Download or read book Derris Culture in Puerto Rico Classic Reprint written by Rufus H. Moore and published by Forgotten Books. This book was released on 2017-10-28 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Derris Culture in Puerto Rico The growing of Derris elliptica: in Puerto Rico is described and dis cussed with some reference to cultural methods used in the Far East. The Sarawak Creeping and Changi No. 3 varieties are commercially superior to other selections of derris that have been tested. Unshaded nurseries, described in detail, have proved a practical means of rooting cuttings on a large scale. The use of rooted cuttings reduces the amount of weeding required and assures a more uniform stand of plants in the field. Simple methods of transplanting rooted cuttings and applying fertilizer are presented. Little is known of the fertilizer requirements of derris. Propagating material of commercial Size is used most efficiently at a field Spacing of 3 by 3 feet, but weeding costs are reduced by closer Spacing. Large cuttings produce plants that cover the soil more quickly and yield more roots per acre than small cuttings. Trellising the vines increased the yield of roots 75 percent and the number of cuttings 300 percent over those not trellised, but the labor requirement for trellising may be correspondingly increased. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Derris Culture in Puerto Rico with List of Literature Cited written by and published by . This book was released on 1943 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Beyond the Melting Pot written by Nathan Glazer and published by Forgotten Books. This book was released on 2017-09-17 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Beyond the Melting Pot: The Negroes, Puerto Ricans, Jews, Italians, and Irish of New York City History, or perhaps historians, keep passing New York by. During the Civil War New York [state] pro vided the greatest number of soldiers, the greatest quantity of supplies, and the largest amount of money. In addition, New York's citizens paid the most taxes, bought the greatest number of war - bonds, and gave the most to relief organiza tions. 1 Yet it is recalled as a war between Yankees and Southerners. The Union preserved, the American mind roams westward with the cowboys, returning, if at all, to the Main Streets of the Midwest. The only New York image that has permanently impressed itself on the national mind is that of Wall Street - a street on which nobody lives. Paris may be France, London may be England, but New York, we continue to reassure ourselves, is not America. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book The Puerto Ricans Spirit written by María Teresa Babín and published by . This book was released on 1971 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book PUERTO RICO written by HOMER. PAGE and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book La Vida written by Oscar Lewis and published by . This book was released on 1968 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Puerto Rico written by Jose Luis Gonzalez and published by . This book was released on 2013-08-26 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this work, González dismantles the myth of a dominant Spanish and racially white national culture in Puerto Rican history. He claims that the national identity is primarily Mestizo (mixed race) with a significant contribution from Africa. González calls the African slaves and Mestizo peasantry the first Puerto Ricans because they were the first inhabitants who had to make the island their home. Having witnessed successful uprisings in neighboring Haiti, the Spanish authorities encouraged white immigrants to settle in Puerto Rico in an attempt to "whiten" the population, then thought to be tilting dangerously to the advantage of the Afro-Antilleans. These immigrants became the small but influential class of landowners and, later, urban professionals. According to the author's grand metaphor, Afro-Antilleans and Mestizos constitute the first "storey," or tier, of the "Puerto Rican house" of the title, landowners the second, urban professionals the third, and the managerial class the fourth.
Download or read book Recognition and Management of Pesticide Poisonings 5th Ed written by J. Routt Reigart and published by DIANE Publishing. This book was released on 2009-06 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 5th ed. is an update and expansion of the 1989 4th ed. This EPA manual provides health professionals with information on the health hazards of pesticides currently in use, and current consensus recommendations for management of poisonings and injuries caused by them. As with previous updates, this new ed. incorporates new pesticide products that are not necessarily widely known among health professionals. Contents: (1) General Information: Introduction; General Principles in the Management of Acute Pesticide Poisonings; Environmental and Occupational History; (2) Insecticides; (3) Herbicides; (4) Other Pesticides; (5) Index of Signs and Symptoms; Index of Pesticide Products. Charts and tables.
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 ASSESSMENT AND CONTROL OF BIOLOGICAL INVASION RISKS written by Fumito Koike and published by World Conservation Union. This book was released on 2006 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biological invasion, an issue of growing importance due to the significant increase in international transportation and trade, can disturb the balance of local ecosystems and even destroy them. This collection of papers presented at the International Conference on Assessment and Control of Biological Invasion Risks held in August 2004 at Yokohama National University discusses risk assessment, risk management and eradication. It also includes contributions reporting on the current status of invasion and the properties of alien species in East Asia.
Download or read book The Tropical Rain Forest written by Marius Jacobs and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, tropical forests have received more attention and have been the subject of greater environmental concern than any other kind of vegetation. There is an increasing public awareness of the importance of these forests, not only as a diminishing source of countless products used by mankind, nor for their effects on soil stabilization and climate, but as unrivalled sources of what today we call biodiversity. Threats to the continued existence of the forests represent threats to tens of thousands of species of organisms, both plants and animals. It is all the more surprising, therefore, that there have been no major scientific accounts published in recent years since the classic handbook by Paul W. Richards, The Tropical Rain Forest in 1952. Some excellent popular accounts of tropical rain forests have been published including Paul Richard's The Life of the Jungle, and Catherine Caulfield's In the Rainforest and Jungles, edited by Edward Ayensu. There have been numerous, often conflicting, assessments of the rate of conversion of tropical forests to other uses and explanations of the underlying causes, and in 1978 UNESCO/UNEPI FAO published a massive report, The Tropical Rain Forest, which, although full of useful information, is highly selective and does not fully survey the enormous diversity of the forests.
Download or read book The Cerrados of Brazil written by Paulo S. and published by Columbia University Press. This book was released on 2013-02-05 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: The massive grasslands of Brazil -- known as the cerrados -- which cover roughly a quarter of its land surface and are among the most threatened regions in South America, have received little media attention. This book brings together leading researchers on the area to produce the first detailed account in English of the natural history and ecology of the cerrado/savanna ecosystem. Given their extent and threatened status, the richness of their flora and fauna, and the lack of familiarity with their unique ecology at the international level, the cerrados are badly in need of this important and timely work.
Download or read book Field Manual Fm 3 05 70 Us Army Survival Guide written by U.s. Army and published by Createspace Independent Publishing Platform. This book was released on 2002-05-01 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt: FM 3-05.70 is the United States Army manual used to train survival techniques (formerly the FM 21-76). It is popular among survivalists and campers. The manual covers a variety of helpful topics such as planning, psychology of survival, emergency medicine, shelter construction, water procurement, firecraft, food procurement (hunting), identification of poisonous plants, and construction of field expedient weapons, tools and equipment.
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 Permaculture One written by Bill Mollison and published by . This book was released on 1990 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cash Crop Halophytes Recent Studies written by Helmut Lieth and published by Springer Science & Business Media. This book was released on 2003 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume follows up a seminal meeting, presenting reports on progress made with recommendations made there. The text reports on the development of pilot projects and on the organization of an international organization. All this will serve as the foundation for future efforts to develop the common utilisation of cash crop halophytes.
Download or read book Ethnobotany written by Barbara M. Schmidt and published by John Wiley & Sons. This book was released on 2017-09-25 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ethnobotany: A Phytochemical Perspective explores the chemistry behind hundreds of plant medicines, dyes, fibers, flavors, poisons, insect repellants, and many other uses of botanicals. Bridging the gap between ethnobotany and chemistry, this book presents an introduction to botany, ethnobotany, and phytochemistry to clearly join these fields of study and highlight their importance in the discovery of botanical uses in modern industry and research. Part I. Ethnobotany, explores the history of plant exploration, current issues such as conservation and intellectual property rights, and a review of plant anatomy. An extensive section on plant taxonomy highlights particularly influential and economically important plants from across the plant kingdom. Part II. Phytochemistry, provides fundamentals of secondary metabolism, includes line drawings of biosynthetic pathways and chemical structures, and describes traditional and modern methods of plant extraction and analysis. The last section is devoted to the history of native plants and people and case studies on plants that changed the course of human history from five geographical regions: Africa, the Americas, Asia, Europe, and Ocean. Throughout the entire book, vivid color photographs bring science to life, capturing the essence of human botanical knowledge and the beauty of the plant kingdom.
