Ebook Free Crop Ecology: Productivity and Management in Agricultural Systems, by David J. Connor, Robert S. Loomis, Kenneth G. Cassman
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Crop Ecology: Productivity and Management in Agricultural Systems, by David J. Connor, Robert S. Loomis, Kenneth G. Cassman
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Food security and environmental conservation are two of the greatest challenges facing the world today. It is predicted that food production must increase by at least 70% before 2050 to support continued population growth, though the size of the world's agricultural area will remain essentially unchanged. This updated and thoroughly revised second edition provides in-depth coverage of the impact of environmental conditions and management on crops, resource requirements for productivity and effects on soil resources. The approach is explanatory and integrative, with a firm basis in environmental physics, soils, physiology and morphology. System concepts are explored in detail throughout the book, giving emphasis to quantitative approaches, management strategies and tactics employed by farmers, and associated environmental issues. Drawing on key examples and highlighting the role of science, technology and economic conditions in determining management strategies, this book is suitable for agriculturalists, ecologists and environmental scientists.
- Sales Rank: #175110 in Books
- Brand: Brand: Cambridge University Press
- Published on: 2011-08-22
- Released on: 2011-04-28
- Original language: English
- Number of items: 1
- Dimensions: 9.72" h x 1.18" w x 6.85" l, 2.45 pounds
- Binding: Paperback
- 576 pages
- Used Book in Good Condition
Review
"The new edition of Crop Ecology, by Connor, Loomis, and Cassman, retains the strengths of the earlier edition, namely, insightful analysis of the key principles that explain crop resource use and growth, based on extensive use of peer-reviewed data, averaging more than one graph or table per page. Any practitioner or student of "evidence-based agriculture" needs a copy of this book."
R. Ford Denison, University of Minnesota, author of Darwinian Agriculture
"This book arrives as a timely update of a foundational text for college or graduate curricula providing comprehensive treatment of ecological principles and concepts central to achieving global food security and to conducting the environmental accounting critical to sustaining productivity through judicious natural resource management. Likewise, it is an essential desk reference for practicing systems agronomists, agro-ecologists, and agricultural economists and biological engineers pursuing biophysical life cycle analyses. With a predominant focus on staple crop systems, authors Conner, Loomis, and Cassman present key biophysical mechanisms and processes with detailed explanations of the quantitative approaches to their estimation; in-depth examples and case studies facilitate comprehension. Important new sections include ideotype concepts in respiration and partitioning, spatial variability in soil management, energy and labor requirements for bioenergy crops, and irrigation and world food supply. This book is remarkably easy to read and will be accessible to a range of knowledge levels and backgrounds."
Sylvie M. Brouder, Purdue University
"This reviewer has not seen a better book for illustrating the limits to crop production due to environmental constraints. The authors have a clear bias for conventional agricultural systems, but they are fair in representing the position of other approaches to cropping and describing the limits to those systems. Although the mathematical descriptions can be tedious for lower-division undergraduates, overall, the text is readily accessible for a wide readership in agricultural science. Highly recommended."
M.S. Coyne, Choice Magazine
About the Author
D. J. Connor is Emeritus Professor of Agriculture at the University of Melbourne. His research programs deal with land and environmental relationships of a range of irrigated and rain fed cropping systems. In 2003 he was awarded the Donald Medal for outstanding contributions by the Australian Society of Agronomy.
R. S. Loomis is Emeritus Professor in the Department of Plant and Environmental Sciences at the University of California, Davis. His research interests include photosynthetic productivity, nutrient and water management, and integrated simulation models.
K. G. Cassman is Professor of Agronomy at the University of Nebraska. His research focuses on nutrient cycling and crop nutrient requirements, crop yield potential and water productivity of irrigated crops. In 2006 he received the Agronomic Research Award from the American Society of Agronomy.
Most helpful customer reviews
2 of 2 people found the following review helpful.
A serious book with lots of data and some math
By Robert F. Denison
This isn't "Agriculture for Dummies", but is the text really "all equations" as another reviewer claimed? I sampled every 50 pages in the first printing.
p. 50: Text, plus graphs showing how crop growth rate increases with light interception by leaves. I have found it really useful to look down on a crop from above. If I can see a lot of soil, than lots of sunlight is being wasted, evaporating water from the soil rather than driving photosynthesis and growth.
p. 100: Text plus a graph showing daylength as a function of date and latitude. Very useful for crops whose flowering depends on daylength. The caption mentions that the equations used are available on another page.
p. 150: Text on climate and weather, including principles of frost protection. No graphs or equations.
p. 200: Finally an equation. This one tells how fast soil organic matter breaks down. This seems worthwhile, especially if you're adding crop residues or manure to soil, and it's not very complicated.
p. 250: Text plus a graph showing crop water use as a function of leaf area. Very useful, especially if you irrigate. Even if you don't it's helpful in deciding how densely to plant your crop and in figuring out whether a rainfed crop is likely to run out of water.
p. 300: Text plus a table giving the composition of various crops (% protein, etc.) and explaining how crop composition affects growth rate from a given amount of photosynthate. Essential information for plant breeders, or anyone who wants to understand why higher-protein crops tend to have lower yields.
OK, you get the idea.
0 of 0 people found the following review helpful.
Five Stars
By James D Ferguson
excellent book
0 of 3 people found the following review helpful.
Too much B.S.
By Derek Z.
This book was of little value to me. I thought it would be more useful and practical. Instead its all equations and mathmatical formulas. Its not understandable at all. Guess I'd need a couple doctorate degrees to get anything out of it.
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