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Verification Program | Gerneral Agronomics of Corn and Sorghum | Diseases | Insects | Fertility | Irrigation Weed Control | Other Crop Projects | Human Health | Animal Projects


Research Verification Program…The Research Verification Program is an interdisciplinary effort between growers, county Extension agents, Extension specialists, and researchers. The Research Verification Program is an on-farm demonstration of all the research-based recommendations required to grow corn and grain sorghum profitably in Arkansas.

Economic Analysis of Corn and Grain Sorghum Production Practices… This project provides crop enterprise budgets for corn and grain sorghum that are flexible for representing alternative production practices of Arkansas producers. Crop enterprise budgets are developed with methods that are consistent over all field crops.

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Corn Production Systems in Arkansas …This study evaluated a number of corn production practices in Arkansas including starter fertilizers, insecticides, rotations, and hybrid response to Aflatoxin contamination.

  • 2001 Results
  • 2000 Results – (Results Not Available)
  • 1999 Results – (Results Not Available)

Planting Date Guidelines for Corn and Sorghum…Develops a yield response curve based on planting date for corn and grain sorghum. Additionally, the study evaluates impact of Bt technology when planting later than desired.

Improved Use of Soybean, Wheat, and Corn in Rice Rotations…The objectives of this project were to: 1. Provide a set of management guidelines that farmers can use to assist them in maintaining their profitability should they change their rotations. 2. Explore the potential of using short-duration rice, soybean, wheat, and corn varieties in a range of crop rotations. 3. Measure the effects of fertility levels and crop sequences on pest and disease incidence in existing and new rotations. 4. Explore the use of conservation tillage in a range of rotations. 5. Determine the feasibility of using corn in rice based cropping systems. 6. Test existing cropping systems models that include the crop species used in this study.

Improving Technology Transfer for Profitable Corn and Grain Sorghum Production...This study looks at the effect of twin row vs single row and plant populations on corn yields. Additionally, the program looked at the benefits of seed treatments on corn and sorghum, as well as other production practices like afla-guard.

Increasing Grain Sorghum Productivity by Maximizing Land Use…This study asses grain sorghum yield potentials at varying planting arragements, and compares hybrid response to varying nitrogen levels. Finally, the study demonstrates grain sorghums response to irrigation with test for full irrigation, dryland, and one irrigation at boot stage and heading.

Management Practices to Increase Grain Sorghum Productivity…This study looked at optimum plant populations for maximum yield under irrigated and dryland grain sorghum production systems and determined the effect of starter fertilizer on grain sorghum yield.

Evaluation of High Yield Practices to Increase Corn & Grain.... This study was to compare yield of corn and grain sorghum using current extension recommendations to a high yield system that is utilized by some yield contest winners.

Extension Short Courses.... This program will host and teach a two-day short course to international potential grain and other US agriculture product buying and tour groups, in collaboration with industry, governement and university partners.

Developing Profitable Irrigated Rotational Cropping Systems.... Evaluate grain yield and resulting economic response for eight crop rotations. Monitor how nematodes and foliar diseases change over time based on crop rotation.

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A Potential New Method to Control Aflatoxin in Corn… This study is working to create a transgenic corn line that is resistant to Aflatoxin. The project is using gene insertion to add a new gene form the hyacinth bean that will inhibit the Aflatoxin spore germination.

Assessment of the Importance of Nematodes and Foliar Disease in Corn… This study looks to determine the yield loss associated with root-knot nematodes and foliar diseases in field corn and evaluate corn hybrids for resistance to root-knot nematodes and foliar diseases

Bio-Control Option for Control of Aflatoxin in Corn… Although Afla-Guard is now registered for use in corn, little research has been conducted in Arkansas prior to this project regarding the product’s effectiveness at reducing aflatoxin development in our environmental conditions, optimum application methods, timing of application, and economical benefit or return.

Developing Guidelines for Foliar Fungicide Use in Field Corn to Control Southern Rust and Other Leaf Diseases… This project evaluates the economic benefit of preventative foliar fungicide applications on different corn hybrids

Impact of management practices and disease resistance on the incidence and severity of diseases of corn and grain sorghum… This project surveyed and identified the important diseases of corn and grain sorghum, and screened potentially useful hybrids for resistance to the important diseases. Additionally, it determined the effect of rotations, fungicides and irrigation methods on development and severity of diseases.

Improved Corn Productions Through Improved Grower Selection of Corn Hybrids and Better Management … Three common Bt hybrids were planted in April and May at the Marianna Research Station, and were evaluated for the impact of corn borers.

Management of Grain Sorghum Diseases in Arkansas…The objective of this study is to determine impact of diseases and screen hybrids and cultivars of grain sorghum and sweet sorghum for resistance to the diseases. Additionally, it will determine if biologically based fungicides (based on Trichoderma) can reduce disease losses, and gather information on the interactions of pathogens and strains of pathogens with Trichoderma on grain sorghums at the genomic levels.

Remote Sensing of Stress Areas in Corn Fields to Prevent Aflatoxin…The objective of this study was to determine the ability of remote sensing technology to detect and allow mapping and inspection of stressed areas in commercial corn fields under different production systems. Secondly, it would to determine the level of aflatoxin and fumonisin contamination, as well as yield potential, of remote-sensed and GPS-mapped stressed corn areas, compared to non-stressed areas of commercial corn fields

Screening Sorghum Varieties for Resistance to Anthracnose and other Foliar Diseases… This study surveyed diseases of sorghum in Arkansas, screened hybrids for resistance to anthracnose, and tested cultivars for resistance.

  • 2001 Results
  • 2000 Results – (Results Not Available)
  • 1999 Results – (Results Not Available)

Assessment of the Occurrence and Distribution of Mycotoxins..... To identify which mycotoxins are most prevalent and potentially problematic in Arkansas sorghum production systems. 

Management of Southern Rust on Threshold-Based Crop Protection...... Develop practical guidelines for a threshold based fungicide program for southern rust of corn.

Comparison of Spatial Dynamics of Root-Knot Nematode...... To determine the value of adding grain sorghum to a corn/soybean rotation by using a whole system assessment of spatial changes in RKN activity and potential interactions with other diseases and deficiencies.

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Evaluating the Length of Residual Activity and Rain-fastness of Recommended Foliar Insecticides against Southwestern Corn Borers

Evaluation of Bt Corn Hybrids… The objectives of this study are: 1. to determine the effectiveness of new Bt corn hybrids against ear feeders (corn earworm and fall armyworm) in Arkansas, 2. To determine the yield loss caused by ear feeders in field corn in Arkansas, 3. To monitor the development of resistance in southwestern corn borer to Bt corn technologies.

Improvement of insect Management Programs for Arkansas Field Corn… The objective of this study is: 1. to determine the effects of new BT field corn lines on corn borers, corn earworm and fall armyworm, 2. To improve insect management systems for conventional field corn in Arkansas.

Management w/Seed Treatments and Standard at Planting Insecticides... This project evaluates the profitability of corn and grain sorghum insect management with seed treatment and standard at-planting insecticides,

Use of Integrated Pest Management to Improve Corn and Grain Sorghum Production… This study looks to evaluate the impact of insects on conventional and Bt corn, as well as develop a management system for early season control.

Evaluation of High Rates of Insecticides...... Plots containing the various seed treatment rates for corn and grain sorghum for the effectiveness of seedling pests.

Insect Control in Grain Sorghum..... Insect pest education and selecting insecticides for control of corn earworm and other insect pests of Grain Sorghum.

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Can Arkansas Corn Growers Increase their Profit Margin by Using Agrotain?... This project evaluated the potential of a synthetic urease inhibitor (Agrotain) for reducing N losses (ammonia volatilization) from the surface applied urea. Field studies were conducted to evaluate the effect of urea and urea treated with Agrotain on corn grain yield, leaf N concentration, and grain N uptake.

Can Arkansas Corn Growers Use Chlorophyl Meter to Improve Nitrogen Use Efficiency?... This project evaluates the potential for using a chlorophyl meter (CM) as a decision-aid tool for in-season application of nitrogen (N) fertilizer. The Minolta chlorophyl meter (CM) is an easy-to-use, affordable, handheld spectrophotometer, that is capable of measuring an index of plant chlorophyl content which is related to plant N content. The growers will benefit from development and availability of a new, rapid and reliable tool to apply N only when there is a likelihood of an increase in corn yield and profit margins.

Improving Economic Efficiency of Corn Production in Arkansas by Evaluating New Soil Testing Methods for Predicting Nitrogen Fertilizer Requirements…the pre-sidedress soil nitrate test (PSNT) and amino sugar N test (ASNT) have shown the potential for identifying soils that will not respond to additional N application and/or predicting optimum N application rates. The objective of the studies reported here were to evaluate the response of corn grain yield to varying rates of sidedress N fertilizer. Data collected in this study will serve as a scientific database for correlating and calibrating the PSNT and ASNT for improving corn fertilization in Arkansas.

Increase Profitability of Corn Production by Improving Phosphorus and Potassium Fertilizer Recommendations… For corn production under cropping conditions in Arkansas this study will evaluate: 1. The effect of phosphorus (P) fertilizer application rates on corn grain yield, 2. The effect of potassium (K) fertilizer application rates on corn grain yield, 3. The suitability of corn ear-leaf and young plants for predicting plant P status, 4. The suitability of corn ear-leaf, young plants for predicting plant K status, 5. Phosphorus fertilizer use efficiency, 6. Potassium fertilizer use efficiency.

Improving Nitrogen Fertilizer Efficiencies… Controlled-release fertilizers represent a significant portion of the fertilizer industry and are widely used in the Upper Midwest. To better understand the ability of these products to perform under Arkansas production practices, experiments have been established on one producer field and one experiment station. These studies were designed to compare the efficacy of ESN (Environmentally Smart Nitrogen) to standard urea over a series of rates and application times.

Optimizing Soil Fertility Requirements for Corn… This study evaluates current recommendations, and looks to improve those recommendations to increase yield or reduce fertilizer inputs.

Site-specific determination of in-season corn nutrient and pH variability under Arkansas conditions…The objectives of this study are to: 1. evaluate pattern of change in active remote sensor data collected at various growth stages under different tillage regimes, 2. assess the ability of active remote sensing data to be used as the basis for site specific application of nitrogen to corn under different tillage regimes, 3. evaluate the potential use of a newly developed soil pH sensor to characterize the variability in soil pH.

Field Scale Evaluation of Precision Ag Sensors for Corn Production.... The goal of this proposal is to develop field based recommendations using a systems approach to precision agriculture sensors.

Developing Best Management Practices for N Fertilization..... Producer profitability is the focus of these research projects and centers around identifying the most efficient and economical use of N fertilizer inputs.

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Improving Corn Irrigation Practices and Recommendations in Arkansas… The objectives of this study are to: 1. develop a new crop coefficient curve for irrigation scheduling of corn and determine whether the curve needs to be adjusted for maturity of the particular hybrid grown, 2. Field test the resulting Irrigation Scheduler program for corn, 3. Conduct on-farm tests and demonstrations of irrigation-related production practices.

Irrigation Scheduling for Corn Production.... Determining irrigation based on deficits reached in corn production.

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Development of Effective Weed Control Programs in Grain Sorghum with Crop Safety.. This study evaluates new weed treatment programs for sorghum, as well as new chemicals that become available.

Weed Control Programs in Arkansas Corn… This study evaluates new weed treatment programs for corn, as well as new chemicals that become available.

Alternative Weed Control Programs in Transgenic Varieties

Application Technology Demonstration and Education for Arkansas Crops.... The advent of new herbicide technology/trait release such as Dicamba and 2, 4-D tolerance in cotton and soybean has raised new issues regarding proper application methods, technology and sprayer cleanout.

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Evaluation of White Sorghum Hybrids…Evaluate yield potential of white food grade grain sorghum hybrids compared to standard hybrids currently being grown. Determine if white grain sorghum hybrids have desirable agronomic traits and resistance to diseases commonly found in Arkansas, and evaluate white grain sorghum quality compared to hybrids currently being grown.

Discovery Farms…The Arkansas Discovery Farm program is currently collecting water quantity and quality data from both inflow from rain and irrigation and in outflow as runoff from four row crop farms , one in Arkansas County near Stuttgart (Corn, rice and soybeans), one in Desha County near Dumas (Cotton and Corn), and two in Cross County near Cherry Valley (Rice and soybean). Data in 2012 was collected from one rice field, four soybean fields and four cotton fields. A fifth row crop farm has been instrumented near Atkins and monitoring will begin in the Spring of 2013.

Practicality Evaluations of Grain Storage Techniques… The increase in corn acreage has mandated that much of the annual crop be handled, dried, and stored on farm. There are a large number of on farm bins that are utilized for this. Corn bags were utilized extensively in 2007-2009. However, limitations associated with bags point to the potential advantages of dryers and bins. General management procedures for on-farm handling, drying, and storing will help growers better manage their harvest options and capitalize on additional marketing alternatives. Collected bag, bin, and dryer data from cooperating Arkansas farms and sources from neighboring states were used to meet the objectives below.

Smartphone Apps for Corn and Grain Sorghum Producers…

Ultra-Short Season Corn Hybrid Evaluation…The objective of this research is to evaluate a wide range of corn-hybrid maturities (78 to 120 days) at several locations in Arkansas for agronomic and economic potentials and promote interest among seed companies for developing earlier maturing hybrids specifically for the Midsouth.

Development of an On-Line Course.... To develop a high quality on-line course that teaches the history, principles, benefits and risks of biotechnology as pertaining to modern crop production using corn as the model crop.

Development of Effective Strategies for Simultaneously Drying and Decontamination of Corn to Maintain Quality.... The goal of this research is to develop effective strategies to achieve simultaneous drying and decontamination of corn while maintaining product quality and prevent mycotoxins.

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Anti-Diabetes Efficacy of a Sorghum Starch in Humans… About 35% of U.S. adults aged 20 years or older had pre-diabetes in 2005-2008 and about 11% of people with pre-diabetes developed type 2 diabetes each year. There is growing interest in researching functional carbohydrates to improve human health such as lower blood glucose, decreased insulin release, increased satiety, and weight control. This study will characterize the functional starch contents of grain sorghum and prepare the sorghum muffin for a human feeding study, and assess the functionality of consuming grain sorghum muffins to ameliorating blood glucose and insulin levels in people with pre-diabetes

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Catfish Feeding Trials…The goal of this project is to determine the effects of diets with solvent-extracted distillers dried grains with solubles (SE-DDGS) or corn gluten feed (CGF) on production performance, processing traits, and profitability of channel catfish production.

Evaluation of Low-Tannin Sorghum in Broiler Chicken Diets.... Demonstrate that low-tannin grain sorghum is an acceptable substitute for corn in nutritionally balanced diets for growing broilers.

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Wheat CBOT May '17 422'6 424'6
Corn CBOT May '17 360'4 359'2
Soybeans CBOT May '17 938'4 941'6
Rice CBOT May '17 10210 10220
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Corn Apr 3.55 Apr 6 17
Corn Oct 3.65 Apr 6 17
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Corn Oct 3.65 Apr 6 17
Soybeans Apr 9.25 Apr 6 17
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