Year: 2013
Type: article
Abstract: With double-crop soybean production, fertilizer is typically applied prior to planting wheat and is intended for both crops; when wheat nutrient removal is higher than expected, this may limit nutrient supply for the following soybean crop.The objective of this study was to evaluate the response of soybean grown after wheat to soil-applied and foliar fertilization, including changes in tissue nutrient concentration and response in grain yield.Four sites were established in 2011 and 2012.All sites for this study were rainfed on no-till fields planted immediately after wheat harvest.Macronutrients (nitrogen, phosphorus, and potassium [N, P, K]), micronutrients (iron, manganese, and zinc [Fe, Mn, Zn]), and sulfur (S) were band-applied at planting.Foliar micronutrients were applied at flowering (R1).Tissue samples were collected prior to foliar fertilizer application at R1. Preplant and post-harvest soil samples were collected and analyzed.The tissue and soil samples were analyzed for the nutrients applied with the fertilizer treatments.During the two years of this study, severe drought limited the potential yield response and possibly nutrient uptake, and this should be considered in data interpretation.Results across site-years indicated that tissue nutrient concentration for micronutrients was a poor indicator of potential yield response.Soybean seed yield showed small response to soil-applied S, Mn, and Zn, but when micronutrients were foliar-applied, seed yield decreased significantly, likely due to some leaf damage caused by foliar fertilizer application.
Author: Dorivar Ruiz Diaz
Institution: Kansas State University
Language: English
Subfield: Soil Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: hybrid
OpenAlex ID: W2916050877