on herbicide residues in India. This is the first report of its kind which presents the findings of herbicide residues and their interactions in the biotic and abiotic environment. There are 16 chapters contributed by the leading herbicide residue scientists, each describing the present status of herbicide use, crops and cropping systems, monitoring, degradation and mitigation, followed by conclusions and future lines of work. This book will be useful to the weed scientists in general and herbicide residue chemists in particular, besides the policy makers, students and all those concerned with the agricultural production in the country.

Author: Stephen R. MacKinnon
Publisher: Stanford University Press
ISBN: 9780804755092
Category : History
Languages : en
Pages : 408

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Book Description
This book describes, in vivid detail, the history of the Japanese invasion and occupation and of different parts of China, from the viewpoints of scholars in China, Japan, and the West

Author: Song Yingxing
Publisher: DeepLogic
ISBN:
Category :
Languages : en
Pages : 130

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Book Description
The book "Heavenly Creations" (天工开物, Tian Gong Kai Wu) was first published in 1637 (Ming Chongzhen decade Landmarks), a total of three volumes eighteen, the book is a collection of agriculture, handicrafts, such as machinery, brick , ceramics, sulfur , candle, paper, weapons, gunpowder , textile, dyeing, salt production, coal mining, oil extraction and other production technologies. "Tian Gong Kai Wu" is the first comprehensive work on agriculture and handicraft production in the world. It is a comprehensive scientific and technical work in ancient China. Some people also call it an encyclopedic work. The author is Ming The scientist Song Yingxing . Foreign scholars call it "China's 17th century craft encyclopedia." In the book, the author emphasizes that human beings should coordinate with nature and manpower should be compatible with natural forces. It is the most abundant preserved document in China's scientific and technological history. It focuses more on the handicraft industry and reflects the productivity of China during the last years of the Ming Dynasty.