@article{gross_vann_brown_formella_gibbs_gurganus_heiniger_hurry_jordan_leary_et al._2021, title={Agronomic management of early maturing soybeans in North Carolina}, volume={9}, ISSN={["2374-3832"]}, DOI={10.1002/cft2.20122}, abstractNote={AbstractInterest in producing indeterminate, early maturing soybean [Glycine max (L.) Merr.] varieties [maturity group (MG) ≤IV] has increased in the southeastern United States as producers seek ways to increase soybean yields. The objective of this experiment was to generate agronomic management recommendations for early maturing soybean varieties across the southeastern United States and compare these management recommendations to historical recommendations for later‐maturing varieties through identification of the optimal seeding rates, row spacing, planting dates, and fertility management. Experiments were conducted across North Carolina at seven environments in 2018 and at four environments in 2019. Two MGs were used in this study: MG III and MG IV. Data on soybean yield and soybean seed quality were collected. Row spacing recommendations were similar to recommendations for later‐maturing varieties with narrow rows providing a 7.3 bu acre–1 yield advantage across environments on average, with more pronounced yield advantages in high‐yield environments. Seeding rate impacted soybean yield but not seed quality. An economic analysis was conducted for seeding rate, suggesting that 80,000 to 120,000 seeds per acre will optimize both profit and yield across environments with May planting. Planting date sometimes impacted yield and seed quality, suggesting that earlier planting with these varieties could be critical to optimizing soybean yield and seed quality. Fertility applications at R1 (beginning of flowering) did not have an impact on soybean yield or seed quality.}, journal={CROP FORAGE & TURFGRASS MANAGEMENT}, author={Gross, MaKayla Raquel and Vann, Rachel and Brown, Austin and Formella, Adam and Gibbs, Andrea and Gurganus, Rod and Heiniger, Ryan and Hurry, Jarette and Jordan, David and Leary, Matthew and et al.}, year={2021}, month={Sep} }
 @article{matcham_vann_lindsey_gaska_lilley_ross_wright_knott_lee_moseley_et al._2021, title={Foliar fertilizers rarely increase yield in United States soybean}, ISSN={["1435-0645"]}, DOI={10.1002/agj2.20889}, abstractNote={AbstractFarmers have been interested in using foliar‐applied nutrient products to increase soybean [Glycine max (L.) Merr.] yield since at least the 1970s, despite limited evidence that these products offer consistent yield increases when used prophylactically. Recently, interest in foliar fertilizer products for soybean production has been renewed, likely related to elevated soybean prices. Over the 2019 and 2020 growing seasons (46 site‐years), agronomists in 16 states collaborated to test six foliar nutrient treatments (commercial mixtures of macro‐ and micro‐nutrients) on soybean grain yield and composition. Soybean grain yield and composition differed among sites but not among foliar fertilizer treatments. Results show that prophylactic foliar fertilization is likely to decrease the profitability of soybean production. Foliar fertilizer products tested in this study and similar products should not be recommended to U.S. soybean farmers in the absence of visual symptoms of nutrient deficiency.}, journal={AGRONOMY JOURNAL}, author={Matcham, Emma G. and Vann, R. Atwell and Lindsey, Laura E. and Gaska, John M. and Lilley, Dylan T. and Ross, W. Jeremy and Wright, David L. and Knott, Carrie and Lee, Chad D. and Moseley, David and et al.}, year={2021}, month={Oct} }