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Asparagus Cultivar Trial, Patrick O'Malley, Kenneth T. Pecinovsky Jan 2014

Asparagus Cultivar Trial, Patrick O'Malley, Kenneth T. Pecinovsky

Iowa State Research Farm Progress Reports

As local food production has increased in Iowa, there is renewed interest in perennial vegetable crops such as asparagus. The purpose of this multi-year study is to compare the performance of modern male hybrid asparagus cultivars with popular older cultivars under soil and environmental conditions at the ISU Northeast Research and Demonstration Farm, Nashua, Iowa.


Effect Of Plant Population And Row Spacing On Soybean Yield, Terry L. Basol, Kenneth T. Pecinovsky Jan 2014

Effect Of Plant Population And Row Spacing On Soybean Yield, Terry L. Basol, Kenneth T. Pecinovsky

Iowa State Research Farm Progress Reports

Growing soybeans in narrow rows compared to 30 in. rows has been shown to improve yields in certain studies. Reasons given for this include increased sunlight interception by the crop canopy and increased competition of the soybeans against weed populations. Other studies conducted have resulted in yields where 30 in. rows have been equal to or greater than narrow rows. The first objective in this two-year study was to assess and compare the differences in 30 in. and 10 in. soybean rows for northeast Iowa.

Due to the rising costs of soybean seed, seeding rates are being scrutinized by farmers ...


Sustainable Plastic Mulch Options For Vegetable Production Systems, Ajay Nair, Brandon H. Carpenter Jan 2014

Sustainable Plastic Mulch Options For Vegetable Production Systems, Ajay Nair, Brandon H. Carpenter

Iowa State Research Farm Progress Reports

The objective of this trial was to evaluate the use of Greenshift plastic mulch in a lettuce production system.


Northern Research Farm Summary, Northern Research And Demonstration Farm, Micah B. Smidt Jan 2014

Northern Research Farm Summary, Northern Research And Demonstration Farm, Micah B. Smidt

Iowa State Research Farm Progress Reports

Contents: North Central Iowa Research Association; Farm and Weather Summary; Information on Experiments in Previous Annual Progress Reports; Research Farm Projects


Elite Soybean Test—South, Kevin O. Scholbrock Jan 2014

Elite Soybean Test—South, Kevin O. Scholbrock

Iowa State Research Farm Progress Reports

The purpose of this test was to evaluate the experimental elite soybean lines adapted to southern Iowa. The 2013 Elite Test for comparison of agronomic traits included SCN resistant, general use, large seed and high protein, and lipoxygenase-free varieties released by Iowa State University. These varieties are used in the production of soy foods.


Long-Term Tillage And Crop Rotation Effects On Soil Carbon And Soil Productivity, Mahdi Al-Kaisi, David Kwaw-Mensah Jan 2014

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

Iowa State Research Farm Progress Reports

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


Biocentury Research Farm Update, Andrew A. Suby Jan 2014

Biocentury Research Farm Update, Andrew A. Suby

Iowa State Research Farm Progress Reports

The BioCentury Research Farm (BCRF) had a diversity of users in 2013. Iowa State University (ISU) faculty and staff from the Departments of Agricultural and Biosystems Engineering; Agronomy; Biochemistry, Biophysics, and Molecular Biology; Civil, Construction, and Environmental Engineering; and Food Science and Human Nutrition, as well as the Bioeconomy Institute (BEI), Center for Crops Utilization Research (CCUR), Center for Sustainable Environmental Technologies (CSET), College of Agriculture and Life Sciences, and Extension and Outreach conducted research, teaching, and/or outreach at the BCRF. Private industry users of the BCRF included AGCO, Avello Bioenergy, Deere & Company, Direvo Industrial Biotechnology, DuPont Cellulosic Ethanol ...


Above- And Below-Ground Biomass Production In Corn And Prairie Bioenergy Cropping Systems, Matthew Z. Liebman, Meghann Elizabeth Jarchow, Ranae N. Dietzel, David N. Sundberg Jan 2014

Above- And Below-Ground Biomass Production In Corn And Prairie Bioenergy Cropping Systems, Matthew Z. Liebman, Meghann Elizabeth Jarchow, Ranae N. Dietzel, David N. Sundberg

Iowa State Research Farm Progress Reports

The Comparison of Biofuel Systems (COBS) project is a long-term, 20-acre field experiment designed to provide quantitative, side-by-side comparisons of corn- and prairie-based biofuel feedstock production systems with respect to biomass yields, liquid fuel potential, and multiple environmental impacts. Here, we report on above- and below-ground biomass production from selected treatments.


Weather And Growing Season Summary, Wayne B. Roush Jan 2014

Weather And Growing Season Summary, Wayne B. Roush

Iowa State Research Farm Progress Reports

Unusual weather extremes seemed to be the rule for most of 2013, with several weather records broken.


Growth Performance And Ultrasonic Scan Of Purebred Berkshire Pigs Housed In Hoop Buildings In Iowa (Trials 3 And 4), P. Matthew Swantek, David R. Stender, John W. Mabry, Mark S. Honeyman, Wayne B. Roush Jan 2014

Growth Performance And Ultrasonic Scan Of Purebred Berkshire Pigs Housed In Hoop Buildings In Iowa (Trials 3 And 4), P. Matthew Swantek, David R. Stender, John W. Mabry, Mark S. Honeyman, Wayne B. Roush

Iowa State Research Farm Progress Reports

A certified Berkshire program continues to lead niche pork production markets based on its meat quality advantage over commodity-based pork. This economic advantage is especially valuable for smaller, more traditional pork producers. The disadvantages of Berkshire pigs are fatter carcasses, slower gains, and less efficient feed conversion compared with commodity pork production. Consequently, these pigs are often a better fit for less intensive or lower production systems.


Comparison Of Ivermectin And Extended-Release Eprinomectin Deworming Treatment On Stocker And Subsequent Feedlot Performance And Carcass Characteristics Of Fall-Born Angus Heifers, Christopher A. Clark, Patrick J. Gunn, Joe Dedrickson, Jerry Sorenson Jan 2014

Comparison Of Ivermectin And Extended-Release Eprinomectin Deworming Treatment On Stocker And Subsequent Feedlot Performance And Carcass Characteristics Of Fall-Born Angus Heifers, Christopher A. Clark, Patrick J. Gunn, Joe Dedrickson, Jerry Sorenson

Iowa State Research Farm Progress Reports

Severe parasite infections in beef cattle are sometimes associated with decreased growth and performance and clinical disease. Stocker cattle are exposed to many parasites and appropriate deworming strategies can help to minimize parasite burdens when cattle are on grass. Feedlot cattle are often dewormed at arrival and have minimal exposure to additional parasites once placed in the feedlot. The purpose of this study was to evaluate stocker and feedlot performance and carcass characteristics relative to treatment with deworming agents of varying durations of activity.


Attracting Beneficial Insects To Iowa Agricultural Crops Through Floral Provisioning, Thelma T. Heidel-Baker, Matthew E. O'Neal, Jean C. Batzer, Mark L. Gleason Jan 2014

Attracting Beneficial Insects To Iowa Agricultural Crops Through Floral Provisioning, Thelma T. Heidel-Baker, Matthew E. O'Neal, Jean C. Batzer, Mark L. Gleason

Iowa State Research Farm Progress Reports

Beneficial insects can provide valuable ecosystem services such as pest control and pollination for agricultural crops, but agricultural crops often provide limited food and refuge resources necessary to these beneficial insects. Planting flowers can provide some of these limited resources such as nectar, pollen, and refuge. Floral provisioning could enhance the beneficial insect community in agricultural crops if flowers are placed adjacent to the crops. This research project explores whether floral provisioning can increase the ecosystem services provided by pollinating and predatory insects in agricultural crops.


Comparison Of Organic And Conventional Crops At The Neely-Kinyon Long-Term Agroecological Research Site, Kathleen Delate, Andres P. Glasener, Randy J. Breach Jan 2014

Comparison Of Organic And Conventional Crops At The Neely-Kinyon Long-Term Agroecological Research Site, Kathleen Delate, Andres P. Glasener, Randy J. Breach

Iowa State Research Farm Progress Reports

The Neely-Kinyon Long-term Agroecological Research (LTAR) site was established in 1998 to study the long-term effects of organic production in Iowa.


Corn And Soybean Production With A Winter Rye Cover Crop, John E. Sawyer, Jose L. Pantoja, Daniel W. Barker Jan 2014

Corn And Soybean Production With A Winter Rye Cover Crop, John E. Sawyer, Jose L. Pantoja, Daniel W. Barker

Iowa State Research Farm Progress Reports

Objectives of this project were to study corn nitrogen (N) fertilization requirement and corn/soybean yield response when grown in a rye cover cropping system. Multiple rates of N fertilizer were applied, with measurement of corn yield response to applied N and soybean yield with and without a fall planted winter rye cover crop. The study was conducted at multiple research farms, with the intent for comparison of with and without a cover crop system across varying soil and climatic conditions in Iowa.


Western Research Farm Summary, Western Iowa Experimental Farm Association, Wayne B. Roush Jan 2014

Western Research Farm Summary, Western Iowa Experimental Farm Association, Wayne B. Roush

Iowa State Research Farm Progress Reports

A minimum of equipment changes occurred during 2013. A small spot sprayer, a new gooseneck hitch for the pick-up and a used John Deere hi-boy sprayer were the only additions. The hi-boy is shared with another ISU farm.


Phosphorus Availability In Beef Cattle Manure For Corn And Soybean, Antonio P. Mallarino, Mazhar Ul Haq Jan 2014

Phosphorus Availability In Beef Cattle Manure For Corn And Soybean, Antonio P. Mallarino, Mazhar Ul Haq

Iowa State Research Farm Progress Reports

An efficient utilization of beef manure nutrients is important to improve the sustainability of animal and crop production systems and avoid unnecessary use of energy and non-renewable resources. Manure phosphorus (P) management differs from inorganic fertilizers for several reasons. Manure is variable in P concentration. It has both organic and inorganic P forms. Also, manure handling is more difficult than corn fertilizer. Organic P forms may not be entirely or immediately available for plant uptake but may become available over time. There is uncertainty about the crop-availability of beef manure P, which is reflected by a wide range (60 to ...


Evaluation Of Foliar Fungicides And Insecticides On Soybeans In Central Iowa, Daren S. Mueller, Warren L. Pierson, Stith N. Wiggs Jan 2014

Evaluation Of Foliar Fungicides And Insecticides On Soybeans In Central Iowa, Daren S. Mueller, Warren L. Pierson, Stith N. Wiggs

Iowa State Research Farm Progress Reports

Iowa State University personnel assessed foliar fungicides and insecticide use on soybeans at seven locations across Iowa including the Northwest Farm (Sutherland), Northern Farm (Kanawha), Northeast Farm (Nashua), Curtiss Farm (Ames), Armstrong Farm (Lewis), McNay Farm (Chariton), and Southeast Farm (Crawfordsville) (Figure 1).


Seasonal And Rotational Influences On Corn Nitrogen Requirements, John E. Sawyer, Daniel W. Barker Jan 2014

Seasonal And Rotational Influences On Corn Nitrogen Requirements, John E. Sawyer, Daniel W. Barker

Iowa State Research Farm Progress Reports

This project was designed to study the N fertilization needs in continuous corn (CC) and corn rotated with soybean (SC) as influenced by location and climate. Multiple rates of fertilizer N were spring applied, with the intent to measure yield response to N within each rotation on a yearly basis for multiple years at multiple sites across Iowa. This will allow the determination of N requirements for each rotation, differences that exist between the two rotations, responses to applied N across different soils and climatic conditions, and evaluation of tools used to adjust N application.


Diesel Fuel Consumption During Field Operations, H. Mark Hanna, Dana D. Schweitzer Jan 2014

Diesel Fuel Consumption During Field Operations, H. Mark Hanna, Dana D. Schweitzer

Iowa State Research Farm Progress Reports

Direct energy expenses (diesel, gasoline, propane, electricity) total more than $1 billion annually for Iowa’s farmers. Farm management techniques such as adjusting tractor gear and throttle settings, reducing tillage depths, and monitoring tractor tire inflation pressures can reduce diesel fuel consumption for row crop production. This study is being conducted over multiple years to measure the effects of energy management techniques on tractor fuel consumption during spring and fall field operations.


Soil Moisture, Joel L. Dejong, Joel L. Dejong, Paul C. Kassel Jan 2014

Soil Moisture, Joel L. Dejong, Joel L. Dejong, Paul C. Kassel

Iowa State Research Farm Progress Reports

Soil moisture is critical for crop production in most years in northwest and west central Iowa.


Seasonal And Rotational Influences On Corn Nitrogen Requirements, John E. Sawyer, Daniel W. Barker Jan 2014

Seasonal And Rotational Influences On Corn Nitrogen Requirements, John E. Sawyer, Daniel W. Barker

Iowa State Research Farm Progress Reports

This project was designed to study the N fertilization needs in continuous corn (CC) and corn rotated with soybean (SC) as influenced by location and climate. Multiple rates of fertilizer N are spring applied, with the intent to measure yield response to N within each rotation on a yearly basis for multiple years at multiple sites across Iowa. This will allow determination of N requirements for each rotation, differences that exist between the two rotations, responses to applied N across different soils and climatic conditions, and evaluation of tools used to adjust N application.


Corn And Soybean Response To The Micronutrients Boron, Manganese, And Zinc Applied To The Soil, Antonio P. Mallarino, Ryan R. Oltmans, Joshua T. Enderson, Nicholas Piekema Jan 2014

Corn And Soybean Response To The Micronutrients Boron, Manganese, And Zinc Applied To The Soil, Antonio P. Mallarino, Ryan R. Oltmans, Joshua T. Enderson, Nicholas Piekema

Iowa State Research Farm Progress Reports

Prior research on micronutrients fertilization for corn and soybean has been scarce in Iowa and has shown inconsistent yield responses. Therefore, the objective of a study conducted during 2012 and 2013 was to assess effects of boron (B), manganese (Mn), zinc (Zn), and their mixture on corn and soybean grain yield. Iowa State University has no interpretations of soil or tissue tests for micronutrients, other than for Zn in corn and sorghum.


Colored Plastic Mulches For High Tunnel Tomato Production, Ajay Nair, Bernard J. Havlovic Jan 2014

Colored Plastic Mulches For High Tunnel Tomato Production, Ajay Nair, Bernard J. Havlovic

Iowa State Research Farm Progress Reports

Weather often is one of the limiting factors for crop production in northern states. Growers in Iowa and other northern climatic regions are increasingly utilizing high tunnels to extend their growing season and increase fruit and vegetable production. In early spring and late fall, high tunnels help warm the air and soil and aid with crop growth and development. However, during summer, temperatures rise quickly in high tunnels and can detrimentally affect crop growth and development.


Update: Isu Farm Network, Wayne B. Roush Jan 2014

Update: Isu Farm Network, Wayne B. Roush

Iowa State Research Farm Progress Reports

Since its inception in 1946, Iowa State University (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 ISU Farmer Assistant Research and Management (FARM) and started conducting on-farm trials with participating local producers during the 2010 growing season.


Long-Term Tillage And Crop Rotation Effects On Soil Carbon And Soil Productivity, Mahdi Al-Kaisi, Mahdi Al-Kaisi, David Kwaw-Mensah Jan 2014

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

Iowa State Research Farm Progress Reports

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


The Isu Compost Facility After Five Years, Steve J. Jonas, Timothy R. Goode, Kapil Arora, Mark S. Honeyman Jan 2014

The Isu Compost Facility After Five Years, Steve J. Jonas, Timothy R. Goode, Kapil Arora, Mark S. Honeyman

Iowa State Research Farm Progress Reports

The University Compost Facility has completed five full years of operation. The facility is managed by the ISU Research Farms and has a separate revolving account that receives fees and sales and pays expenses. The facility is designed to be self-supporting, i.e. not receive allocations for its operations. The facility is located at 52274 260th Street, Ames, Iowa.


Attracting Beneficial Insects To Iowa Agricultural Crops Through Floral Provisioning, Thelma T. Heidel-Baker, Matthew E. O'Neal, Jean C. Batzer, Mark L. Gleason Jan 2014

Attracting Beneficial Insects To Iowa Agricultural Crops Through Floral Provisioning, Thelma T. Heidel-Baker, Matthew E. O'Neal, Jean C. Batzer, Mark L. Gleason

Iowa State Research Farm Progress Reports

Beneficial insects can provide valuable ecosystem services such as pest control and pollination for agricultural crops, but agricultural crops often provide limited food and refuge resources necessary to these beneficial insects. Planting flowers can provide some of these limited resources such as nectar, pollen, and refuge. Floral provisioning could enhance the beneficial insect community in agricultural crops if flowers are placed adjacent to the crops. This research project explores whether floral provisioning can increase the ecosystem services provided by pollinating and predatory insects in agricultural crops.


Evaluation Of Foliar Fungicides And Insecticides On Soybeans In Southwest Iowa, Daren S. Mueller, Warren L. Pierson, Stith N. Wiggs Jan 2014

Evaluation Of Foliar Fungicides And Insecticides On Soybeans In Southwest Iowa, Daren S. Mueller, Warren L. Pierson, Stith N. Wiggs

Iowa State Research Farm Progress Reports

Iowa State University personnel assessed foliar fungicides and insecticide use on soybeans at seven locations across Iowa including the Northwest Farm (Sutherland), Northern Farm (Kanawha), Northeast Farm (Nashua), Curtiss Farm (Ames), Armstrong Farm (Lewis), McNay Farm (Chariton), and Southeast Farm (Crawfordsville) (Figure 1).


2013 Home Demonstration Garden, Cynthia L. Haynes Jan 2014

2013 Home Demonstration Garden, Cynthia L. Haynes

Iowa State Research Farm Progress Reports

Themes for the 2013 Home Demonstration Garden Field Days included: 1) grafted tomatoes, 2) tomatoes in raised beds and bags, 3) colored bell pepper cultivar trials, 4) evening or moon garden, and 5) garden of giants.


Evaluation Of Foliar Fungicides And Insecticides On Soybeans In South Central Iowa, Daren S. Mueller, Warren L. Pierson, Stith N. Wiggs Jan 2014

Evaluation Of Foliar Fungicides And Insecticides On Soybeans In South Central Iowa, Daren S. Mueller, Warren L. Pierson, Stith N. Wiggs

Iowa State Research Farm Progress Reports

Iowa State University personnel assessed foliar fungicides and insecticide use on soybeans at seven locations across Iowa including the Northwest Farm (Sutherland), Northern Farm (Kanawha), Northeast Farm (Nashua), Curtiss Farm (Ames), Armstrong Farm (Lewis), McNay Farm (Chariton), and Southeast Farm (Crawfordsville) (Figure 1).