Comparison of resilience of different plant teams to drought and temperature extremes in Denmark in sole and intercropping systems

Intercropping (IC) can reduce nitrogen fertilizer requirements, supress weeds, and improve crop yields and yield stability. Three field trials were conducted in Denmark in 2018 with intercropping and sole crops (SC) using spring wheat, barley, faba bean and field pea to compare productivity under fi...

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Main Authors: Robin R. Sears, Ambreen Naz Shah, Lisa Mølgaard Lehmann, Bhim Bahadur Ghaley
Format: Article
Language:English
Published: Taylor & Francis Group 2021-10-01
Series:Acta Agriculturae Scandinavica. Section B, Soil and Plant Science
Subjects:
Online Access:http://dx.doi.org/10.1080/09064710.2021.1936621
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author Robin R. Sears
Ambreen Naz Shah
Lisa Mølgaard Lehmann
Bhim Bahadur Ghaley
author_facet Robin R. Sears
Ambreen Naz Shah
Lisa Mølgaard Lehmann
Bhim Bahadur Ghaley
author_sort Robin R. Sears
collection DOAJ
description Intercropping (IC) can reduce nitrogen fertilizer requirements, supress weeds, and improve crop yields and yield stability. Three field trials were conducted in Denmark in 2018 with intercropping and sole crops (SC) using spring wheat, barley, faba bean and field pea to compare productivity under five fertilizer levels. The trials were carried out using in a split-plot design with four. Anomalous weather during the 2018 cropping season created drought conditions and high temperatures above 31°C. No effect of fertilizer treatment was found, and total dry matter and grain yields were supressed in all systems. Wheat grain yields averaged 2.14 t ha−1 across systems, ranging from 1.58 t ha−1 as a component of the IC to 2.44 t ha−1 as SC, and barley grain yields averaged 2.35 t ha−1. Faba bean yielded 1.78 t ha−1 as SC, but failed in the IC. Pea failed in both systems. Intercropping barley with cover crops had no effect on grain yield or total dry matter. These results suggest that intercropping provided no production advantage during a drought and illuminate the need to continue conducting research and breeding on drought-resistant cultivars.
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spelling doaj.art-9b569a3a2b6e4b50a7a7df87f232258e2023-09-15T10:26:26ZengTaylor & Francis GroupActa Agriculturae Scandinavica. Section B, Soil and Plant Science0906-47101651-19132021-10-0171764565510.1080/09064710.2021.19366211936621Comparison of resilience of different plant teams to drought and temperature extremes in Denmark in sole and intercropping systemsRobin R. Sears0Ambreen Naz Shah1Lisa Mølgaard Lehmann2Bhim Bahadur Ghaley3University of CopenhagenUniversity of CopenhagenUniversity of CopenhagenUniversity of CopenhagenIntercropping (IC) can reduce nitrogen fertilizer requirements, supress weeds, and improve crop yields and yield stability. Three field trials were conducted in Denmark in 2018 with intercropping and sole crops (SC) using spring wheat, barley, faba bean and field pea to compare productivity under five fertilizer levels. The trials were carried out using in a split-plot design with four. Anomalous weather during the 2018 cropping season created drought conditions and high temperatures above 31°C. No effect of fertilizer treatment was found, and total dry matter and grain yields were supressed in all systems. Wheat grain yields averaged 2.14 t ha−1 across systems, ranging from 1.58 t ha−1 as a component of the IC to 2.44 t ha−1 as SC, and barley grain yields averaged 2.35 t ha−1. Faba bean yielded 1.78 t ha−1 as SC, but failed in the IC. Pea failed in both systems. Intercropping barley with cover crops had no effect on grain yield or total dry matter. These results suggest that intercropping provided no production advantage during a drought and illuminate the need to continue conducting research and breeding on drought-resistant cultivars.http://dx.doi.org/10.1080/09064710.2021.1936621intercroppingcereal-legumedroughtbarleycover cropfield trialland equivalent ratio
spellingShingle Robin R. Sears
Ambreen Naz Shah
Lisa Mølgaard Lehmann
Bhim Bahadur Ghaley
Comparison of resilience of different plant teams to drought and temperature extremes in Denmark in sole and intercropping systems
Acta Agriculturae Scandinavica. Section B, Soil and Plant Science
intercropping
cereal-legume
drought
barley
cover crop
field trial
land equivalent ratio
title Comparison of resilience of different plant teams to drought and temperature extremes in Denmark in sole and intercropping systems
title_full Comparison of resilience of different plant teams to drought and temperature extremes in Denmark in sole and intercropping systems
title_fullStr Comparison of resilience of different plant teams to drought and temperature extremes in Denmark in sole and intercropping systems
title_full_unstemmed Comparison of resilience of different plant teams to drought and temperature extremes in Denmark in sole and intercropping systems
title_short Comparison of resilience of different plant teams to drought and temperature extremes in Denmark in sole and intercropping systems
title_sort comparison of resilience of different plant teams to drought and temperature extremes in denmark in sole and intercropping systems
topic intercropping
cereal-legume
drought
barley
cover crop
field trial
land equivalent ratio
url http://dx.doi.org/10.1080/09064710.2021.1936621
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AT lisamølgaardlehmann comparisonofresilienceofdifferentplantteamstodroughtandtemperatureextremesindenmarkinsoleandintercroppingsystems
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