Extension Ag Update
December 2008
Articles Research Resources Internet Links Ag Facts Education

Internet Links

eXtension: Organic Production
The eXtension website has added a new resource area on Organic Agriculture to its extensive online information offerings. This resource, created by the eOrganic Community of Practice, is designed for farmers, ranchers, agricultural professionals, certifiers, researchers and educators seeking reliable information on organic agriculture, published research results, farmer experiences, and certification. Current content is focused on general organic agriculture, dairy production, and vegetable production. The content is collaboratively authored and reviewed by a community of University researchers and Extension personnel, agricultural professionals, farmers, and certifiers with experience and expertise in organic agriculture. Site features include a calendar, news, expert answers to queries, and published resources on specific topics.

Nutrient Deficiencies and Application Injuries in Field Crops
John Sawyer, Department of Agronomy, Iowa State University
Numerous pictures and descriptions of deficiency symptoms and fertilizer applications injuries on corn, soybean, alfalfa and wheat.

Alberta Irrigation Energy Calculator
The Alberta Irrigation Energy Calculator was developed to enable irrigation producers to estimate and/or compare the cost of energy for irrigation operations. Comparisons can be made between electricity, natural gas, diesel and propane energy sources. User input is required for the crop grown, type of irrigation system, physical setup of irrigation system and the typical seasonal operation. Comparisons between energy sources is calculated and displayed in various forms, including: dollars per season, dollars per acre, dollars per inch of water applied and more.

Remote Pasture Water Systems for Livestock
No matter the size of a livestock watering system, proper planning and design play an important role in its effectiveness. Good installation cannot compensate for an inadequate water source. Good quality water and sufficient quantity are both vital to livestock. Dugout and off-stream livestock watering systems are an important tool in protecting water sources, riparian areas and livestock.

The Corn and Climate Report
The Great Plains Institute and the National Oceanic and Atmospheric Administration, Iowa State University, and the North Central Bioeconomy Consortium.  The report is a collection of essays transcribed from presentations given by climatologists at the 2008 ISU Biobased Industry Outlook Conference's Corn and Climate Post Conference Workshop. These essays combine basic climate science that underscores the reality of human-caused global warming with practical advice that farmers can use to help mitigate their greenhouse gas emissions, prepare for a cap and trade system, and adapt to the greenhouse gases already in the atmosphere.

Extending Grazing and Reducing Stored Feed Needs

Don Ball, Auburn University; Ed Ballard, retired from the University of Illinois; Mark Kennedy, Natural Resources Conservation Service in Missouri; Garry Lacefield, University of Kentucky, and Dan Undersander, University of Wisconsin

While the best techniques to reduce stored feed needs vary with geographic region, type of farming operation, and other factors, this publication outlines strategies that can be used to extend grazing and to increase profit.