Publication
Assessment of Mineralized Nitrogen During Maize Growth Succeeding Different Winter Cover Crops in the Mediterranean Environment
| dc.contributor.author | Perdigão, Adelaide | |
| dc.contributor.author | Pereira, José L.S. | |
| dc.contributor.author | Moreira, Nuno | |
| dc.contributor.author | Trindade, Henrique | |
| dc.contributor.author | Coutinho, João | |
| dc.date.accessioned | 2023-01-09T10:38:39Z | |
| dc.date.available | 2023-01-09T10:38:39Z | |
| dc.date.issued | 2022-09-30 | |
| dc.description.abstract | Background: Understanding soil nitrogen (N) dynamics is essential to find alternative N sources and improve N use efficiency in agriculture. Objective: The aim of this study was to assess N mineralization rates from residues of winter cover crops, during maize crop season, under Mediterranean conditions. Methods: A field experiment was carried out from May to September in central Portugal, with four replications, two sowing dates of cover crops (15/10/2011 and 29/11/2011) and three cover crops residues (balansa clover, ryegrass and yellow lupine) that were incorporated in the soil. Plots were cropped with local maize and net N mineralization was measured during the crop cycle, using soil cylinders placed inside micro-perforated polyethylene bags. Results and Discussion: Early sowing of the cover crops residues increased the NH4+ and NO3- contents in the soil. Yellow lupine residue had the highest rate of daily N mineralization (0.71 mg N kg-1 day-1). For all treatments, the highest mineralization rate was found in the last incubation period, ranging between 0.78 mg N kg-1 day-1 and 1.84 mg N kg-1 day-1, both for balansa clover, from the second and the first sowing date, respectively. Conclusion: The present study suggests that, under Mediterranean field conditions, cover crops residue of Italian ryegrass, balansa clover and yellow lupin can be used as a nitrogen source namely for sustainable maize crops. | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.doi | 10.2174/18743315-v16-e2208150 | pt_PT |
| dc.identifier.uri | http://hdl.handle.net/10400.19/7513 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.subject | Balansa clover | pt_PT |
| dc.subject | N mineralization | pt_PT |
| dc.subject | N sources | pt_PT |
| dc.subject | Ryegrass | pt_PT |
| dc.subject | Yellow lupine | pt_PT |
| dc.subject | Crops | pt_PT |
| dc.title | Assessment of Mineralized Nitrogen During Maize Growth Succeeding Different Winter Cover Crops in the Mediterranean Environment | pt_PT |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.issue | 1 | pt_PT |
| oaire.citation.title | The Open Agriculture Journal | pt_PT |
| oaire.citation.volume | 16 | pt_PT |
| person.familyName | Perdigão | |
| person.familyName | Pereira | |
| person.givenName | Adelaide | |
| person.givenName | José Luís da Silva | |
| person.identifier | 444832 | |
| person.identifier.ciencia-id | 5214-3B71-2F01 | |
| person.identifier.ciencia-id | 6D17-2407-9EA8 | |
| person.identifier.orcid | 0000-0001-6080-7760 | |
| person.identifier.orcid | 0000-0001-8078-8915 | |
| person.identifier.rid | E-4375-2012 | |
| person.identifier.scopus-author-id | 7401895587 | |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | article | pt_PT |
| relation.isAuthorOfPublication | 41fa72ef-76e9-45fa-b180-be89895e44a5 | |
| relation.isAuthorOfPublication | f6530c4c-7176-4ba1-b46d-5e54d022eb6a | |
| relation.isAuthorOfPublication.latestForDiscovery | 41fa72ef-76e9-45fa-b180-be89895e44a5 |