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Arkansas Soybean Performance Tests 2022, J. F. Carlin, R. B. Mulloy, R. D. Bond

Arkansas Agricultural Experiment Station Research Series

Soybean variety and strain performance tests are conducted each year in Arkansas by the University of Arkansas System Division of Agriculture’s Arkansas Crop Variety Improvement Program. The tests provide information to companies developing varieties and/ or marketing seed within the state, and aid the Arkansas Cooperative Extension Service in formulating variety recommendations for soybean producers.

Evaluation Of Soil Moisture Sensing Technologies In Silt Loam And Loamy Sand Soils: Assessment Of Performance, Temperature Sensitivity, And Site- And Sensor-Specific Calibration Functions, K. Sharma, Sibel Irmak, M. S. Kukal, M. C. Vuran, Amit J. Jhala, Xia Qiao

Department of Agronomy and Horticulture: Faculty Publications

Reliable soil moisture information is vital for optimal irrigation management, farm-level agronomic decision-making, hydrologic studies, and cropping systems modeling. A wide range of soil moisture sensing technologies is commercially available, but their performance must be evaluated for diverse conditions of use. In this research, we investigated nine soil moisture sensors based on time-domain reflectometry, capacitance, and electrical resistance principles in production field conditions with two installation orientations, i.e., vertical (V) and horizontal (H), in two soils (silt loam and loamy sand) and two growing seasons (2017 and 2018). Performance parameters deduced from the 2017 datasets revealed that sensor type and …

Effects Of Different Water And Nitrogen Regimens On Yield Of Winter Wheat Produced In Nebraska, Joseph Emory Davis

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Wheat is the 3rd most prominent crop in the USA and approximately 50% is exported annually. Nebraska wheat production is 11^th in the country, and it plays a major role in the state's agricultural economy, especially in western NE. Generally, wheat is grown under dryland conditions and the region grows much more wheat on unirrigated land than it does on irrigated. However, deficit irrigation has shown great value in producing high yielding wheat with much less water than needed for other crops. Finding new ways to leverage irrigation in wheat production may help address the need to produce food …

Benchmarking Irrigation Water Use In Producer Fields In The Us Central Great Plains, Katherine E. B. Gibson, Justin E. Gibson, Patricio Grassini

Department of Agronomy and Horticulture: Faculty Publications

Efficient use of freshwater resources is necessary to balance food production and long-term sustainability of irrigated agricultural systems. Here we developed a framework to benchmark irrigation water use relative to crop yield for individual fields based on site-specific weather and soil. Subsequently, we used the framework to diagnose on-farm irrigation management, in relation to crop production, in maize and soybean producer fields in Nebraska (USA).We found actual irrigation to be similar to estimated irrigation water requirement in about half of the fields (i.e. small water surplus). Remarkably, these fields attained yields similar to fields where actual irrigation exceeded water requirements …

Empowerment And Tech Adoption: Introducing The Treadle Pump Triggers Farmers’ Innovation In Eastern Ethiopia, Shimelis Beyene, Teshome H. Regassa, Belaineh Legesse, Martha Mamo, Tsegaye Tadesse

Department of Agronomy and Horticulture: Faculty Publications

In 2013, thirty-eight treadle pumps (TPs) were installed as low-cost technology introduction for small-scale irrigation in eastern Ethiopia. This pilot project also trained six farmers on tube well excavation, as well as the installation and maintenance of pumps. In June 2015, researchers visited nine of the thirty-eight TP villages and found only two TPs functioning as originally installed. The rest were replaced with a new technology developed by the trained farmers. Farmers, empowered by training, gained more control in developing technology options tailored to local needs and conditions of their communities. Adopters of the new technology stated that the limited …

Long-Term Winter Wheat (Triticum Aestivum L.) Seasonal Irrigation Amount, Evapotranspiration, Yield, And Water Productivity Under Semiarid Climate, Koffi Djaman, Michael O'Neill, Curtis K. Owen, Daniel Smeal, Margaret West, Dallen Begay, Samuel Allen, Komlan Koudahe, Suat Irmak, Kevin Lombard

Department of Agronomy and Horticulture: Faculty Publications

A long-term field experiment was conducted from 2002 to 2014 for the evaluation of yield and water productivity of three winter wheat varieties—Kharkof, Scout 66, and TAM107—under sprinkler irrigation at New Mexico State University Agricultural Science Center at Farmington, NM. Winter wheat daily evapotranspiration was estimated following the United Nations Food and Agriculture Organization FAO crop coefficient approach (ETc = Kc ETo), and crop water use efficiency (CWUE), evapotranspiration water use efficiency (ETWUE), and irrigation water use efficiency (IWUE) were estimated for each growing season. There was inter-annual variation in seasonal precipitation and irrigation amounts. Seasonal irrigation amounts varied from …

Assessing Explanatory Factors For Variation In On-Farm Irrigation In Us Maize-Soybean Systems, Katherine E.B. Gibson, Haishun S. Yang, Trenton E. Franz, Dean E. Eisenhauer, John B. Gates, Paolo Nasta, Bhupinder S. Farmaha, Patricio Grassini

Department of Agronomy and Horticulture: Faculty Publications

Irrigation exhibits large variation across producer fields, even within same region and year. A knowledge gap exists relative to factors that explain this variation, in part due to lack of availability of high-quality irrigation data from multiple field-years. This study assessed sources of variation in irrigation using a large database collected during 9 years (2005–2013) from ca. 1400 maize and soybean producer fields in Nebraska, central USA (total of 12,750 field-year observations). The study area is representative of ca. 4.5 million ha of irrigated land sown with maize and soybean. Influence of biophysical (weather, soil, and crop type) and behavioral …

Nitrogen And Water Effects On Canopy Sensor Measurements For Site-Specific Management Of Crops, Nicholas C. Ward

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Water and nitrogen (N) are undoubtedly the two largest agricultural inputs globally. Coupled with advances in site-specific management technology their integration into production agriculture will allow for the most efficient use these crop input resources. Active canopy sensors offer the ability to measure biophysical plant traits rapidly and make assessments about plant status. Specifically, optical sensor measurements of light reflectance assess plant N status allowing for in-season and on-the-go N recommendations and applications; while infrared thermometers (IRT) measurement of canopy temperature can be used a tool for irrigation management. To evaluate how these technologies work among different plant stress environments …

Soil And Crop Response To Stover Removal From Rainfed And Irrigated Corn, Ian Kenney, Humberto Blanco-Canqui, Deann R. Presley, Charles W. Rice, Keith Janssen, Brian Olson

Department of Agronomy and Horticulture: Faculty Publications

Excessive corn (Zea mays L.) stover removal for biofuel and other uses may adversely impact soil and crop production. We assessed the effects of stover removal at 0, 25, 50, 75, and 100% from continuous corn on water erosion, corn yield, and related soil properties during a 3-year study under irrigated and no-tillage management practice on a Ulysses silt loam at Colby, irrigated and strip till management practice on a Hugoton loam at Hugoton, and rainfed and no-tillage management practice on a Woodson silt loam at Ottawa in Kansas, USA. The slope of each soil was <1%. One year after removal, complete (100%) stover removal resulted in increased losses of sediment by 0.36–0.47 Mg ha-1 at the irrigated sites, but, at the rainfed site, removal at rates as low as 50% resulted in increased sediment loss by 0.30 Mg ha-1 and sediment-associated carbon (C) by 0.29 kg ha-1. Complete stover removal reduced wet aggregate stability of the soil at the irrigated sites in the first year after removal, but, at the rainfed site, wet aggregate stability was reduced in all years. Stover removal at rates ≥ 50%resulted in reduced soil water content, increased soil temperature in summer by 3.5–6.8 °C, and reduced tem-perature in winter by about 0.5 °C. Soil C pool tended to decrease and crop yields tended to increase with an increase in stover removal, but 3 years after removal, differences were not significant. Overall, stover removal at rates ≥50% may enhance grain yield but may increase risks of water erosion and negatively affect soil water and temperature regimes in this region.

Drivers Of Spatial And Temporal Variation In Soybean Yield And Irrigation Requirements In The Western Us Corn Belt, Patricio Grassini, Jessica A. Torrion, Kenneth Cassman, Haishun Yang, James Specht

Department of Agronomy and Horticulture: Faculty Publications

Both rainfed and irrigated soybean production are important in Nebraska (western US Corn Belt), accounting for a respective 48 and 52% of the state’s soybean production of 7 Mt on a respective 55 and 45% share of the state soybean area of 1.9 Mha. To date, no assessment of factors that may account for regional and inter-annual variation in yield and irrigation amount has been performed. To accomplish that objective, we evaluated a database containing on-farm field yields and total irrigation amount used in those fields. These data have been collected annually from ca. 1000 soybean fields in six regions …

W283 Should Tennessee Tobacco Growers Invest In Irrigation, Fertigation Or Plastic Mulch?, Brian G. Leib, Eric F. Caldwell, Hubert J. Savoy, John R. Buchanan

Field & Commercial Crops

Version 2.0

2006 Lowbush Blueberry Project Reports, Kristi Crowe, Alfred A. Bushway, Rodney J. Bushway, Vivian Ch Wu, Brian Perkins, Pam Small, Darrell Donahue, Frank Drummond, Judith Collins, Floyd Dowell, Dorothy J. Klimis-Zacas, Mary Ellen Camire, Gordon Starr, David E. Yarborough, S Hoffmann, Daniel J. Bell, Seanna L. Annis, Tamara Levitsky, Loretta Kreider, Kristen Mcgovern, K Frost, John M. Smagula, Qian Wang, Kerry Fl Guiseppe

Wild Blueberry Research Reports

The 2006 edition of the Lowbush Blueberry Project Reports was prepared for the Wild Blueberry Commission of Maine and the Wild Blueberry Advisory Committee by researchers at the University of Maine, Orono. Projects in this report include:

1. Evaluation of Emerging Disinfection Technologies for Wild Blueberry Processing

2. Incorporation of wild blueberry puree into a soy-based burger and its effect on sensory and chemical properties of the broiled burgers

3. Infestation Detection using NIRS

4. Mechanism of Action through which Wild Blueberries affect Arterial Functional Properties in Normotensive and Spontaneously Hypertensive Rats

5. Practical Microbial Control Approach for Wild Blueberries …

Nutrient Uptake Of Maize Affected By Nitrogen And Potassium Fertility In A Humid Subtropical Environment, H. Arnold Bruns, M. Wayne Ebelhar

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

Nitrogen (N) and potassium (K) fertility management of maize (Zea mays L.) in the humid subtropical Mississippi Delta may differ from a temperate climate because of its use in rotation with cotton (Gossypium hirsutum L.), soil temperatures rarely falling to 0 °C, and heavy winter rains that facilitate nutrient losses. An experiment to determine the [N] (concentration = [ ]), phosphorus [P], [K], calcium [Ca], magnesium [Mg], iron [Fe], manganese [Mn], zinc [Zn], and copper [Cu] and their total contents plant^-1 of maize grown in rotation with cotton, using N fertility levels of (134, 179, 224, 269, …

2003 Wild Blueberry Project Reports, Alfred A. Bushway, Rodney J. Bushway, Kristi Crowe, Brian Perkins, Mary Ellen Camire, Kathy Davis-Dentici, Michael Dougherty, Beth Bernier, Darrell Donahue, Frank Drummond, Judith Collins, Floyd Dowell, Dorothy J. Klimis-Zacas, Gordon C. Starr, David E. Yarborough, Constance S. Stubbs, Seanna L. Annis, John M. Smagula, Ilse W. Fastook, Kerry F. Lough

Wild Blueberry Research Reports

The 2003 edition of the Wild Blueberry Project Reports was prepared for the Wild Blueberry Commission of Maine and the Wild Blueberry Advisory Committee by researchers at the University of Maine, Orono. Projects in this report include:

1. Factors Affecting the Microbial and Pesticide Residues Levels on Lowbush Blueberries

2. Effect of Blueberry Products on Oxidation in Ground Beef Patties

3. Infestation Detection using Near-Infrared Spectroscopy

4. Whole Wild Blueberries and Arterial Functional Properties

5. Irrigation Water use in Wild Blueberry Production

7. Control Tactics for Blueberry Pest Insects

8. IPM Strategies

9. Biology and Ecology of Blueberry Pest Insects, …

2001 Wild Blueberry Csrees Project Reports, Alfred A. Bushway, Mary Ellen Camire, Kathy Davis-Dentici, Michael Dougherty, Kathleen Buzzard, Rodney J. Bushway, Kristi Crowe, Brian Perkins, Darrell W. Donahue, Frank Drummond, Judy Collins, Rose Mary Seymour, Maya Panangadan, Maribeth Haines, Heather Mclaughlin, S L. Annis, C S. Stubbs, John M. Smagula, Walter Litten, Karen Loennecker, Adam Nielsen, David E. Yarborough, Timothy M. Hess, John Jemison

Wild Blueberry Research Reports

The 2001 edition of the Wild Blueberry CSREES Progress Reports was prepared for the Maine Wild Blueberry Commission and the University of Maine Wild Blueberry Advisory Committee by researchers at the University of Maine, Orono. Projects in this report include:

1. Effect of Wild Blueberry Products on Oxidation in Meat Based Food Systems

2. Factors Affecting the Microbial and Pesticide Residues Levels on Wild Blueberries

3. Determination of Pesticide Residue Levels in Fresh and Processed Wild Blueberries

4. Separation of Maggot-Infested Wild Blueberries in the IQF Processing Line

5. Water Use of Wild Blueberries and the Impact of Plant Water …

1995 Csrees Reports, Alfred A. Bushway, Therese M. Work, Huanli Zhang, Raoul Pelletier, Rodney J. Bushway, Brian Perkins, Mary Ellen Camire, Michael Dougherty, H Y. Forsythe Jr, Judith A. Collins, Frank A. Drummond, Constance S. Stubbs, Paul E. Capiello, John M. Smagula, Youzhi Chen, Scott Dunham, Walter Litten, David E. Yarborough, Timothy M. Hess, John Jemison

Wild Blueberry Research Reports

The 1995 edition of the CSREES Reports was prepared for the Maine Wild Blueberry Commission and the University of Maine Wild Blueberry Advisory Committee by researchers at the University of Maine, Orono. Projects in this report include:

1. Factors Affecting the Quality of IQF Blueberries

2. Preventing the Bleeding of Blueberry Fruit in Bakery Products

3. Removing Water from Blueberries Before Freezing

4. Determination of Pesticide Residue Levels in Freshly Harvested and Processed Lowbush Blueberries

5. Industrial Ingredients from Cull Blueberries

6. Application of Heat as a Method of Controlling Secondary Pest Insects on Lowbush Blueberries

7. The Phenology and …

Nitrogen Source And Application Method: Does It Matter?, Gilbert D. Miller, Jay C. Andersen

Archived Natural Resources Publications

Irrigation management has a greater effect on the amount of nitrate that is leached out of the root one than does the type of nitrogen applied.

Maine Blueberry Advisory Committee Research Report, H Y. Forsythe Jr, Judith A. Collins, J Riley, David H. Lambert, David E. Yarborough, E A. Osgood, Frank A. Drummond, John M. Smagula, Delmont Emerson, Warren Hedstrom, Alfred A. Bushway, Mary Ellen Camire, Rodney J. Bushway, Susan A. Ismail, Therese M. Work, Linda J. Irvine, Craig J. Schroeder, Jasotha Kugabalasooriar, Richard J. Rowe, Gilles H. Lemieux, Rene Verrault, Paul E. Cappiello, James D. Leiby, Michele C. Marra, Willem Brutsaert, David Brooks, E R. Huff

Wild Blueberry Research Reports

The 1990 edition of the Maine Blueberry Advisory Committee Research Reports was prepared for the Maine Wild Blueberry Commission and the University of Maine Wild Blueberry Advisory Committee by researchers with the Maine Agricultural Experiment Station and Maine Cooperative Extension Service at the University of Maine, Orono. Projects in this report include:

1. Biology and action thresholds of secondary blueberry pests

2. Control of blueberry maggot

3. Control of secondary blueberry pests

4. Application of steam as a method of controlling secondary pest insects on lowbush blueberry: a feasibility study

5. Pollination of the lowbush blueberry by native bees

6. …

Vertical Drainage In Field Cores, Larry G. Wells, R. W. Skaggs

Biosystems and Agricultural Engineering Faculty Publications

No abstract provided.

Bulletin No. 346 - Irrigation Waters Of Utah, J. P. Thorne, D. W. Thorne

UAES Bulletins

Irrigation waters are never pure. All contain some dissolved salts. The amount may vary from a trace to concentrations so great that the water is unfit for use. The kind of salt in irrigation water may be even more important than the total amount. Borates in extremely low quantities, for example, may injure or kill crop plants. If the proportion of sodium in irrigation water is high, the soil may be gradually rendered unproductive. On the other hand, the salts may consist in part of essential plant nutrients or other helpful salts that aid in keeping soils productive.

Bulletin No. 349 - Management Of Irrigation And Drainage Enterprises In Utah: With Special Reference To The Northern Cache Valley Area, J. Howard Maughan, O. W. Israelsen

UAES Bulletins

The purposes of this study on the management of irrigation and drainage enterprises in northern Cache Valley, Utah, are to assist farmers in the area and in other similar areas to learn the causes of their irrigation and drainage problems and to determine the best approach toward their solution. The bulletin first presents some of the general problems connected with irrigation and drainage organizations, and then discusses the problems of the local area, known as the Cub River area.

Bulletin No. 326 - Rainfall And Irrigation In Relation To Soil Erosion, Willard Gardner, John Hale Gardner, C. W. Lauritzen

UAES Bulletins

This paper attempts to point out to farmers, agricultural specialists, and others who may be interested, pertinent facts regarding rainfall intensity and other meteorological data that have to do with the wearing down of range and agricultural soils, and to present by means of diagrams illustrations of general relationships between the rate of wearing down of irrigated soils, the size of the irrigation stream and the slope of the eroding surface.

Large streams running down steep slopes, whether from rainfall or from irrigation, constitute a destructive process that cannot be completely controlled. Fortunately, vegetation protects the soil against the destructive …

Bulletin No. 311 - Water-Application Efficiencies In Irrigation, Orson W. Israelsen, Wayne D. Criddle, Dean K. Fuhriman, Vaughn E. Hansen

UAES Bulletins

There is today an urgent need for information on how to distribute irrigation water uniformly over land surfaces. Land and water are no longer cheap. Prices of the better irrigated lands in Utah range from $200 to $400 or more per acre, whereas dry farm lands are worth less than $100. Water stock which formerly sold at $25 per share now costs $100, or more. Storage water in the newer reservoirs costs from $30 to $50 per acre-foot, an amount equivalent to $9,000 or more for a full water right to irrigate 100 acres. Because of these high costs of …

Bulletin No. 288 - Draingage And Irrigation, Soil, Economic, And Social Conditions, Delta Area, Utah Division 4: Social Conditions, Joseph A. Geddes, Carmen D. Frederickson, Eldred C. Bergeson

UAES Bulletins

This study is a part of a more comprehensive one which was organized in 1928 for the purpose of ascertaining what conditions existed in bonded irrigation and drainage districts which were unable to. liquidate obligations incurred.

The first such area to be studied was the Delta Area in Millard County. This area was selected for this study because of the pressing need for more detailed and wider information than was available to either the farmers or the bondholders and because available facts based on careful study might aid in achieving fairer settlements. These data might also assist other areas in …

Bulletin No. 273 - Drainage And Irrigation, Soil, Economic, And Social Conditions, Delta Area, Utah, Division 3: Economic Conditions, W. Preston Thomas, George T. Blanch

UAES Bulletins

Project 90-A Study of Factors Influencing the Financial Condition of Certain Utah Irrigation and Drainage Projects-was undertaken in 1928 as an intensified study of local areas. This study was divided among four departments, with a project leader for each particular phase of the study. These four project leaders, guided by the Station Director, have constituted a committee in immediate charge of this project. Subprojects and their respective leaders have been: A-Engineering and Engineering Economic Aspects, O. W. Israelsen; B-Soil Productivity Aspects, D. S. Jennings; C-Contributing Sociological Aspects, J. A. Geddes; and D-Economic Aspects, W. Preston Thomas.

Bulletin No. 256 - Drainage And Irrigation, Soil, Economic, And Social Conditions, Delta Area, Utah: Division 2: Soil Conditions, D. S. Jennings, J. Darrel Peterson

UAES Bulletins

Project 90-A Study of Factors Influencing the Financial Condition of Certain Utah Irrigation and Drainage Projects-was undertaken in 1928 as an intensified study of local areas. This study was divided among four departments, with a project leader for each particular phase of the study. These four project leaders, guided by the Station Director, have constituted a committee in immediate charge of this project. Subprojects and their respective leaders are: A-Engineering and Engineering Economic Aspects, O. W. Israelsen; B-Soil Productivity Aspects , D. S. Jennings; C- Contributing Sociological Aspects, J. A. Geddes; and D-Economic Aspects, W. Preston Thomas.

Bulletin No. 255 - Drainage And Irrigation, Soil, Economic, And Social Conditions, Delta Area, Utah: Division 1: Drainage And Irrigation Conditions, O. W. Israelsen

UAES Bulletins

Project 90-A Study of Factors Influencing the Financial Condition of Certain Utah Irrigation and Drainage Projects-has been Conducted cooperatively since 1928 by four different departments, each represented by a man in charge of one phase of the problem. These four department representatives have constituted a committee in immediate charge of this project, guided by the Station Director. Subprojects and their respective leaders are: A: Engineering and Engineering Economic Aspects, O. W. Israelsen; B: Soil Productivity Aspects, D. S. Jennings; C: Contributing Sociological Aspects, J. A. Geddes; and D: Economic Aspects, W. Preston Thomas.

Bulletin No. 219 - Twenty-Eight Years Of Irrigation Experiments Near Logan, Utah: 1902-29, Inclusive, D. W. Pittman, George Stewart

UAES Bulletins

Since 1902 irrigation experiments have been a major part of the research activity on the Greenville (Central) Experimental Farm near Logan, Utah. The experiments have been concerned mainly with the effects of different quantities of irrigation water, the minimum water requirement of crops, and the effects of different seasonal distribution of the water. This publication aims to give a brief summary of this work as it relates to crop yields as well as the more recent results up to and including 1929.

Bulletin No. 187 - Irrigation Experiments With Potatoes, F. S. Harris, D. W. Pittman

UAES Bulletins

In a previous bulletin of this station are given the results of an experiment on different irrigation treatments of potatoes continued for five years. In view of the importance of the potato crop and of the importance of having it properly irrigated it was considered advisable to continue the experiment, with certain modifications based on experience, for a further period of five years. This total period of ten years should include most of the climatic variations which are common in this locality, and by eliminating the more unsatisfactory irrigation systems a closer approximation to the best system should be found. …

Bulletin No. 186 - Irrigation Experiments With Sugar Beets, F. S. Harris, D. W. Pittman

UAES Bulletins

A previous bulletin of this station gives the results of an experiment on the irrigation of sugar-beets continuing for five years. Since this experiment was deemed of sufficient importance to merit our best attention and since the climatic conditions which largely determine what is the best irrigation practice may not for so short a period properly represent the average of the community, it was thought advisable to continue the experiment, with certain modifications, for an additional five years. This bulletin reports the results of these last 5-years' work together with such general conclusions as can be drawn from the entire …