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On-Farm Soybean Row Spacing Trials, Jim Fawcett, Josh Sievers, Lyle Rossiter, Jim Rogers Jan 2015

On-Farm Soybean Row Spacing Trials, Jim Fawcett, Josh Sievers, Lyle Rossiter, Jim Rogers

Iowa State Research Farm Progress Reports

Most past research has shown a yield benefit to planting soybeans in rows more narrow than 30-in. However, narrow rows occasionally can result in more soybean disease problems, such as white mold, which can result in higher yields with wider rows. Yield differences between wide and narrow rows often vary from year-to-year and field to-field.


Long-Term Tillage And Crop Rotation Effect On Yield And Soil Carbon, Mahdi Al-Kaisi, David Kwaw-Mensah Jan 2015

Long-Term Tillage And Crop Rotation Effect On Yield And Soil Carbon, Mahdi Al-Kaisi, David Kwaw-Mensah

Iowa State Research Farm Progress Reports

Tillage systems and crop rotation have a significant, long-term effect on soil productivity and the soil quality components of soil carbon and other soil physical, biological, and chemical properties. Additionally, soil tillage and crop rotation control weed and soilborne diseases. There is need for a well-defined, long-term tillage and crop rotation study across the different soils and climate conditions in the state. The objective of this study was to evaluate the long-term effects of different tillage systems and crop rotation on soil productivity and quality.


Update: Isu Farm Network, Wayne Roush Jan 2015

Update: Isu Farm Network, Wayne Roush

Iowa State Research Farm Progress Reports

Since its inception in 1946, Iowa State University’s (ISU) Western Research Farm (WRF) has fulfilled its original stated objective of “careful research giving definite answers to specific problems.” In continuing with that tradition, the WRF joined the Onfarm Research Network of the ISU Corn and Soybean Initiative (CSI) and started conducting on-farm trials with participating local producers during the 2010 growing season.


Impact Of Drainage Water Management On Crop Yield, Drainage Volume, And Nitrate Loss, Linda Schott, Matt Helmers, Carl Pederson, Greg Brenneman, Myron Rees Jan 2015

Impact Of Drainage Water Management On Crop Yield, Drainage Volume, And Nitrate Loss, Linda Schott, Matt Helmers, Carl Pederson, Greg Brenneman, Myron Rees

Iowa State Research Farm Progress Reports

The objectives of this study were to determine the impact of shallow, controlled, conventional, and no drainage on crop yields, subsurface drainage volumes, and nitrate loss through subsurface drainage. This research investigates whether drainage water management reduces nitrate loadings to downstream surface waters.


Northwest And Allee Farm Summaries, Josh Sievers, Lyle Rossiter Jan 2015

Northwest And Allee Farm Summaries, Josh Sievers, Lyle Rossiter

Iowa State Research Farm Progress Reports

Contains "Northwest Research Farm Summary" and "Allee Research Farm Summary"


On-Farm Soybean Row Spacing Trials, Jim Fawcett, Josh Sievers, Lyle Rossiter, Jim Rogers Jan 2015

On-Farm Soybean Row Spacing Trials, Jim Fawcett, Josh Sievers, Lyle Rossiter, Jim Rogers

Iowa State Research Farm Progress Reports

Most past research has shown a yield benefit to planting soybeans in rows more narrow than 30-in. However, narrow rows occasionally can result in more soybean disease problems, such as white mold, which can result in higher yields with wider rows. Yield differences between wide and narrow rows often vary from year-to-year and fieldto-field.


Western Research Farm Summary, Wayne Roush Jan 2015

Western Research Farm Summary, Wayne Roush

Iowa State Research Farm Progress Reports

Contains the Farm Summary for the Western Research and Demonstration Farm.


Evaluation Of Foliar Fungicides And Insecticides On Soybeans In Northeast Iowa, Daren Mueller, Stith Wiggs, Warren Pierson Jan 2015

Evaluation Of Foliar Fungicides And Insecticides On Soybeans In Northeast Iowa, Daren Mueller, Stith Wiggs, Warren Pierson

Iowa State Research Farm Progress Reports

Researchers at Iowa State University assessed fungicide and insecticide applications to soybeans at seven locations across Iowa including the Northwest Farm (Sutherland), Northern Farm (Kanawha), Northeast Farm (Nashua), Agronomy Farm (Boone), Armstrong Farm (Lewis), McNay Farm (Chariton), and Southeast Farm (Crawfordsville) (Figure 1).


Evaluation Of Herbicide Programs For Liberty Link Sweet Corn Hybrids, Vince Lawson Jan 2015

Evaluation Of Herbicide Programs For Liberty Link Sweet Corn Hybrids, Vince Lawson

Iowa State Research Farm Progress Reports

The recent introduction and availability of Liberty Link sweet corn hybrids provides growers with new options for postemergence weed control. The Liberty Link technology utilizes specially developed hybrids that are tolerant to Liberty 280 SL (glufosinate), a foliar applied, broad-spectrum herbicide with no residual control. The objective of this study was to evaluate and identify the best strategies for using Liberty 280 SL in a sweet corn weed management program.


On-Farm Soybean Seed Treatment Trials, Jim Fawcett, Zack Koopman, Lance Miller, Wayne Roush, Josh Sievers Jan 2015

On-Farm Soybean Seed Treatment Trials, Jim Fawcett, Zack Koopman, Lance Miller, Wayne Roush, Josh Sievers

Iowa State Research Farm Progress Reports

Seed treatments offer protection from fungi, insects, and nematodes to germinating seeds and developing seedlings. All legumes require the appropriate rhizobium bacteria in the soil in order for nitrogen fixation to occur. Inoculating the seed with an inoculum can insure the crop can take advantage of this nitrogen fixation.


Evaluation Of Commercial Varieties In The Northern United States–Soybean Sudden Death Syndrome Commercial Variety Test, Silvia Cianzio, Peter Lundeen, Ryan Budnik, Greg Gebhart Jan 2015

Evaluation Of Commercial Varieties In The Northern United States–Soybean Sudden Death Syndrome Commercial Variety Test, Silvia Cianzio, Peter Lundeen, Ryan Budnik, Greg Gebhart

Iowa State Research Farm Progress Reports

Soybean sudden death syndrome (SDS) is a fungal disease causing foliar necrosis and early leaf drop. SDS can be a significant factor in soybean yield loss and has been found in fields across Iowa. The fungus is a good saprophyte and can grow well on plant debris in the field. The disease often is worse following corn. Although there is no complete resistance to SDS available in soybean, disease resistance is an important part of SDS disease management.


On-Farm Soybean Fungicide Trials, Jim Fawcett, Lance Miller, Lyle Rossiter, Wayne Roush, Josh Sievers, Micah Smidt, Matt Schnabel Jan 2015

On-Farm Soybean Fungicide Trials, Jim Fawcett, Lance Miller, Lyle Rossiter, Wayne Roush, Josh Sievers, Micah Smidt, Matt Schnabel

Iowa State Research Farm Progress Reports

Fungicide applications have become more popular among soybean farmers in recent years. The primary use of fungicides has been to control diseases such as Septoria brown spot, Cercospora leaf blight, and frogeye leaf spot. With lower grain prices, the chances of getting an economic benefit from fungicide applications have decreased.


Evaluation Of Application Rates Of Fungicides On Soybean Diseases And Yield, Shrishal Navi Jan 2015

Evaluation Of Application Rates Of Fungicides On Soybean Diseases And Yield, Shrishal Navi

Iowa State Research Farm Progress Reports

The foliar, stem, and root diseases of soybean are significant components of yield loss in soybean fields. Objectives of this study were to test fungicides against foliar diseases and white mold.


On-Farm Soybean Seed Treatment Trials, Jim Fawcett, Zack Koopman, Lance Miller, Wayne Roush, Josh Sievers Jan 2015

On-Farm Soybean Seed Treatment Trials, Jim Fawcett, Zack Koopman, Lance Miller, Wayne Roush, Josh Sievers

Iowa State Research Farm Progress Reports

Seed treatments offer protection from fungi, insects, and nematodes to germinating seeds and developing seedlings. All legumes require the appropriate rhizobium bacteria in the soil in order for nitrogen fixation to occur. Inoculating the seed with an inoculum can insure the crop can take advantage of this nitrogen fixation.


Effect Of Plastic Mulch On Sweet Potato Yield And Quality, Ajay Nair, Jennifer Tillman, Ray Kruse, Dana Jokela Jan 2015

Effect Of Plastic Mulch On Sweet Potato Yield And Quality, Ajay Nair, Jennifer Tillman, Ray Kruse, Dana Jokela

Iowa State Research Farm Progress Reports

Sweet potato, Ipomoea batatas, is a warmseason vegetable predominantly grown in the southern part of the United States. In recent years, its production region has expanded quite rapidly to various Midwestern and Eastern states.


Ntep Greens Height Bentgrass Study 2014, Dan Strey, Nick Christians, Ryan Adams Jan 2015

Ntep Greens Height Bentgrass Study 2014, Dan Strey, Nick Christians, Ryan Adams

Iowa State Research Farm Progress Reports

The National Turfgrass Evaluation Program (NTEP) conducts trials throughout the United States on turfgrass adaptation. This trial was initiated in September 2014 as part of the NTEP program. This is the first year data were collected. It contains 20 bentgrass cultivars.


Final Year Of Decade-Long National Elm Trial, Jean Batzer, Mark Gleason Jan 2015

Final Year Of Decade-Long National Elm Trial, Jean Batzer, Mark Gleason

Iowa State Research Farm Progress Reports

Although many Dutch elm disease-resistant elm cultivars are available in the nursery trade, much of the public is hesitant to purchase and plant any elm trees. In order to promote interest in planting these trees, scientific data on growth, form, and pest resistance for existing Dutch elm disease resistant elm cultivars are essential.


Preplant And Postemergence Herbicide Programs For Weed Control In No-Till Corn, Micheal Owen, Damian Franzenburg, James Lee, Jacob Eeling Jan 2015

Preplant And Postemergence Herbicide Programs For Weed Control In No-Till Corn, Micheal Owen, Damian Franzenburg, James Lee, Jacob Eeling

Iowa State Research Farm Progress Reports

The purpose of this study was to evaluate various herbicides applied early pre-plant in no-tillage corn for crop injury and weed control.


Northern Research Farm Summary, Micah Smidt Jan 2015

Northern Research Farm Summary, Micah Smidt

Iowa State Research Farm Progress Reports

Contains the Farm and Weather Summary of the Northern Research and Demonstration Farm.


Corn And Soybean Yield Response To Micronutrients In Southwest Iowa, Antonio Mallarino, Mazhar Haq, Joshua Enderson, Ryan Oltmans, Bernie Havlovic Jan 2015

Corn And Soybean Yield Response To Micronutrients In Southwest Iowa, Antonio Mallarino, Mazhar Haq, Joshua Enderson, Ryan Oltmans, Bernie Havlovic

Iowa State Research Farm Progress Reports

Micronutrients are needed in very small amounts but are essential for crop growth. Prior research in Iowa and neighboring states showed inconsistent corn and soybean grain yield responses to fertilization with micronutrients, except for zinc in corn. This report summarizes results of two studies with corn and soybean, one with application to the soil and the other with application to foliage, which were conducted at this farm from 2012 through 2014. The micronutrients evaluated were boron (B), copper (Cu), manganese (Mn), and zinc (Zn).


Mosquito And Arbovirus Activity In 2014, Lyric Bartholomay, Brendan Dunphy Jan 2015

Mosquito And Arbovirus Activity In 2014, Lyric Bartholomay, Brendan Dunphy

Iowa State Research Farm Progress Reports

Mosquitoes are public health concerns as vectors of arthropod-borne viruses (arboviruses) and/or as nuisances to humans, so surveillance efforts are important to determine areas and times that may pose a risk to humans. The ISU Horticulture Research Station (HRS), Ames, Iowa, consistently yields mosquitoes that are positive for West Nile Virus (WNV). Objectives were to continue to assess human risk by monitoring mosquitoes, which are vectors that transmit this virus to people.


On-Farm Corn And Soybean Management Trials, Jim Fawcett, Josh Sievers, Wayne Roush Jan 2015

On-Farm Corn And Soybean Management Trials, Jim Fawcett, Josh Sievers, Wayne Roush

Iowa State Research Farm Progress Reports

Farmers are faced with many decisions in managing corn and soybeans as new technologies are introduced, such as droughttolerant corn hybrids, air reels for combines, and land-rolling equipment. Land rolling is the practice of pulling a large, heavy roller across soybean fields in order to push down rocks, smooth the surface of the field, and help break up residue. The purpose is to protect harvest equipment that could be vulnerable to rocks and corn roots. Yields are expected to improve by creating a more uniform harvest.


On-Farm Soybean Seed Treatment Trials, Jim Fawcett, Zack Koopman, Lance Miller, Wayne Roush, Josh Sievers Jan 2015

On-Farm Soybean Seed Treatment Trials, Jim Fawcett, Zack Koopman, Lance Miller, Wayne Roush, Josh Sievers

Iowa State Research Farm Progress Reports

Seed treatments offer protection from fungi, insects, and nematodes to germinating seeds and developing seedlings. All legumes require the appropriate rhizobium bacteria in the soil in order for nitrogen fixation to occur. Inoculating the seed with an inoculum can insure the crop can take advantage of this nitrogen fixation.


On-Farm Soybean Fungicide Trials, Jim Fawcett, Lance Miller, Lyle Rossiter, Wayne Roush, Josh Sievers, Micah Smidt, Matt Schnabel Jan 2015

On-Farm Soybean Fungicide Trials, Jim Fawcett, Lance Miller, Lyle Rossiter, Wayne Roush, Josh Sievers, Micah Smidt, Matt Schnabel

Iowa State Research Farm Progress Reports

Fungicide applications have become more popular among soybean farmers in recent years. The primary use of fungicides has been to control diseases such as Septoria brown spot, Cercospora leaf blight, and frogeye leaf spot. With lower grain prices, the chances of getting an economic benefit from fungicide applications have decreased.


On-Farm Soybean Fungicide Trials, Jim Fawcett, Lance Miller, Lyle Rossiter, Wayne Roush, Josh Sievers, Micah Smidt, Matt Schnabel Jan 2015

On-Farm Soybean Fungicide Trials, Jim Fawcett, Lance Miller, Lyle Rossiter, Wayne Roush, Josh Sievers, Micah Smidt, Matt Schnabel

Iowa State Research Farm Progress Reports

Fungicide applications have become more popular among soybean farmers in recent years. The primary use of fungicides has been to control diseases such as Septoria brown spot, Cercospora leaf blight, and frogeye leaf spot. With lower grain prices, the chances of getting an economic benefit from fungicide applications have decreased.


Southeast Research Farm Summary, Myron Rees Jan 2015

Southeast Research Farm Summary, Myron Rees

Iowa State Research Farm Progress Reports

Contains the Farm and Weather Summary for the Southeast Research and Demonstration Farm.


On-Farm Soybean Fungicide Trials, Jim Fawcett, Lyle Rossiter, Wayne Roush, Josh Sievers, Micah Smidt, Matt Schnabel Jan 2015

On-Farm Soybean Fungicide Trials, Jim Fawcett, Lyle Rossiter, Wayne Roush, Josh Sievers, Micah Smidt, Matt Schnabel

Iowa State Research Farm Progress Reports

Fungicide applications have become more popular among soybean farmers in recent years. The primary use of fungicides has been to control diseases such as Septoria brown spot, Cercospora leaf blight, and frogeye leaf spot. With lower grain prices, the chances of getting an economic benefit from fungicide applications have decreased.


Isu On-Farm Cooperator Trials: Relationships And Partnerships, Josh Sievers, Lyle Rossiter, Wayne Roush, Micah Smidt, Matt Schnabel, Lance Miller, Jim Rogers, Zack Koopman Jan 2015

Isu On-Farm Cooperator Trials: Relationships And Partnerships, Josh Sievers, Lyle Rossiter, Wayne Roush, Micah Smidt, Matt Schnabel, Lance Miller, Jim Rogers, Zack Koopman

Iowa State Research Farm Progress Reports

Iowa State University (ISU) has a longstanding relationship with Iowa corn and soybean farmers. As a part of this relationship, ISU works to provide quality, unbiased information to assist the decision-making process on farm operations. In 2006, ISU began to expand this commitment with the assistance of northwest Iowa farmers by conducting more trials in their fields. The ISU on-farm cooperator trial program has grown to cover other areas across Iowa. The program links the resources of the ISU research farms, the technical expertise of the ISU field agronomists, the support of the local research farm associations, and volunteer farmercooperators ...


Corn And Soybean Yield Response To Micronutrients In Northern Iowa, Antonio Mallarino, Mazhar Haq, Joshua Enderson, Ryan Oltmans, Micah Smidt Jan 2015

Corn And Soybean Yield Response To Micronutrients In Northern Iowa, Antonio Mallarino, Mazhar Haq, Joshua Enderson, Ryan Oltmans, Micah Smidt

Iowa State Research Farm Progress Reports

Several plant nutrients are referred to as micronutrients because very small amounts are needed. Prior research in Iowa and neighboring states showed inconsistent corn and soybean grain yield responses to micronutrient applications, except for zinc in corn. This report summarizes results of two studies with corn and soybean, one with application to the soil and the other with application to foliage, which were conducted from 2012 through 2014. The micronutrients evaluated were boron (B), copper (Cu), manganese (Mn), and zinc (Zn).


Weather And Growing Season Summary, 2014, Chris Beedle Jan 2015

Weather And Growing Season Summary, 2014, Chris Beedle

Iowa State Research Farm Progress Reports

Cool and wet seemed to be the rule for most of 2014, with several weather records broken over the course of the year.