Author: Ernest Friend
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 230

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Book Description

Author: LeRoy Holm
Publisher: John Wiley & Sons
ISBN: 9780471047018
Category : Gardening
Languages : en
Pages : 1158

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Book Description
Responsible for a high proportion of the world's crop losses, weedstake away food that the world badly needs. They decrease thequality and quantity of vegetable fibers, wool, and hides, andinterfere with fishing, irrigation, hydroelectric power production,and the movement of shipping vessels. In order to recognize thetrue magnitude of the weed problem, and to be better equipped todesign effective weed control methods, it is vital to identify andlearn as much as possible about the many different species of thisdestructive agricultural predator. The culmination of four decades of global research, World Weedspresents comprehensive and up-to-date information on over 100weeds--addressing recent changes in such areas as crop tillagemethods, herbicide use, and agricultural runoff. This monumentalwork, featuring a wealth of original data from the authors,provides extensive coverage of the known biology of each species.Each entry contains a full botanical description, plus importantdetails on habitat requirements and distribution, seed production,ecology, physiology, crop impact, and more. Generously suppliedwith dozens of unique illustrations and species distribution mapscovering over 100 countries, this definitive resource boasts anextensive multilingual index of common names, and a massivebibliography with over 3,000 references to facilitate furtherreading and research. World Weeds is a truly masterful referencethat will be celebrated by weed and crop scientists, botanists, andothers for years to come.

Author:
Publisher:
ISBN:
Category : Plant diseases
Languages : en
Pages : 300

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Book Description

Author: William Shurtleff; Akiko Aoyagi
Publisher: Soyinfo Center
ISBN: 1948436205
Category : Soybean
Languages : en
Pages : 1481

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Book Description
The world's most comprehensive, well documented and well illustrated book on this subject. With extensive subject and geographic index. 152 photographs and illustrations - mostly color, Free of charge in digital format on Google Books.

Author:
Publisher:
ISBN:
Category : Plant diseases
Languages : en
Pages : 1096

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Book Description

Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 222

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Book Description

Author: United Nations Office on Drugs and Crime
Publisher: United Nations Publications
ISBN: 9789211482423
Category : Business & Economics
Languages : en
Pages : 0

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Book Description
Cannabis products are the most widely trafficked drugs worldwide, and it also remains the most widely used drug worldwide. At the same time, production methods have become increasingly sophisticated, resulting in the availability in illicit markets of a wide range of cannabis products. This updated and significantly revised manual has been prepared taking into account both developments in analytical technology and advances in the science of cannabis. It is aimed at the harmonization and establishment of recommended methods of analysis for national drug analysis laboratories. The manual suggests approaches that may assist drug analysts in the selection of methods appropriate to the sample under examination and provide data suitable for the purpose at hand, leaving room also for adaptation to the level of sophistication of different laboratories and the various legal needs.

Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 1540

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Author:
Publisher:
ISBN:
Category : Seeds
Languages : en
Pages : 184

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Book Description

Author:
Publisher:
ISBN:
Category : Plant diseases
Languages : en
Pages : 100

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Book Description