Advancing Intensive Management of Corn Systems in Minnesota (Rainfed)

This project is focused on high-yield continuous corn systems - Rainfed

IPNI-2013-USA-GM51

This project is focused on high-yield continuous corn systems. The objectives are to determine: The yield levels possible in Minnesota. How far current production is from that which is possible. How the performance of a management system that integrates current scientific knowledge compares to current farmer practices. If current university recommendations are capable of attaining and maintaining yields at levels close to yield potential. Read more


Year of initiation:2013
Year of completion:?
Map:

Interpretive Summary

Two Global Maize sites are located in Minnesota. The objective for both is to assess the potential of advanced fertilizer and crop management practices for increasing the yield and nitrogen (N) use efficiency of continuous corn. This site is a high-productivity, tile-drained, clay loam soil (Waseca, MN) with maximum corn yield in this study averaging 222 bu/A.

In 2013, an experiment was established on a rain-fed, tile-drained clay loam Mollisol in south-central Minnesota, USA, near Waseca. Maize was produced continuously, and a disk-rip tillage system was used. Sulfur (S) was applied pre-plant at 17 kg S/ha, and a solution of nitrogen (5 kg N/ha) and phosphorus (18 kg P2O5/ha) was applied in-furrow during planting.

The objective of this study is to assess the potential of advanced fertilizer and crop management practices for increasing the yield and N use efficiency of continuous corn. This site has a highly productive tile-drained, clay loam soil. Maximum corn yield in this study was 233 bu/A in 2013, 156 bu/A in 2014, and 242 bu/A in 2015. High-yield management practices, including removing 40% of corn residue prior to tillage in the previous fall, a longer-season hybrid (104 vs.

Two Global Maize sites exist in Minnesota: 1) a high-productivity, tile-drained, clay loam soil in Waseca, Minnesota (2013 to 2014), and 2) an irrigated sandy soil in Becker, Minnesota (2014). The objective for both is to assess the potential of advanced fertilizer and crop management practices for increasing the yield and N use efficiency of continuous corn. Timely rainfall in Waseca during 2013 produced corn yields ranging from 193 to 233 bu/A.

This experiment was conducted on a Mollisol in a continuous maize system to determine yield differences between farmer practice (FP) and ecological intensification (EI) management. The FP standard was determined through discussions with growers, crop advisers and researchers.

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Updates & Reports

2013

Project Description