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Cited by 24Soil Carbon and Nitrogen DynamicsAgricultural Science and FertilizationSoil Management and Crop Yield

The DOI matches its Crossref record; 37 of the 37 references it cites were found in a registry or an index.

Evaluation of post-harvest organic carbon amendments as a strategy to minimize nitrogen losses in cole crop production.

Open access
Congreves, Katelyn, Vyn, Richard, Van Eerd, Laura·2013·Agronomy
DOI 10.3390/agronomy3010181
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Abstract

Cole crops (Brassica vegetables) can pose a significant risk for N losses during the post-harvest period due to substantial amounts of readily mineralizable N in crop residues. Amending the soil with organic C has the potential to immobilize N and thereby reduce the risk for N losses. Four field trials were conducted to determine the effects of organic C amendments (OCA) on N dynamics and spring wheat (Triticum durum L.) harvest parameters proceeding early- and late-broccoli (Brassica olecerea var italica L.) systems in 2009 and 2010. The experimental controls represented the traditional grower practice of incorporated broccoli crop residue (CR-control) and the pre-plant application of N fertilizer (CRN-control) to subsequent spring wheat. Alternative practices were compared to the controls, which included broccoli crop residue removal (CR-removal), an oat (Avena sativa L.) cover crop (CC-oat), and three different OCA of wheat straw (OCA-straw), yard waste (OCA-yard), or used cooking oil (OCA-oil). The treatments, which demonstrated reduced autumn soil mineral N (SMN) concentrations after broccoli harvest, relative to the CR-control, were CR-removal, OCA-straw, and OCA-oil. Although CR-removal and OCA-straw indicated a reduced potential for autumn soil N losses in the early-broccoli system, these practices are not recommended for growers because subsequent spring wheat yield and profit margins were reduced compared to the CR- and CRN-controls. The OCA-oil reduced autumn SMN concentrations by 53 to 112 kg N ha−1 relative to the CR-control after both early- and late-broccoli harvest, suggesting a larger potential for reduced autumn soil N losses, compared to all other treatments. No detrimental effects resulted from the OCA-oil treatment on the subsequent spring yield or grain N. The OCA-oil reduced spring wheat profit margins relative to the CR-control, like the OCA-straw and CR-removal treatments, however profit margins were similar between the OCA-oil and the CRN-control. Therefore, in areas with a high risk of environmental N contamination, growers should consider the OCA-oil practice after cole crop harvest to minimize the risk of N losses.

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Cites

Research works printed but not linked: 3

  1. Carter, M.R., and Gregorich, E.G. (2008). Soil Sampling and Methods of Analysis, CRC. · DOI
  2. Carter, M.R., and Gregorich, E.G. (2008). Soil Sampling and Methods of Analysis, CRC. · DOI
  3. (2011). Ontario Farm Input Monitoring Project, Survey No. 1, 2009, 2010, 2011.

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Metadata

Authors
Congreves, K., Vyn, R., & Van Eerd, L.
Affiliations
  • School of Environmental Sciences, University of Guelph, Ridgetown Campus, Ridgetown, Ontario, N0P 2C0, Canada
  • University of Guelph (CA)
ORCID
Vyn, Richard
Venue
Agronomy
Publisher
MDPI AG
Published
2013-02-18
Volume
3
Issue
1
Pages
181-199
ISSN
2073-4395 (ISSN-L)
DOI
10.3390/agronomy3010181
OpenAlex
W1995933544
Cited by
24
References
37
Citations by year
2026: 2 · 2023: 2 · 2022: 1 · 2021: 5 · 2018: 3 · 2017: 2 · 2016: 2 · 2015: 2 · 2014: 2 · 2013: 2
FWCI
3.86
Type
journal article
Language
en
Open access
Licence
Locations
  • Agronomy (publishedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Ontario Ministry of Agriculture, Food and Rural Affairs
  • Ministry of Agriculture, Food and Rural Affairs
Topics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Agricultural Science and Fertilization
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Management and Crop Yield
Keywords
organic carbon amendment, nitrogen loss, nitrogen immobilization, broccoli, spring wheat, crop residue management, waste cooking oil, wheat straw, yard waste, soil mineral nitrogen, nitrogen leaching, profit margin, cruciferous vegetables

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