Download or read book Insect Pollination of Cultivated Crop Plants written by Samuel Emmett McGregor and published by . This book was released on 1976 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book How to Grow More Vegetables Ninth Edition written by John Jeavons and published by Ten Speed Press. This book was released on 2017-07-25 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world's leading resource on biointensive, sustainable, high-yield organic gardening is thoroughly updated throughout, with new sections on using 12 percent less water and increasing compost power. Long before it was a trend, How to Grow More Vegetables brought backyard ecosystems to life for the home gardener by demonstrating sustainable growing methods for spectacular organic produce on a small but intensive scale. How to Grow More Vegetables has become the go-to reference for food growers at every level, whether home gardeners dedicated to nurturing backyard edibles with minimal water in maximum harmony with nature's cycles, or a small-scale commercial producer interested in optimizing soil fertility and increasing plant productivity. In the ninth edition, author John Jeavons has revised and updated each chapter, including new sections on using less water and increasing compost power.

Download or read book National Horticultural Magazine written by and published by . This book was released on 1922 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Seed Trade Buyers Guide written by and published by . This book was released on 1921 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cacao and Its Allies written by José Cuatrecasas and published by . This book was released on 1964 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Urban and Community Forestry in the Northeast written by John E. Kuser and published by Springer Science & Business Media. This book was released on 2006-11-14 with total page 505 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a textbook for Urban/Community Forestry courses and a handbook for Shade Tree Commissions, tree wardens, State and National Forestry Services, and professional societies. It is the most complete text in this field because it addresses both culture and management, and the chapters have been written by experts who are active practitioners. The book provides observations and examples relevant to every urban center in the U.S. and elsewhere.

Download or read book Useful Plants of Neotropical Origin written by Heinz Brücher and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with useful plants of neotropical origin, i.e., plants which have been cultivated in Southern and Central America as well as their wild relatives. Quite a number of these trees and bushes have "conquerred" the world as early as 400 years ago and are nowadays of utmost importance for feeding the increasing world population (e.g., potatoes). It has been estimated that about 150 such useful plants stem from the "New World." This book does not only describe the current theories about their domestication, cultivation, and evolution; it also discusses biotechnological methods for improving their productivity. About the German edition: ..". One of the most interesting and recurring themes of this book concerns some little-known species of potential value which may well become important to a future which is certain to present us with serious problems, at least as far as alimentation is considered. BrA1/4cher's book is absolutely up to date in the taxonomic and nomenclatural sense..." "Excerpta Botanica"#1

Download or read book Old and New Plant Lore a Symposium written by A S 1865-1935 Hitchcock and published by Legare Street Press. This book was released on 2023-07-18 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A collection of essays and research on the folklore and traditional uses of plants, as well as recent scientific discoveries and findings. Topics range from medicinal properties to cultural significance, making this a comprehensive resource for botanists and enthusiasts alike. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Download or read book Return to Resistance written by Raoul A. Robinson and published by IDRC. This book was released on 1996 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the tradition of Silent Spring, Raoul Robinson's Return to Resistance calls for a revolution. Traditional plant breeding techniques have led us to depend more and more on chemical pesticides to protect ourcrops. Return to Resistance shows gardeners, farmers, and plant breeders how to use a long-neglected technique to create hardy new plant varieties that are naturally resistant to pests and disease. Horizontal resistance breeding has been largely ignored in this century due to the popularity and apparent successes of the Mendelian geneticists. However the colossal, unrecognized failure of m.

Download or read book Spanish Gardens and Patios written by Mildred Stapley Byne and published by . This book was released on 1924 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecology written by Charles J. Krebs and published by Benjamin-Cummings Publishing Company. This book was released on 2001 with total page 695 pages. Available in PDF, EPUB and Kindle. Book excerpt: This best-selling majors ecology book continues to present ecology as a series of problems for readers to critically analyze. No other text presents analytical, quantitative, and statistical ecological information in an equally accessible style. Reflecting the way ecologists actually practice, the book emphasizes the role of experiments in testing ecological ideas and discusses many contemporary and controversial problems related to distribution and abundance. Throughout the book, Krebs thoroughly explains the application of mathematical concepts in ecology while reinforcing these concepts with research references, examples, and interesting end-of-chapter review questions. Thoroughly updated with new examples and references, the book now features a new full-color design and is accompanied by an art CD-ROM for instructors. The field package also includes The Ecology Action Guide, a guide that encourages readers to be environmentally responsible citizens, and a subscription to The Ecology Place (www.ecologyplace.com), a web site and CD-ROM that enables users to become virtual field ecologists by performing experiments such as estimating the number of mice on an imaginary island or restoring prairie land in Iowa. For college instructors and students.

Download or read book Crop Protection in Medieval Agriculture written by Jan C. Zadoks and published by Sidestone Press. This book was released on 2013-10-16 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Common Forest Trees of Hawaii written by Elbert Little and published by Createspace Independent Publishing Platform. This book was released on 2016-09-24 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Common Forest Trees of Hawaii, first published in 1989 as USDA Forest Service Agriculture Handbook 679, is an illustrated reference for identifying the common trees in the forests of Hawaii. Useful information about each species is also compiled, including Hawaiian, English, and scientific names; description; distribution within the islands and beyond; uses of wood and other products; and additional notes. The 152 species described and illustrated by line drawings comprise 60 native species (including 53 that are endemic), 85 species introduced after the arrival of Europeans, and 7 species introduced apparently by the early Hawaiians. One chapter is devoted to forests and forestry in Hawaii. Maps of the Hawaiian Islands show the physical features and place names, major forest types, and forest reserves and conservation districts. Each tree species is illustrated by a full-page line drawing.

Download or read book Agroforestry in Sustainable Agricultural Systems written by Louise E. Buck and published by CRC Press. This book was released on 1998-12-28 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agroforestry in Sustainable Agricultural Systems examines the environmental and social conditions that affect the roles and performance of trees in field- and forest-based agricultural production systems. Various types of ecological settings for agroforestry are analyzed within temperate and tropical regions. The roles of soil, water, light, nutrient and pest management in mixed, annual, woody perennial and livestock systems are discussed. Important new case studies from around the world offer innovative strategies that have been used successfully in raising forests and tree products on a sustainable basis for commercial harvesting and for providing other environmental services in land conservation and watershed management.

Download or read book Diseases of Forest and Ornamental Trees written by D. H. Phillips and published by . This book was released on 1982 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Naslagwerk over ziekten (veroorzaakt door schimmels, bakterien en virussen) van belangrijke bomen voor bossen en parken in Engeland, met uitgebreide illustraties van symptomen

Download or read book Protected Landscapes and Agrobiodiversity Values written by Thora Amend and published by Kasparek Verlag. This book was released on 2008 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents twelve case studies from different parts of the world illustrating the role Protected Landscapes are playing in conserving agrobiodiversity and related knowledge and practices. This title includes a synthesis that focuses on the key lessons to be learned from these case studies

Download or read book Ecology written by Michael Begon and published by John Wiley & Sons. This book was released on 2020-11-17 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt: A definitive guide to the depth and breadth of the ecological sciences, revised and updated The revised and updated fifth edition of Ecology: From Individuals to Ecosystems – now in full colour – offers students and practitioners a review of the ecological sciences. The previous editions of this book earned the authors the prestigious ‘Exceptional Life-time Achievement Award’ of the British Ecological Society – the aim for the fifth edition is not only to maintain standards but indeed to enhance its coverage of Ecology. In the first edition, 34 years ago, it seemed acceptable for ecologists to hold a comfortable, objective, not to say aloof position, from which the ecological communities around us were simply material for which we sought a scientific understanding. Now, we must accept the immediacy of the many environmental problems that threaten us and the responsibility of ecologists to play their full part in addressing these problems. This fifth edition addresses this challenge, with several chapters devoted entirely to applied topics, and examples of how ecological principles have been applied to problems facing us highlighted throughout the remaining nineteen chapters. Nonetheless, the authors remain wedded to the belief that environmental action can only ever be as sound as the ecological principles on which it is based. Hence, while trying harder than ever to help improve preparedness for addressing the environmental problems of the years ahead, the book remains, in its essence, an exposition of the science of ecology. This new edition incorporates the results from more than a thousand recent studies into a fully up-to-date text. Written for students of ecology, researchers and practitioners, the fifth edition of Ecology: From Individuals to Ecosystems is anessential reference to all aspects of ecology and addresses environmental problems of the future.