Journal of Soil Science & Plant Health

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Jarrod T. Hardke Author

jarrod@gmail.com

Subjects of specialization
Biological sciences

Affiliation
Rice Research and Extension Center, University of Arkansas Division of Agriculture, Stuttgart, AR, USA

Biography

Jarrod T. Hardkee, Department of Crop, Hydrogen sulfide (H2S) toxicity is a poorly understood physiological disorder that occurs under anaerobic conditions and can cause substantial yield loss in rice (Oryza sativa L.). Though the reduction of sulfate (SO42-) to H2S is the causes of toxicity, there are many factors that influence the extent to which this occurs. Soil, and Environmental Sciences at the University of Arkansas, Fayetteville, AR, US

Publications

Research Article Open Access

Effect of Ammonium Sulfate Fertilizer Additions on Hydrogen Sulfide Toxicity

Author(s):

Julia M. Fryer, Trenton L. Roberts, Yeshi Wamishe, Jarrod T. Hardke and David M. Miller

Abstract: Hydrogen sulfide (H2S) toxicity is an increasingly problematic physiological disorder reported in certain Arkansas rice (Oryza sativa L.) fields. Though the exact causes of this disorder are unknown, one contributing suspect is use of ammonium sulfate (NH4)2SO4 fertilizer. A greenhouse study was designed to investigate the physical and chemical differences in four soils in Arkansas where this disorder regularly occurs (H and HR-Y) and never has been reported (HR-N and PTRS) and to investigate the effects of different rates of (NH4)2SO4 fertilizer on those soils. According to the Mehlich 3 soil test report, few major differences were present between soils prone to H2S toxicity and those that are not. With Zn deficiencies appearing in PTRS and HR-N, several fact... view more»

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