424

Responsiveness to Soil Phosphorus and Arbuscular Mycorrhizal Fungi by Striga-Susceptible and Striga-Resistant Sorghum Genotypes.

Alicia B. Leytem, Oregon State University; Jennifer L. Parke, Oregon State University

127-2

425

Improving Poultry Waste Nitrogen Use Efficiency In Wheat Production.

Canon Engoke, North Carolina State University Agronomy Club; Carl Crozier, NC State Univ. Soil Science Dept; Thomas Smyth, North Carolina State University; Deanna Osmond, Dept. of Soil Science/North Carolina State University

127-3

426

Local Reference: An Approach for Site-Specific Nitrogen Fertilization Using Active Canopy Sensors.

Luciano S. Shiratsuchi, University of Nebraska - Lincoln; Richard B. Ferguson, University of Nebraska - Lincoln; John Shanahan, Pioneer Hi-Bred International, Inc.; Viacheslav Adamchuck, McGill University; Dennis Francis, ARS / USDA; Michael R. Schlemmer, ARS / USDA; Brian Krienke, University of Nebraska - Lincoln

127-4

427

Enhanced Efficiency Phosphorus Application for a Corn-Soybean Rotation.

Christopher Dudenhoeffer, University of Missouri; Kelly Nelson, Center for Agroforestry, University of Missouri; Peter Motavalli, University of Missouri; Bruce Burdick, University of Missouri; David Dunn, University of Missouri

127-5

428

Comparison of Soil pH Measured In Water and Calcium Chloride to Predict Crop Response to Lime In Iowa.

Agustin Pagani, Iowa State University; Antonio P. Mallarino, Iowa State University

127-6

429

Estimating Availability of Applied K In K-Fixing Soils.

Gordon Rees, University of California, Davis; Randal Southard, UCD; G. Stuart Pettygrove, University of California-Davis

127-7

430

Evaluation of Growth, Yield, Water and Nitrogen Balance in Rice �Maize Rotation Grown Under Aerobic and Flooded Irrigation Conditions in Semi-Arid Tropics.

Dakshina Murthy Kadiyala, University of Florida; Yuncong Li, Tropical Research and Education Center, University of Florida; Rao Mylavarapu, University of Florida; Devender Reddy Metuku, ANGRAU

127-8

431

Effects of Biosolids Types On Nitrogen Availability Under Varying Tillage Practices.

Jinling Li, Virginia Tech; Gregory Evanylo, Virginia Tech; Xunzhong Zhang, Virginia Tech

127-9

432

Redox Potential Changes As Related to Greenhouse Gas Emissions in Arkansas Rice Soils.

Christopher Rogers, University of Arkansas; Kristofor Brye, University of Arkansas; Trenton Roberts, University of Arkansas; Richard Norman, University of Arkansas; Anthony Fulford, University of Arkansas

127-10

433

Usefulness of Leaf Greeness Intencity to Determine Sulfur Status of Corn.

Agust�n Pagani, Iowa State University; Hern�n E. Echeverr�a, National University of Mar del Plata - INTA Balcarce, Argentina

127-11

434

Soil N Dynamics As Affected by Band-Injected UAN with and without Instinct� Nitrogen Stabilizer.

Blucher Menelas, Purdue University; Brad Joern, Purdue University; James Camberato, Purdue University

127-12

435

Phosphorus Determination In Long-Term No-Tillage Rotation Study.

Catherine Fleming, Virginia Polytechnic Institute and State University; Mark Reiter, Virginia Polytechnic Institute and State University; Rory Maguire, Virginia Tech; Jason Warren, Oklahoma State University; Steve Phillips, International Plant Nutrition Institute

127-13

436

Nitrogen Partioning and Budget Assessment for Potato Cultivation: Environmental Implications.

Rishi Prasad, University of Florida; George Hochmuth, University of Florida; Christopher Martinez, University of Florida

127-14

437

Comparison of Exactrix and Conventional Fertilizer Application In Corn.

Jacob Becker, Texas AgriLife Research and Extension Service; Brent Bean, Texas AgriLife Research and Extension Service; Mark McFarland, Texas A&M University; Tony Provin, Texas A&M University

127-15

438

Rootworm Resistant Hybrids Increase Removal of Mineral Nutrients Compared to Non-Resistant Isolines.

Ross R. Bender, University of Illinois Department of Crop Sciences; Jason Haegele, University of Illinois Department of Crop Sciences; Matias Ruffo, Mosaic Company; Frederick Below, University of Illinois Department of Crop Sciences

127-16

439

Compost Impacts On An Irrigated Potato Production System.

Alexander Lindsey, Michigan State University; Karen Renner, Michigan State University; Wesley Everman, North Carolina State University

127-17

440

By-Plant Nitrogen Fertilization In Maize (Zea mays L.) Using Normalized Difference Vegetation Index.

Jeremiah Mullock, Oklahoma State University; BeeKhim Chim, Oklahoma State University; Jonathan Kelly, Oklahoma State University; Guilherme Torres, Oklahoma State University; Bill Raun, Oklahoma State University

127-18

441

Counting Fired Leaves: A Potential Method for Evaluating Nitrogen Sufficiency In Grain Sorghum.

Antonio R. Asebedo, Kansas State University; David Mengel, Kansas State University

127-19

442

Determination of Poultry Litter's Nitrogen-Fertilizer Value for Winter Wheat Production.

Brett L. Gordon, University of Arkansas; Nathan Slaton, University of Arkansas; Colin Massey, University of Arkansas; Russell DeLong, University of Arkansas

127-20

443

Effect of Seed Distribution and Population On Maize (Zea mays L.) Grain Yield.

Bee Khim Chim, Oklahoma State University; William Raun, Oklahoma State University; Jeremiah Mullock, Oklahoma State University; Emily Ruto, Oklahoma State University; Kevin Waldschmidt, Oklahoma State University; Guilherme Torres, Oklahoma State University; Yesuf Mohammed, Oklahoma State University; Natasha Macnack, Oklahoma State University

127-21

444

Availability of Phosphorus In Manure From Beef Cattle Feedlot Systems Evaluated by Soil Testing.

Nicolas E. Dagna, Iowa State University; Antonio P. Mallarino, Iowa State University; Mazhar U. Haq, Iowa State University

127-22

445

Nitrogen and Sulfur Fertility Effect On Canola (Brassica napus) Protein Content and Fatty Acid Profile.

Ashley Hammac, Washington State University; William Pan, Washington State University; Richard Koenig, Washington State University; Ian Burke, Washington State University

127-23

446

Potassium Uptake, Removal, and Recycling with Residue In Corn and Soybean.

Ryan R. Oltmans, Iowa State University; Antonio P. Mallarino, Iowa State University; Carlos X. Villavicencio, Iowa State University

127-24

447

Nitrogen Transformations In Broiler Litter As Affected by Relative Humidity.

Kate B. Cassity, Univeristy of Georgia; Miguel Cabrera, Univeristy of Georgia; David Kissel, Univeristy of Georgia; Jason Mowrer, Univeristy of Georgia

127-25

448

Nitrogen Use Efficiency of Biomass Grasses Using Chemical and Organic Nitrogen Fertilizers.

Lucia Acosta-Gamboa, Arkansas State University; V. Steven Green, Arkansas State University

127-26

449

Improving Manure Management to Balance Nitrogen Use Effeciency and Environmental Trade-Offs.

Emily Duncan, Pennsylvania State University; Curtis J. Dell, USDA-ARS; Peter Kleinman, USDA-ARS; Douglas Beegle, The Pennsylvania State University; Heather Karsten, Pennsylvania State University

127-27

450

Precision Agroecology: Management of Wheat Density to Optimize Nitrogen and Water Use.

Tabitha T. Brown, Washington State University; David Huggins, USDA-ARS; C. Kent Keller, Washington State University; Jeff Smith, USDA-ARS; Chad Kruger, Washington State University

127-28

451

Sensing Soybean Canopy Development Responses to P and K Nutritional Stress.

Martin Navarro, University of Kentucky; John H. Grove, University of Kentucky; Chad D. Lee, University of Kentucky

127-29

500

Using An Active Optical Sensor to Improve Nitrogen Management In Corn Production.

Donato Titolo, University of Kentucky; John H. Grove, University of Kentucky; Greg J. Schwab, University of Kentucky

127-30

501

Mineral Nutrient Recovery From Pyrolysis Systems.

Jatara Wise, Texas A&M University; Donald Vietor, Texas A&M University; Tony Provin, Texas A&M University; Derek H. Husmoen, Texas A&M University; Matthew Keough, Texas A&M University; Sergio Capareda, Texas A&M University; Clyde Munster, Texas A&M University; Akwasi Boateng, Eastern Regional Research Center, ARS-USDA

127-31

502

Distillers Dried Grains Impacts on Laying Hen Phosphorus Excretion and Phosphorus Transformations During Litter Storage.

Branly Eugene, Purdue University; Brad C. Joern, Purdue University; Todd J. Applegate, Purdue University

127-32

503

Quantifying the Relationship Between Soil P Measures and P Loss by Runoff for Manitoba Soils Under Field Conditions.

Daniel Rheault, University of Manitoba; Donald Flaten, University of Manitoba; Wole Akinremi, University of Manitoba; Gordon Goldsborough, University of Manitoba

127 S4-S8 Graduate Student Poster Competition