Use of Honey Bees in Alfalfa Seed Production
Author: George Haymaker Vansell
Publisher:
Published: 1951
Total Pages: 12
ISBN-13:
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Author: George Haymaker Vansell
Publisher:
Published: 1951
Total Pages: 12
ISBN-13:
DOWNLOAD EBOOKAuthor: National Research Council
Publisher: National Academies Press
Published: 2007-05-13
Total Pages: 327
ISBN-13: 0309102898
DOWNLOAD EBOOKPollinators-insects, birds, bats, and other animals that carry pollen from the male to the female parts of flowers for plant reproduction-are an essential part of natural and agricultural ecosystems throughout North America. For example, most fruit, vegetable, and seed crops and some crops that provide fiber, drugs, and fuel depend on animals for pollination. This report provides evidence for the decline of some pollinator species in North America, including America's most important managed pollinator, the honey bee, as well as some butterflies, bats, and hummingbirds. For most managed and wild pollinator species, however, population trends have not been assessed because populations have not been monitored over time. In addition, for wild species with demonstrated declines, it is often difficult to determine the causes or consequences of their decline. This report outlines priorities for research and monitoring that are needed to improve information on the status of pollinators and establishes a framework for conservation and restoration of pollinator species and communities.
Author: Mace Vaughan
Publisher:
Published: 2007
Total Pages: 44
ISBN-13: 9780974447513
DOWNLOAD EBOOKAuthor: Samuel Emmett McGregor
Publisher:
Published: 1976
Total Pages: 428
ISBN-13:
DOWNLOAD EBOOKAuthor: United States. Agricultural Research Service
Publisher:
Published: 1971
Total Pages: 154
ISBN-13:
DOWNLOAD EBOOKAuthor: Rosalind R. James
Publisher: Oxford University Press
Published: 2008-09-09
Total Pages: 247
ISBN-13: 0195316959
DOWNLOAD EBOOKThis book discusses the interplay among bees, agriculture and the environment. Both managed and wild bees are critical for successful pollination of numerous fruit, vegetable, oilseed and legume seed crops and are considered here. So is treatment of how bees also impact the agro-ecosystem in ways beyond simple pollination, such as by transporting pollen from genetically modified plants and by enhancing biological control strategies. The principles and examples are international. The concept is in line with current thinking of pollination as an important ecological process, and an understanding of agriculture as disturbance ecology.
Author: Joseph S. Wilson
Publisher: Princeton University Press
Published: 2015-11-24
Total Pages: 288
ISBN-13: 0691160775
DOWNLOAD EBOOKAn introduction to the roughly 4000 different bee species found in the United States and Canada, dispelling common myths about bees while offering essential tips for telling them apart in the field
Author: Dharam P. Abrol
Publisher: Springer Science & Business Media
Published: 2011-10-05
Total Pages: 812
ISBN-13: 9400719426
DOWNLOAD EBOOKThis book has a wider approach not strictly focused on crop production compared to other books that are strictly oriented towards bees, but has a generalist approach to pollination biology. It also highlights relationships between introduced and wild pollinators and consequences of such introductions on communities of wild pollinating insects. The chapters on biochemical basis of plant-pollination interaction, pollination energetics, climate change and pollinators and pollinators as bioindicators of ecosystem functioning provide a base for future insights into pollination biology. The role of honeybees and wild bees on crop pollination, value of bee pollination, planned honeybee pollination, non-bee pollinators, safety of pollinators, pollination in cages, pollination for hybrid seed production, the problem of diseases, genetically modified plants and bees, the role of bees in improving food security and livelihoods, capacity building and awareness for pollinators are also discussed.
Author: Kenneth W. Richards
Publisher:
Published: 1984
Total Pages: 0
ISBN-13:
DOWNLOAD EBOOKAuthor: Andy Clark
Publisher: DIANE Publishing
Published: 2008-07
Total Pages: 248
ISBN-13: 1437903797
DOWNLOAD EBOOKCover crops slow erosion, improve soil, smother weeds, enhance nutrient and moisture availability, help control many pests and bring a host of other benefits to your farm. At the same time, they can reduce costs, increase profits and even create new sources of income. You¿ll reap dividends on your cover crop investments for years, since their benefits accumulate over the long term. This book will help you find which ones are right for you. Captures farmer and other research results from the past ten years. The authors verified the info. from the 2nd ed., added new results and updated farmer profiles and research data, and added 2 chap. Includes maps and charts, detailed narratives about individual cover crop species, and chap. about aspects of cover cropping.