dc.contributor.author | Øgaard, Anne Falk | |
dc.contributor.author | Aamlid, Trygve | |
dc.date.accessioned | 2021-02-09T09:26:48Z | |
dc.date.available | 2021-02-09T09:26:48Z | |
dc.date.created | 2020-08-26T09:28:28Z | |
dc.date.issued | 2020-05-17 | |
dc.identifier.citation | Agronomy Journal. 2020, 112 (5), 3478-3490. | en_US |
dc.identifier.issn | 0002-1962 | |
dc.identifier.uri | https://hdl.handle.net/11250/2726796 | |
dc.description.abstract | Phosphorus is an essential plant nutrient, but primary resources are limited and overfertilization may cause eutrophication of freshwater. Our objectives were to examine temperature effects on (a) optimal P rate for turfgrass establishment, and (b) increasing rates of foliar vs. granular P for early spring growth of established greens. Two trials, both on USGA root zones and replicated in April−May over 2 yr, were conducted in daylight phytotrons at 7, 12 and 17 °C. Experiment 1 compared 5 P rates from 0 to 0.48 g P m−2 wk−1 for creeping bentgrass establishment on a sand containing 13 mg P kg−1 (Mehlich‐3). Results showed no temperature effect on the optimal P rate. Bentgrass coverage and clipping yield increased up to 0.12 and 0.24 g P m−2 wk−1, corresponding to 6 and 12% of the N input, respectively. The concentration of P in clippings was higher at 7 than at 17 °C indicating that temperature was more limiting to shoot growth than to P uptake. A higher root/top ratio showed that plants invested more in roots under P deficiency. Experiment 2 was conducted using intact cores from a 4‐yr‐old creeping bentgrass (Agrostis stolonifera L.) green with a Mehlich‐3 P level of 34 mg P kg−1. Results showed increased clipping yields up to 0.18 g P m−2 wk−1 and higher P uptake with granular than with foliar application, but there was no effect on turfgrass color and no interaction with temperature. Low temperatures did not justify higher P applications. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | John Wiley & Sons Ltd. | en_US |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no | * |
dc.title | Temperature effects on phosphorus requirements for creeping bentgrass establishment and spring growth | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | © 2020 The Authors | en_US |
dc.source.pagenumber | 3478-3490 | en_US |
dc.source.volume | 112 | en_US |
dc.source.journal | Agronomy Journal | en_US |
dc.source.issue | 5 | en_US |
dc.identifier.doi | 10.1002/agj2.20288 | |
dc.identifier.cristin | 1825188 | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |