Some Weeds of Iowa
Author : Louis Hermann Pammel
Publisher :
Page : 334 pages
File Size : 21,95 MB
Release : 1903
Category : Agricultural experiment stations
ISBN :
Author : Louis Hermann Pammel
Publisher :
Page : 334 pages
File Size : 21,95 MB
Release : 1903
Category : Agricultural experiment stations
ISBN :
Author : Louis Hermann Pammel
Publisher :
Page : 938 pages
File Size : 23,44 MB
Release : 1918
Category : Grasses
ISBN :
Author : Louis Hermann Pammel
Publisher :
Page : 318 pages
File Size : 24,79 MB
Release : 1911
Category : Weeds
ISBN :
Author : Iowa Academy of Science
Publisher :
Page : 300 pages
File Size : 50,24 MB
Release : 1912
Category : Science
ISBN :
List of members in each volume.
Author : Iowa Geological Survey
Publisher :
Page : 940 pages
File Size : 30,20 MB
Release : 1913
Category : Geology
ISBN :
Author : Louis Hermann Pammel
Publisher :
Page : 64 pages
File Size : 30,47 MB
Release : 1910
Category : Weeds
ISBN :
Author : Louis Hermann Pammel
Publisher :
Page : 938 pages
File Size : 16,29 MB
Release : 1913
Category : Botany
ISBN :
Author : Matt Liebman
Publisher : Cambridge University Press
Page : 546 pages
File Size : 34,15 MB
Release : 2001-07-19
Category : Science
ISBN : 1139427245
This book presents principles and practices for ecologically based weed management in a wide range of temperate and tropical farming systems. Special attention is given to the evolutionary challenges that weeds pose and the roles that farmers can play in the development of new weed-management strategies.
Author : Charles L. Mohler
Publisher :
Page : 400 pages
File Size : 21,4 MB
Release : 2021
Category : Weed control
ISBN : 9781888626209
Manage Weeds on Your Farm: A Guide to Ecological Strategies provides you with in-depth information about dozens of agricultural weeds found throughout the country and the best ways of managing them. In Part One, the book begins with a general discussion of weeds: their biology, behavior and the characteristics that influence how to best control their populations. It then describes the strengths and limitations of the most common cultural management practices, physical practices and cultivation tools. Part Two is a reference section that describes the identification, ecology and management of 63 of the most common and difficult-to-control weed species found in the United States.
Author : Robert L Zimdahl
Publisher : Elsevier
Page : 220 pages
File Size : 48,14 MB
Release : 2010-02-04
Category : Science
ISBN : 0123815029
It is important that scientists think about and know their history - where they came from, what they have accomplished, and how these may affect the future. Weed scientists, similar to scientists in many technological disciplines, have not sought historical reflection. The technological world asks for results and for progress. Achievement is important not, in general, the road that leads to achievement. What was new yesterday is routine today, and what is described as revolutionary today may be considered antiquated tomorrow. Weed science has been strongly influenced by technology developed by supporting industries, subsequently employed in research and, ultimately, used by farmers and crop growers. The science has focused on results and progress. Scientists have been--and the majority remain--problem solvers whose solutions have evolved as rapidly as have the new weed problems needing solutions. In a more formal sense, weed scientists have been adherents of the instrumental ideology of modern science. That is an analysis of their work, and their orientation reveals the strong emphasis on practical, useful knowledge; on know how. The opposite, and frequently complementary orientation, that has been missing from weed science is an emphasis on contemplative knowledge; that is, knowing why. This book expands on and analyzes how these orientations have affected weed science's development. - The first analytical history of weed science to be written - Compares the development of weed science, entomology and plant pathology - Identifies the primary founders of weed science and describes their role