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ARS Home » Southeast Area » Auburn, Alabama » Soil Dynamics Research » Research » Publications at this Location » Publication #378957

Research Project: Enhancing Production and Ecosystem Services of Horticultural and Agricultural Systems in the Southeastern United States

Location: Soil Dynamics Research

Title: Predicting soil carbon and nitrogen stocks under no-till soybean-corn amended with FGD gypsum and cover crops

item ISLAM, KHANDAKAR - The Ohio State University
item SHEDKAR, VINAYAK - The Ohio State University
item RAUT, YOGENTRA - Air Force Institute Of Technology, Afit
item BANDAOGO, ALIMA - Institute Of Environmental And Agricultural Research - Burkina Faso (FORMERLY: UPPER VOLTA)
item Gonzalez, Javier
item Watts, Dexter
item Flanagan, Dennis
item Vantoai, Tara
item Fausey, Norman
item BATTE, MARV - University Of Kentucky
item DICK, WARREN - The Ohio State University

Submitted to: American Society of Agronomy Meetings
Publication Type: Abstract Only
Publication Acceptance Date: 11/10/2019
Publication Date: 11/10/2019
Citation: Islam, K.R., Shedkar, V.S., Raut, Y., Bandaogo, A.A., Gonzalez, J.M., Watts, D.B., Flanagan, D.C., Vantoai, T.T., Fausey, N.R., Batte, M., Dick, W.A. 2019. Predicting soil carbon and nitrogen stocks under no-till soybean-corn amended with FGD gypsum and cover crops [abstract]. American Society of Agronomy Meetings. CD ROM.

Interpretive Summary:

Technical Abstract: Field experiments were established on 2011 simultaneously at Shorter in east-central Alabama; Farmland in east-central Indiana; Hoytville in northwest Ohio; and Piketon in southern Ohio. A factorial experiment (3 FGD-gypsum rates x 3 cropping diversity x 2 cover crops) in randomized complete block design with four replications was established at all locations. The FGD-gypsum rates were 0 (control), 1000 and 2000 kg/ha, respectively, which were broadcasted. The cropping diversity included continuous soybean, soybean-corn, and corn-soybean rotations with- and without cereal rye as a cover crop. Each replicated plot was 10-m long by 7-m wide with a 1-m buffer between plots. Cereal rye @ 60 kg/ha was drilled after harvesting corn or soybeans followed by chemical termination in mid-April and planting of corn or soybeans in the 2nd week of May. All the plots received the same standardized cultural practices such as chemical fertilizers and herbicides annually for their respective crops. While 150-100-100 kg N-P-K/ha was applied for corn, 0-100-100 N-P-K/ha was applied for soybeans. The experiment was repeated until 2016.