Nitrogen transfer from legume green manure in a crop rotation to an onion crop using 15N natural abundance technique

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dc.contributor.authorCéspedes L., María Cecilia
dc.contributor.authorEspinoza T., Soledad
dc.contributor.authorMaas, Vicente
dc.coverageChilees_ES
dc.date.accessioned2022-09-15T14:20:09Z
dc.date.available2022-09-15T14:20:09Z
dc.date.issued2022-01
dc.description.abstractLegumes as green manure allow adding N from the air to the soil through their biological fixation. The objective was to evaluate the effect of legume crops as green manure at the beginning of the rotation on soil quality and their N input to the following onion crop (Allium cepa L. var. cepa). Five crops were sown: faba-bean (Vicia faba L.), field pea (Pisum sativum L.), oat-vetch mixture (Avena sativa L. + Vicia atropurpurea Desf.), white lupin (Lupinus albus L.), and oat as control treatment, with four replicates. Prior to sowing soil was prepared with 20 Mg ha-1 compost and 715 kg ha-1 rock phosphate. Then, at 50% grain filling stage these crops were incorporated as green manure to the soil, followed by the onion crop. Biological N fixation (BNF) by 15N natural abundance technique parameters of green manure, yield, leaf N content of the legumes and onion, and soil bio-physicochemical properties were measured and analyzed by ANOVA and Tukey’s test for mean separation (P ≤ 0.05). Faba-bean treatment had the highest BNF (388 and 369 kg N ha-1 fixed in 2017 and 2018, respectively). For onion yield, just faba-bean and oat-vetch in 2018 reached the Chilean mean yield with 54.39 and 49.08 Mg ha-1, respectively. Control treatment yield was not significantly different. Leaf N content in onion remained within a normal range in all treatments. Adding green manure together with compost to the soil improved soil N and K contents.es_ES
dc.formatapplication/pdfes_ES
dc.identifier.urihttps://hdl.handle.net/20.500.14001/68686
dc.language.isoIngléses_ES
dc.numero.paginas8 p.es_ES
dc.odsProducción y consumo responsables
dc.ods.numero12es_ES
dc.placeofeditionChillán, Chilees_ES
dc.publisherInstituto de Investigaciones Agropecuariases_ES
dc.relation.ispartofChilean Journal of Agricultural Researches_ES
dc.relation.ispartofvolv. 82(1) p. 44-51es_ES
dc.subject.spanishcebollaes_ES
dc.subject.spanishrotacion de cultivoses_ES
dc.subject.spanishabonos verdeses_ES
dc.subject.spanishfertilizantes nitrogenadoses_ES
dc.subject.spanishisotoposes_ES
dc.titleNitrogen transfer from legume green manure in a crop rotation to an onion crop using 15N natural abundance techniquees_ES
dc.title.alternative[Transferencia de nitrógeno del abono verde de leguminosas en una rotación de cultivos a un cultivo de cebolla usando 15N natural técnica de la abundancia]es_ES
dc.typeArtículo

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v. 82(1) p. 44-51
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2.2.2. Chilean Journal (Ex- Agricultura Técnica)