Nitrogen, phosphorus, and potassium use efficiency for perennial ryegrass and white clover cultivar mixtures

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dc.contributor.authorSánchez, María Paulina
dc.contributor.authorAcuña P., Hernán
dc.contributor.authorInostroza F., Luis
dc.contributor.authorZagal V., Erick
dc.coverageChilees_ES
dc.date.accessioned2022-09-14T20:54:38Z
dc.date.available2022-09-14T20:54:38Z
dc.date.issued2021-07
dc.description.abstractThe nutrient use efficiency of perennial ryegrass (Lolium perenne L.) (PR) and white clover (Trifolium repens L.) (WC) cultivars can affect the grass-legume compatibility of different cultivar combinations, thus impacting the sustainability of animal production systems, especially on marginal soils. The objective of this work was to evaluate N, P, and K absorption efficiency (NAE, PAE, and KAE) and use efficiency (NUE, PUE, and KUE). This study included two experiments with the same full factorial treatment structure (4 PR cultivars × 3 WC cultivars) in a randomized complete block design under field conditions and a completely randomized pot design. The field cutting experiment was carried out on sites with two contrasting soil depths and the pot experiment was conducted under shade conditions. Results showed nonsignificant (P > 0.05) factor interactions for DM yield and both nutrient absorption and use efficiency. The NAE and PAE of PR ‘Extreme’ and ‘Bealey’ were higher under field conditions than pot conditions. In the field experiment, NAE of WC ‘Will’ (2.33 kg DM ha-1/mg N kg-1) tended to be similar (P < 0.05) to other cultivars in deep soil, but was significantly higher (P < 0.001) than ‘Ladino’ and ‘Bounty’ in shallow soil (0.70 kg DM ha-1/mg kg-1). The evaluation of NUE and PUE under field conditions and KUE under pot conditions showed that PR ‘Bealey’ and WC ‘Ladino’ reached higher values. In conclusion, results showed a cultivar effect on nutrient use efficiency in PR/WC mixtures, which had an impact on PRWC compatibility, mainly due to the higher absorption efficiency of PR ‘Bealey’ and WC ‘Will’, both of which exhibited the highest degree of compatibility for total DM yield.es_ES
dc.formatapplication/pdfes_ES
dc.identifier.urihttps://hdl.handle.net/20.500.14001/68682
dc.language.isoIngléses_ES
dc.numero.paginas11 p.es_ES
dc.placeofeditionChillán, Chilees_ES
dc.publisherInstituto de Investigaciones Agropecuariases_ES
dc.relation.ispartofChilean Journal of Agricultural Researches_ES
dc.relation.ispartofvolv. 81(3) p. 456-466es_ES
dc.subject.spanishballica inglesaes_ES
dc.subject.spanishtrebol blancoes_ES
dc.subject.spanishgramineases_ES
dc.subject.spanishnitrogenoes_ES
dc.titleNitrogen, phosphorus, and potassium use efficiency for perennial ryegrass and white clover cultivar mixtureses_ES
dc.title.alternative[Eficiencia en el uso de nitrógeno, fósforo y potasio para cultivar de raigrás perenne y trébol blanco mezclas]es_ES
dc.typeArtículo

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v. 81(3) p. 456-466
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2.2.2. Chilean Journal (Ex- Agricultura Técnica)