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Full-Text Articles in Life Sciences

Resource Conservation Practices: Manure And Tillage Management, Mahdi Al-Kaisi, H. Mark Hanna, Mark A. Licht Dec 2004

Resource Conservation Practices: Manure And Tillage Management, Mahdi Al-Kaisi, H. Mark Hanna, Mark A. Licht

Agriculture and Environment Extension Publications

Adopting best management practices throughout an operation must take into consideration both manure application and tillage management.


Method Of Measuring Flow Rate Of Flowable Material Under Continuous Flow Conditions, And An In-Line Continuous Flow Meter, Yuh Yuan Shyy, Manjit K. Misra Oct 2004

Method Of Measuring Flow Rate Of Flowable Material Under Continuous Flow Conditions, And An In-Line Continuous Flow Meter, Yuh Yuan Shyy, Manjit K. Misra

Iowa State University Patents

A method of determining the rate of flow of a flowable material, particulate or liquid, through a flowable material passageway, comprising causing the material passing through the passageway to move downwardly by gravity slowing the downward movement of material as compared to free falling gravitational movement measuring the weight of material passing slowly downwardly with respect to the passageway; causing an electronic signal to be generated in response to the magnitude of the weight measuring; and connecting the electronic signal to a read out display to reflect the flow rate of material with respect to units of weight with respect ...


Residue Management After Harvest, Mahdi Al-Kaisi, H. Mark Hanna, Michael Tidman Oct 2004

Residue Management After Harvest, Mahdi Al-Kaisi, H. Mark Hanna, Michael Tidman

Integrated Crop Management News

As we are in the harvest season, producers are searching for the best way to manage their residue cover, particularly with corn. Some farmers manage their residue by chopping, bailing, or grazing in livestock operations. But before planning to use any of these options or others, and reducing corn residue cover after this year's harvest, one of the first things to plan for is the remaining crop residue coverage. With that in mind, producers need to ask themselves a series of questions.


Video Companion: Rhythm Of The Seasons... A Journey Beyond Loss, Charles V. Schwab, Shari Burgus, Colleen Jolly Oct 2004

Video Companion: Rhythm Of The Seasons... A Journey Beyond Loss, Charles V. Schwab, Shari Burgus, Colleen Jolly

Agriculture and Environment Extension Publications

Viewer guide, with four activities, to increase personal and community action to prevent farm injuries.

To order the video, see: http://ifasbooks.ufl.edu Search for "Rhythm of the Seasons."


The Role Of Pasture In Conservation Management, Mahdi Al-Kaisi, H. Mark Hanna, Michael Tidman Aug 2004

The Role Of Pasture In Conservation Management, Mahdi Al-Kaisi, H. Mark Hanna, Michael Tidman

Integrated Crop Management News

Pasture is a longtime and significant part of Iowa agriculture and is a critical component of the state's agricultural landscape. The main function of pasture is as a primary support system for livestock. It can affect conservation and the environmental planning in several ways, including soil carbon storage, soil quality, and water quality. The effect of livestock on such parameters is highly significant depending on the way livestock and pasture are managed. Therefore, pasture management does play an important role in a farming operation's overall conservation management plan.


Drainage Water Management For The Midwest, Jane Frankenberger, Eileen Kladivko, Gary Sands, Dan B. Jaynes, Norm Fausey, Matthew J. Helmers, Richard Cooke, Jeff Strock, Kelly Nelson, Larry C. Brown Aug 2004

Drainage Water Management For The Midwest, Jane Frankenberger, Eileen Kladivko, Gary Sands, Dan B. Jaynes, Norm Fausey, Matthew J. Helmers, Richard Cooke, Jeff Strock, Kelly Nelson, Larry C. Brown

Agricultural and Biosystems Engineering Extension and Outreach Publications

No abstract provided.


Calibrating Liquid Tank Manure Applicators, Kapil Arora, Mark A. Licht, Kris Kohl, Joel L. Dejong Jul 2004

Calibrating Liquid Tank Manure Applicators, Kapil Arora, Mark A. Licht, Kris Kohl, Joel L. Dejong

Agriculture and Environment Extension Publications

Why and how to calibrate liquid tank manure applicaors is discussed. A comprehensive worksheet is provided.


Conservation Buffers Can Improve Water Quality, Mahdi Al-Kaisi, H. Mark Hanna, Michael Tidman Jun 2004

Conservation Buffers Can Improve Water Quality, Mahdi Al-Kaisi, H. Mark Hanna, Michael Tidman

Integrated Crop Management News

Conservation buffers are areas or strips of land where permanent vegetation is established in and around row crop fields to protect environmentally sensitive areas such as streams and tributaries; thus, these buffers are important for improving water quality.


Spring Rain And Soil Erosion, Mahdi Al-Kaisi, H. Mark Hanna, Mark A. Licht Jun 2004

Spring Rain And Soil Erosion, Mahdi Al-Kaisi, H. Mark Hanna, Mark A. Licht

Integrated Crop Management News

Spring rains can come hard and fast as we experienced last week, causing substantial soil erosion when soils are most vulnerable because of degraded crop residue cover, soil preparation by tillage, and no crop canopy. The soil profiles in most of Iowa are now filled to capacity with water. The profiles are at or near saturation. Therefore, the intensity and amount of rain we received have exceeded the soil capacity to filter water and minimize surface runoff even in fields with the most adequate conservation practices.


Crop-Specific Cultivating Tillage, Mahdi Al-Kaisi, H. Mark Hanna, Michael Tidman May 2004

Crop-Specific Cultivating Tillage, Mahdi Al-Kaisi, H. Mark Hanna, Michael Tidman

Integrated Crop Management News

Now that the seed is in the ground for many producers, it's time to turn to the issues of row-crop cultivation and rotary hoeing, and the impact that both can have on soil erosion, productivity, and profitability.


Safe Farm: 2003 Iowa Farm Injury And Fatality Data By County, Charles V. Schwab May 2004

Safe Farm: 2003 Iowa Farm Injury And Fatality Data By County, Charles V. Schwab

Agriculture and Environment Extension Publications

Injuries are listed as serious or not serious. Total injuries and fatalities are listed. This data cannot be compared with data collected during 2000 or earlier because of different reporting systems used.


Safe Farm: 2002 Iowa Farm Injury And Fatality Data By County, Charles V. Schwab May 2004

Safe Farm: 2002 Iowa Farm Injury And Fatality Data By County, Charles V. Schwab

Agriculture and Environment Extension Publications

Injuries are listed as serious or not serious. Total injuries and fatalities are listed. This data cannot be compared with data collected during 2000 or earlier because of different reporting systems used.


Tillage Implement Design And Its Effect On Soil, Mahdi Al-Kaisi, H. Mark Hanna, Michael Tidman Apr 2004

Tillage Implement Design And Its Effect On Soil, Mahdi Al-Kaisi, H. Mark Hanna, Michael Tidman

Integrated Crop Management News

The weather is gradually improving and most Iowa producers are getting closer to working in the field. Some have already started fieldwork. However, there is still time to finalize preparation of tillage implements for spring fieldwork. Producers are encouraged to check and evaluate the design of soil-engaging components of their tillage implements, assess the potential for soil erosion, and think about their chances for a successful crop.


Site-Specific Tillage Choices Management, Mahdi Al-Kaisi, H. Mark Hanna, Michael Tidman Mar 2004

Site-Specific Tillage Choices Management, Mahdi Al-Kaisi, H. Mark Hanna, Michael Tidman

Integrated Crop Management News

Before making tillage choices in the field, producers should consider their overall approach to tillage management. If the goal is a conservation tillage program with at least 30 percent of the previous year's crop residue cover after planting, then options of no-till, strip-till, ridge-till, and minimum tillage are effective. However, every choice requires considerations well in advance of going to the field. Once a producer has made a management commitment to implement a new tillage system, several steps should be taken to achieve maximum results, including those related to equipment and attachments needed, weather and soil conditions, and tillage ...


Spring Tillage Preparation, Mahdi Al-Kaisi, H. Mark Hanna, Michael Tidman Feb 2004

Spring Tillage Preparation, Mahdi Al-Kaisi, H. Mark Hanna, Michael Tidman

Integrated Crop Management News

Every spring presents new challenges for producers in assessing and working with field and soil conditions. As of today, the only thing about the 2004 growing season we know for sure is that, at some point in time, producers will have to decide whether or not to go to the field for spring tillage. The key issue is knowing when tillage is warranted versus when it would be best to resist the tillage impulse.


Carbon Credits And Conservation Practices, Mahdi Al-Kaisi, H. Mark Hanna, Michael Tidman Jan 2004

Carbon Credits And Conservation Practices, Mahdi Al-Kaisi, H. Mark Hanna, Michael Tidman

Integrated Crop Management News

Carbon and the 'carbon cycle'. Over the past century, CO2 levels have risen significantly. There is considerable debate about the reasons -- whether it's a natural cycle or the result of increased CO2 emissions due to human activities-- but there is general agreement that human activity accounts for part of the increase, especially in view of the continuing increase of CO2 levels following the on-set of the industrial age. There is a great amount of research regarding the benefits of organic matter or soil carbon in improving soil quality and the sustainability of balanced agriculture productivity.


Environmental Impact And Biosecurity Of Composting For Emergency Disposal Of Livestock Mortalities — Year 2 Project Update, Thomas D. Glanville, Jay D. Harmon, Thomas L. Richard, Donald L. Reynolds, Heekwon Ahn Jan 2004

Environmental Impact And Biosecurity Of Composting For Emergency Disposal Of Livestock Mortalities — Year 2 Project Update, Thomas D. Glanville, Jay D. Harmon, Thomas L. Richard, Donald L. Reynolds, Heekwon Ahn

Iowa State Research Farm Progress Reports

Following the foot-and-mouth disease epidemic in Great Britain in 2001, the Iowa Department of Natural Resources asked researchers at Iowa State University to evaluate the potential effectiveness (rate and extent of decay), environmental impacts (air, soil, and water quality), and biosecurity (containment and inactivation of viral pathogens) of using on-farm composting for emergency disposal of beef or dairy cattle carcasses in the event of a disease outbreak in the State of Iowa.


Understanding The Potential Of Phosphorus Transport To Water Resources Via Leaching, James L. Baker, Antonio P. Mallarino, Stewart W. Melvin Jan 2004

Understanding The Potential Of Phosphorus Transport To Water Resources Via Leaching, James L. Baker, Antonio P. Mallarino, Stewart W. Melvin

Leopold Center Completed Grant Reports

Improved management of phosphorus (P) from both manure and fertilizer sources is important because of surface water quality concerns. This study considers possible P loss via leaching through the soil and examines the dynamics of the adsorption/extraction process.


Impact Of Swine Manure Applications On Nitrate And Phosphorus In Subsurface Drainage Water, Rameshwar S. Kanwar, James L. Baker, Carl H. Pederson, Antonio P. Mallarino, John E. Sawyer, Kenneth T. Pecinovsky Jan 2004

Impact Of Swine Manure Applications On Nitrate And Phosphorus In Subsurface Drainage Water, Rameshwar S. Kanwar, James L. Baker, Carl H. Pederson, Antonio P. Mallarino, John E. Sawyer, Kenneth T. Pecinovsky

Iowa State Research Farm Progress Reports

Nonpoint source nutrient pollution related to land application of manures is recognized as an important environmental and social issue for several reasons. First, manure from swine production facilities can have serious impacts on the quality of ground water resources. Second, several states are in the process of creating laws and/or regulations to reduce nitrogen (N) and phosphorus (P) loadings from manure to soil and water resources. Third, pollution of water resources from nutrients supplied by manure to croplands will help set parameters for developing public policies on the management of manure.


Developing And Implementing A Composting/Vegetative Filter Strip Demonstration Site At The Isu Dairy Teaching Farm, David F. Webber, Steven K. Mickelson, Thomas L. Richard, Heekwon Ahn Jan 2004

Developing And Implementing A Composting/Vegetative Filter Strip Demonstration Site At The Isu Dairy Teaching Farm, David F. Webber, Steven K. Mickelson, Thomas L. Richard, Heekwon Ahn

Iowa State Research Farm Progress Reports

Composting is often the preferred technology for solid manure management. Composting reduces odor, stabilizes nutrients, and generates an easily stored product. While the benefits of composting are well documented, little is known about the water quality impacts at composting sites. This project established a demonstration site at the ISU Dairy Farm, Ames, Iowa, to explore these impacts.


Environmental Impacts Of Use Of Poultry Manure On Water Quality, Rameshwar S. Kanwar, Jeffery C. Lorimor, Hongwei Xin Jan 2004

Environmental Impacts Of Use Of Poultry Manure On Water Quality, Rameshwar S. Kanwar, Jeffery C. Lorimor, Hongwei Xin

Leopold Center Completed Grant Reports

The significant expansion of the U.S. poultry industry has led to questions about the effects of large amounts of poultry manure on the surface and groundwater. These are the final year's results of a field study on how poultry manure application can affect water supplies.


Agronomic And Environmental Soil Testing For Phosphorus And Threshold Levels In Soils, Antonio P. Mallarino, James L. Baker, Jeffery C. Lorimor, Rameshwar S. Kanwar Jan 2004

Agronomic And Environmental Soil Testing For Phosphorus And Threshold Levels In Soils, Antonio P. Mallarino, James L. Baker, Jeffery C. Lorimor, Rameshwar S. Kanwar

Leopold Center Completed Grant Reports

Greater knowledge of soil phosphorus (P) is needed to develop application recommendations for Iowa farmers. This project provides more data on the topic by addressing both agronomic and water quality issues.


Optimizing Solid Manure Application By Improving Distribution, H. Mark Hanna, Thomas L. Richard, Graeme R. Quick Jan 2004

Optimizing Solid Manure Application By Improving Distribution, H. Mark Hanna, Thomas L. Richard, Graeme R. Quick

Leopold Center Completed Grant Reports

Improving the uniformity of manure distribution may make it a more effective substitute for commercial fertilizer and allow farmers to take proper nutrient credit for the manure. Manure-spreading equipment or application techniques may need to be modified to be more efficient.