Influence of Rotation Sequence on the Optimum Corn and Soybean Plant Population

By P. Pedersen, J. Lauer. Agronomy Journal, 2002

90 citations recorded by the source corpus.

Rotation sequence and plant population are important management considerations for maximum yield. Response of corn (Zea mays L.) and soybean [Glycine max L. (Merr.)] to changes in plant population, rotation sequences, and tillage system was evaluated for 3 yr. Corn was planted in 76-cm rows and had a final plant population of 56 300, 65 800, and 75 200 plants ha -1 ; soybean was planted in 19-cm rows with a final plant population of 294 200, 450 400, and 518 500 plants ha -1 using conventional tillage and no-tillage systems. Both crops were compared in seven rotation sequences. For corn yield there were no interactions of plant population with tillage or rotation sequence. Averaged over years, tillage did not affect corn yield. Corn rotated annually with soybean and first-year corn after 5 yr of consecutive soybean yielded 12% more than continuous grown corn. Corn yields increased 11% as plant population increased from 56 300 to 75 200 plants ha -1 , regardless of tillage or rotation treatment. Averaged over years, no interactions of plant population with tillage or rotation sequence on soybean yield were found. Soybean yields were 8% higher in conventional tillage than in the no-tillage systems. First-year soybean after 5 yr of consecutive corn yielded 8% more compared with the other six rotation sequences. Plant population within the studied range did not affect soybean yield. It was concluded that neither corn-soybean cropping history nor tillage system were important for determining optimum plant population for corn or soybean.

Subfields: Agronomy and Crop Science, Plant Science

View Paper: https://www.semanticscholar.org/paper/f14d1db091b770f0821c45e7f1e1a60531bac521

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Citations in the corpus

The Profitability and Risk of Long-Term Cropping Systems Featuring Different Rotations and Nitrogen Rates (2008, background): “Previous research has demonstrated that when corn is grown in rotation with soybean, it yields greater than CC (Baldock et al., 1981; Crookston et al., 1991; Meese et al., 1991; Porter et al., 1997; Pedersen and Lauer, 2002, 2003).”
Soybean Growth and Development in Various Management Systems and Planting Dates (2004, background): “Genetic and systems can yield as well as conventional tillage systemscultural strategies for increasing soybean yield might be (Pedersen and Lauer, 2002; Pedersen and Lauer, 2003),improved by identifying growth periods where potential sandy soil can yield as well as silt loam soils (Pedersenyield…”
Optimum Plant Population of Bt and Non-Bt Corn in Wisconsin (2006, result): “Pedersen and Lauer (2002) and Bruns and Abbas (2005) found similar results regarding higher plant population effects on lodging percentage.”
Corn and soybean response to rotation sequence, row spacing, and tillage system (2003, methodology): “…that corn grown in 38-cmsimilar results regarding tillage effect on corn grain rows produces higher yield than corn in 76-cm rowsyield, and by Pedersen and Lauer (2002), who did not (Nielsen, 1988; Paszkiewicz, 1996; Porter et al., 1997).observe a tillage effect on corn grain yield in 2 out…”
Light Interception and Yield Potential of Short‐Season Maize ( Zea mays L.) Hybrids in the Midsouth (2005, background): “While physiological tolerance of drought stress 1997; Pedersen and Lauer, 2002) are required for short-is a worthwhile endeavor, it typically involves extensive season hybrids to ensure rapid canopy closure and fullinvestigation of physiological processes, identification of light interception…”
Tillage and Crop Rotation Effects on Corn Agronomic Response and Economic Return at Seven Iowa Locations (2015, unknown): “, 2013) or overlook the year-to-year variability (Pedersen and Lauer, 2002; Porter et al., 2003).”