Research Brief
Amino Iron on Tall Fescue
Study:
Tall fescue color response following Amino Iron application at 1, 1.5, and 2 lb per acre on a 28-day interval.
Auburn, Alabama Auburn, Alabama Collaborator: Dr. Beth Guertal Date: January – April 2022 Summary: Dr. Beth Guertal January – April 2022 Location:
Study:
Tall fescue color response following Amino Iron application at 1, 1.5, and 2 lb per acre on a 28-day interval.
Location:
Collaborator:
Date:
T he study was conducted by Dr. Beth Guertal at Auburn University on a recently established stand of ‘Rebel type’ tall fescue maintained at lawn height. Study design was a randomized complete block with four replications. Treatments consisted of a nontreated and Amino Iron applied a 1, 1.5, or 2 lb per acre on 11 January, 8 February, and 11 March. All treatments included Harrell’s SprayMAX® Nonionic Penetrant Plus as an adjuvant. Treatments were applied using a backpack CO 2 sprayer. Relative turfgrass color was assessed at 24 hours, 3 (or 5), 7, 14, 21, and 28 days after each application using a 1-9 scale where 1 represented dead or completely brown turf and 9 represented dark green, lush, and highly uniform turf. Amino Iron applied at 2 lb per acre enhanced tall fescue color relative to the nontreated on 11 out of 13 rating dates following the second application. The study was conducted by Dr. Beth Guertal at Auburn University on a recently established stand of ‘Rebel type’ tall fescue maintained at lawn height. Study design was a randomized complete block with four replications. Treatments consisted of a nontreated and Amino Iron applied a 1, 1.5, or 2 lb per acre on 11 January, 8 February, and 11 March. All treatments included Harrell’s SprayMAX Nonionic Penetrant Plus as an adjuvant. Treatments were applied using a backpack CO 2 sprayer. Relative turfgrass color was assessed at 24 hours, 3 (or 5), 7, 14, 21, and 28 days after each application using a 1- 9 scale where 1 represented dead or completely brown turf and 9 represented dark green, lush, and highly uniform turf. Amino Iron applied at 2 lb per acre enhanced tall fescue color relative to the nontreated on 11 out of 13 rating dates following the second application.
Summary:
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Nontreated Amino Iron 1 lb + NIPP Amino Iron 1.5 lb + NIPP Amino Iron 2 lb + NIPP
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Figure 1. Tall fescue color following application of Amino Iron at 1, 1.5, or 2 lb per acre on a 28-day interval. DAT = Days After Treatment. Auburn, AL. Tall fescue color following application of Amino Iron at 1, 1.5, or 2 lb per acre on a 28-day interval. DAT = Days After Treatment. Auburn, AL.
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5105 New Tampa Highway, Lakeland, FL 33815 For additional product information, call toll-free 1-800-282-8007 Not all products are registered in all states. (c) 2022 Harrell’s
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