Long-term tillage and crop rotation effects on soil, yield and economic returns

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2016-12-01
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Al-Kaisi, Mahdi
Kwaw-Mensah, David
Archontoulis, Sotirios
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Proceedings of the Integrated Crop Management Conference
Iowa State University Conferences and Symposia

The Iowa State University Integrated Crop Management Conference is Iowa's premier crop production education event. No other program in Iowa brings together the diverse range of topics, slate of expert presenters and results of the latest University research.

The ICM Conference offers workshops focusing on the latest in crop production technology. Experts from Iowa and surrounding states will provide research updates and results in soil fertility, soil and water management, crop production and pest management.

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Corn (Zea mays L.) and soybeans (Glycine max (L.) Merr.) are major annual crops grown in yearly rotation in Iowa. The economic returns of both crops with different tillage systems and crop rotations are highly influenced by regional soil and climate conditions. This study was conducted at seven locations in Iowa from 2003 to 2013 with the objectives to: (i) investigate seasonal variability in corn and soybean yields as affected by tillage and crop rotation, (ii) identify appropriate tillage system for each crop rotation and location, and (iii) evaluate the magnitude of crop rotation effect on the yields and economic returns of both corn and soybean.

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