Advancing Intensive Management of Corn Systems in Minnesota (Irrigated)

This project is focused on high-yield continuous corn systems - Irrigated.

IPNI-2013-USA-GM65

Overview

This project is focused on high-yield continuous corn on irrigated sands. The objectives are to determine: The yield levels possible on irrigated sands in central 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:2015

Year of completion:?

Map:

Interpretive Summary

2017

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 an irrigated sand (Becker, MN) and maximum corn yield in this study averaged 220 bu/A. Removing 40% of corn residue prior to tillage in the previous fall, coupled with a longer-season hybrid (103 vs. 97 day) and a greater planting rate (41,000 vs.

2016

In 2014, an experiment was established on an irrigated loamy sand Mollisol in central Minnesota near Becker. Maize was produced continuously. 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 experiment compared farmer practice (FP) and ecological intensification (EI) management systems, developed in consultation with researchers, crop advisers, and farmers.