Life Sciences Commons^™

Productivity Of Well-Watered Panicum Virgatum Does Not Increase With Co2 Enrichment, Philip A. Fay, H. Wayne Polley, Virginia L. Jin, Michael J. Aspinwall

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Aims Rising atmospheric CO₂ has been shown to increase aboveground net primary productivity (ANPP) in water-limited perennial grasslands, in part by reducing stomatal conductance and transpiration, thereby reducing depletion of soil moisture. However, the benefits of CO₂ enrichment for ANPP will vary with soil type and may be reduced if water limitation is low. Little is known about CO₂ effects on ANPP of Panicum virgatum, a perennial C₄ tallgrass and potential bioenergy crop. We hypothesized that if water limitation is minimized, (i) CO₂ enrichmentwould not increase P. virgatum ANPP because photosynthetic rates of this C …

Agricultural Production Economics, David L. Debertin

Agricultural Economics Textbook Gallery

Agricultural Production Economics (Second Edition, Amazon Createspace 2012) is a revised edition of the textbook Agricultural Production Economics published by Macmillan in 1986 (ISBN 0-02-328060-3). This is a free pdf download of the entire book. As the author, I own the copyright. Amazon markets bound print copies of the book at amazon.com at a nominal price for classroom use. The book can also be ordered through college bookstores using the following ISBN numbers:

• ISBN-13 978-1469960647
• ISBN-10 1469960648

The format and coverage remains similar to the first edition, many small revisions and updates have been made. All graphs have been redrawn …

Agricultural Production Economics: The Art Of Production Theory, David L. Debertin

Agricultural Economics Textbook Gallery

Agricultural Production Economics: The Art of Production Theory is a companion book of color illustrations to Agricultural Production Economics (Second Edition, Amazon Createspace 2012) and is a free download. A bound print copy is also available on amazon.com at a nominal cost under the following ISBN numbers:

• ISBN- 13: 978-1470129262
• ISBN- 10: 1470129264

This is a book of full-color illustrations intended for use as a companion to Agricultural Production Economics, Second Edition. Each of the 98 pages of illustrations is a large, full-color version of the corresponding numbered figure in the book Agricultural Production Economics. The illustrations are …