Download or read book Biology and ecology of weeds written by W. Holzner and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: Weeds are a fascinating study for specialists, not only because of their economic importance, but also since in this case biology must be combined with history and agriculture (and its economic aspects). Thus, weed scientists may be concerned with pure basic research, concentrating on general aspects, or with applied science, i.e. having a practical orientation. One of the aims of this book is to create a synthesis between these two branches of study and to review the literature of both fields. The agrestals, the weeds of arable land ~ the most important group from an economic point of view ~ was chasen as the main topic. Other weed groups could only be mentioned briefly (e.g. grassland weeds), or superficially (e.g. aquatic weeds), or had to be omitted completely (e.g. ruderals, because they are so heterogeneous), to keep this volume to an acceptable size and price. Nevertheless, nearly all subsections of botanical science have been treated.
Download or read book A Handbook of Roumania written by Great Britain. Admiralty and published by . This book was released on 1920 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Abstracts of Romanian Scientific and Technical Literature written by and published by . This book was released on with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Handbook of Roumania written by Great Britain. Naval Intelligence Division and published by . This book was released on 1918 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Service Research Paper SO written by and published by . This book was released on 1974 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1972 with total page 876 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sind University Research Journal written by and published by . This book was released on 1985 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biotic Diversity in Agroecosystems written by D. Pimentel and published by Elsevier. This book was released on 2012-12-02 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: The preservation of biodiversity is a high priority among biologists, ecologists and environmentalists. The impact that human activities have on biodiversity is clear; however, few studies have focused on the importance of biodiversity to natural and agricultural ecosystems. In fact, many natural species are essential to sustainable agricultural programs. A new school of thought is appreciating the ecological principles and benefits that diversity of natural biota have for humans and the environment. Landscape ecology and agroecology can play a major role in protecting the environment and conserving biological diversity. The practical opportunities for improving the sustainability of agriculture and making it more environmentally sound were discussed at the Symposium on Agroecology and Conservation Issues, from which 22 papers were collected for this volume. Strategies for increasing biodiversity in agricultural landscapes are provided alongside discussion that agriculture will continue to spread into forests, to meet the growing need for food. Although humans recognize the value of crop and livestock species, few really appreciate the fact that agriculture and forestry cannot function in a productive sustainable way when significant numbers of species in natural biota are lost.
Download or read book Agricultural Regions of Europe written by Olaf Georg Jonasson and published by . This book was released on 1926 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Columbia Gazetteer of the World A to G written by Saul Bernard Cohen and published by Columbia University Press. This book was released on 2008 with total page 4454 pages. Available in PDF, EPUB and Kindle. Book excerpt: A geographical encyclopedia of world place names contains alphabetized entries with detailed statistics on location, name pronunciation, topography, history, and economic and cultural points of interest.
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1975 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Romania Economic and Social Geography written by Ion Velcea and published by Bucharest : Meridiane. This book was released on 1976 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture with Subject Index written by and published by . This book was released on 1961 with total page 1516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report Upon the Commercial Relations of the United States with Foreign Countries written by United States. Bureau of Foreign and Domestic Commerce and published by . This book was released on 1909 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rumania in 1900 written by Gottlieb Benger and published by . This book was released on 1900 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
