Download or read book Report for 1879 1947 written by Botanical Society of the British Isles and published by . This book was released on 1919 with total page 914 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Horticulture written by and published by . This book was released on with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Natob written by Albert Watts Moore and published by . This book was released on 1952 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book History of Soybean Seedsmen and Seed Companies Worldwide 1854 2020 written by William Shurtleff; Akiko Aoyagi and published by Soyinfo Center. This book was released on 2020-10-18 with total page 1087 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world's most comprehensive, well documented, and well illustrated book on this subject. With extensive subject and geographic index. 162 photographs and illustrations - including many early seed catalog covers. Free of charge in digital PDF format.

Download or read book The Woody Plant Seed Manual written by United States. Forest Service and published by Forest Service. This book was released on 2008 with total page 1240 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Plant Analysis written by D Reuter and published by CSIRO PUBLISHING. This book was released on 1997 with total page 585 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant Analysis: An Interpretation Manual 2nd Edition is an easily accessible compilation of data summarising the range of nutrient concentration limits for crops, pastures, vegetables, fruit trees, vines, ornamentals and forest species. This information is valuable in assessing the effectiveness of fertiliser programs and for monitoring longer term changes in crop nutritional status. New to this edition: *Volume and scope of information accessed from the literature has expanded several-fold. Interpretation criteria for 294 species have been compiled in the tables from more than 1872 published papers. *New chapter on nutrient criteria for forest species. *Includes guidelines for collecting, handling and analysing plant material. An entire chapter is devoted to the identification of nutrient deficiency and toxicity symptoms.

Download or read book The Woody Plant Seed Manual Agriculture Handbook 727 July 2008 written by and published by . This book was released on 2009 with total page 1240 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of the Administrator of the Research and Marketing Act written by United States. Department of Agriculture. Office of Administrator of Research and Marketing Act and published by . This book was released on 1948 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Foreign matter Trap for Cotton Gins written by Charles F. Henderson and published by . This book was released on 1955 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt: And conclusions. pp. 21.

Download or read book The Collected Letters of Robinson Jeffers with Selected Letters of Una Jeffers written by James Karman and published by Stanford University Press. This book was released on 2015-07-15 with total page 1025 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume of correspondence, the last in a three-volume edition, spans a pivotal moment in American history: the mid-twentieth century, from the beginning of World War II, through the years of rebuilding and uneasy peace that followed, to the election of President John F. Kennedy. Robinson Jeffers published four important books during this period—Be Angry at the Sun (1941), Medea (1946), The Double Axe (1948), and Hungerfield (1954). He also faced changes to his hometown village of Carmel, experienced the rewards of being a successful dramatist in the United States and abroad, and endured the loss of his wife Una. Jeffers' letters, and those of Una written in the decade prior to her death, offer a vivid chronicle of the life and times of a singular and visionary poet.

Download or read book Chemical Consequences written by Scott Frickel and published by Rutgers University Press. This book was released on 2004 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hereis the first historical and sociological account of the formation of an interdisciplinary science known as genetic toxicology, and of the scientists' social movement that created it. After research geneticists discovered that synthetic chemicals were capable of changing the genetic structure of living organisms, scientists began to explore how these chemicals affected gene structure and function. In the late 1960s, a small group of biologists became concerned that chemical mutagens represented a serious and possibly global environmental threat. Genetic toxicology is nurtured as much by public culture as by professional practices, reflecting the interplay of genetics research and environmental politics. Drawing on a wealth of resources, Scott Frickel examines the creation of this field through the lens of social movement theory. He reveals how a committed group of scientist-activists transformed chemical mutagens into environmental problems, mobilized existing research networks, recruited scientists and politicians, secured financial resources, and developed new ways of acquiring knowledge. The result is a book that vividly illustrates how science and activism were interwoven to create a discipline that remains a defining feature of environmental health science.

Download or read book Bibliography of Agriculture written by and published by . This book was released on 1948 with total page 1124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biology of the Plant Bugs Hemiptera Miridae written by Alfred George Wheeler and published by Cornell University Press. This book was released on 2001 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant bugs--Miridae, the largest family of the Heteroptera, or true bugs--are globally important pests of crops such as alfalfa, apple, cocoa, cotton, sorghum, and tea. Some also are predators of crop pests and have been used successfully in biological control. Certain omnivorous plant bugs have been considered both harmful pests and beneficial natural enemies of pests on the same crop, depending on environmental conditions or the perspective of an observer.As high-yielding varieties that lack pest resistance are planted, mirids are likely to become even more important crop pests. They also threaten crops as insecticide resistance in the family increases, and as the spread of transgenic crops alters their populations. Predatory mirids are increasingly used as biocontrol agents, especially of greenhouse pests such as thrips and whiteflies. Mirids provide abundant opportunities for research on food webs, intraguild predation, and competition.Recent worldwide activity in mirid systematics and biology testifies to increasing interest in plant bugs. The first thorough review and synthesis of biological studies of mirids in more than 60 years, Biology of the Plant Bugs will serve as the basic reference for anyone studying these insects as pests, beneficial IPM predators, or as models for ecological research.

Download or read book Seed Trade Buyers Guide written by and published by . This book was released on 1991 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Robert Burns Woodward written by Otto Theodor Benfey and published by Chemical Heritage Foundation. This book was released on 2001 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: Robert Burns Woodward was the star of 20th-century organic chemistry. An MIT graduate by age 19, Woodward's ingenious notions about organic synthesis and his artful methodology were astounding. He is most famed for his synthesis of vitamin B12,which he undertook with Albert Eschenmoser, and for the orbital symmetry rules he developed with Roald Hoffmann. This volume presents Woodward's most celebrated papers and lectures--including the famous Cope lecture. Insightful commentaries and rarely seen photographs are also included.

Download or read book Plant Protection Quarterly written by and published by . This book was released on 1990 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Agronomy written by and published by Academic Press. This book was released on 1952-01-01 with total page 429 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Agronomy