Nutrient accumulation affected by corn stover management associated with nitrogen and phosphorus fertilization

Fernando Shintate Galindo, Jeffrey S. Strock, Paulo Humberto Pagliari

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Bio-ethanol production from corn stover harvest would change nutrient removal, in particular nitrogen (N) and phosphorus (P), affecting nutrient replenishment and corn development under field-grown conditions. This research was developed to investigate whether stover removal had any influence on the amount of N and P fertilizer required for maximum corn production in the United States (US) Midwest in a stover removal scenario. This study was conducted in Lamberton, MN on a Typic Endoaquoll under continuous corn from 2013 to 2015. The treatments included six N rates (0 to 200 kg N ha−1 in 40 kg increments), five P rates (0 to 100 kg P2O5 ha−1 in 25 kg increments), and two residue management strategies (residue removed or incorporated). Residue management was found to have a significant impact on corn response to N and P application. We verified that residue-removed plots yielded more and therefore required more N and P application from fertilizers. Grain yield after residue was removed was greatest with the highest N and P2O5 rates, whereas grain yield after residue was incorporated was greatest with intermediate N and P2O5 rates in 2013 and 2014. In 2015, residue management did not significantly affect grain yield. Grain N and P accumulation followed a similar behavior as that observed for grain yield. In general, residue removal decreased nutrient availability, while in the residue-incorporated treatment, those nutrients were returned. Although the results of the study showed potential for biomass harvest, it also indicated that nitrogen immobilization and nutrient depletion from the soil could be a limiting factor.

Original languageEnglish (US)
Article number1118
JournalAgriculture (Switzerland)
Volume11
Issue number11
DOIs
StatePublished - Nov 2021

Bibliographical note

Funding Information:
Funding: This research received funding from the Minnesota Corn Research and Promotion Council.

Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.

Keywords

  • Corn stover removal
  • Nitrogen application rates
  • Nutrient management strategies
  • Phosphorus application rates
  • Zea mays L

Fingerprint

Dive into the research topics of 'Nutrient accumulation affected by corn stover management associated with nitrogen and phosphorus fertilization'. Together they form a unique fingerprint.

Cite this