Evaluating agroclimatic constraints and yield gaps for winter oilseed rape (Brassica napus L.) – A case study

Abstract Evaluating the effects of agroclimatic constraints on winter oilseed rape (WOSR) yield can facilitate the development of agricultural mitigation and adaptation strategies. In this study, we investigated the relationship between the WOSR yield and agroclimatic factors using the yield data co...

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Autores principales:	Zhi Zhang, Jianwei Lu, Rihuan Cong, Tao Ren, Xiaokun Li
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f846e2d2d2ca4d72a310a9b44f784f67
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spelling	oai:doaj.org-article:f846e2d2d2ca4d72a310a9b44f784f672021-12-02T11:40:30ZEvaluating agroclimatic constraints and yield gaps for winter oilseed rape (Brassica napus L.) – A case study10.1038/s41598-017-08164-x2045-2322https://doaj.org/article/f846e2d2d2ca4d72a310a9b44f784f672017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08164-xhttps://doaj.org/toc/2045-2322Abstract Evaluating the effects of agroclimatic constraints on winter oilseed rape (WOSR) yield can facilitate the development of agricultural mitigation and adaptation strategies. In this study, we investigated the relationship between the WOSR yield and agroclimatic factors using the yield data collected from Agricultural Yearbook and field experimental sites, and the climate dataset from the meteorological stations in Hubei province, China. Five agroclimatic indicators during WOSR growth, such as ≥0 °C accumulated temperature (AT-0), overwintering days (OWD), precipitation (P), precipitation at an earlier stage (EP) and sunshine hours (S), were extracted from twelve agroclimatic indices. The attainable yield for the five yield-limiting factors ranged from 2638 kg ha−1 (EP) to 3089 kg ha−1 (AT-0). Farmers (Y farm ) and local agronomists (Y exp ) have achieved 63% and 86% of the attainable yield (Y att ), respectively. The contribution of optimum fertilization to narrow the yield gap (NY exp ) was 52% for the factor P, which was remarkably lower than the mean value (63%). Overall, the precipitation was the crucial yield-limiting agroclimatic factor, and restricted the effect of optimizing fertilization. The integrated data suggest that agricultural strategies of mitigation and adaptation to climatic variability based on different agroclimatic factors are essential for improving the crop yield.Zhi ZhangJianwei LuRihuan CongTao RenXiaokun LiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Zhi Zhang Jianwei Lu Rihuan Cong Tao Ren Xiaokun Li Evaluating agroclimatic constraints and yield gaps for winter oilseed rape (Brassica napus L.) – A case study
description	Abstract Evaluating the effects of agroclimatic constraints on winter oilseed rape (WOSR) yield can facilitate the development of agricultural mitigation and adaptation strategies. In this study, we investigated the relationship between the WOSR yield and agroclimatic factors using the yield data collected from Agricultural Yearbook and field experimental sites, and the climate dataset from the meteorological stations in Hubei province, China. Five agroclimatic indicators during WOSR growth, such as ≥0 °C accumulated temperature (AT-0), overwintering days (OWD), precipitation (P), precipitation at an earlier stage (EP) and sunshine hours (S), were extracted from twelve agroclimatic indices. The attainable yield for the five yield-limiting factors ranged from 2638 kg ha−1 (EP) to 3089 kg ha−1 (AT-0). Farmers (Y farm ) and local agronomists (Y exp ) have achieved 63% and 86% of the attainable yield (Y att ), respectively. The contribution of optimum fertilization to narrow the yield gap (NY exp ) was 52% for the factor P, which was remarkably lower than the mean value (63%). Overall, the precipitation was the crucial yield-limiting agroclimatic factor, and restricted the effect of optimizing fertilization. The integrated data suggest that agricultural strategies of mitigation and adaptation to climatic variability based on different agroclimatic factors are essential for improving the crop yield.
format	article
author	Zhi Zhang Jianwei Lu Rihuan Cong Tao Ren Xiaokun Li
author_facet	Zhi Zhang Jianwei Lu Rihuan Cong Tao Ren Xiaokun Li
author_sort	Zhi Zhang
title	Evaluating agroclimatic constraints and yield gaps for winter oilseed rape (Brassica napus L.) – A case study
title_short	Evaluating agroclimatic constraints and yield gaps for winter oilseed rape (Brassica napus L.) – A case study
title_full	Evaluating agroclimatic constraints and yield gaps for winter oilseed rape (Brassica napus L.) – A case study
title_fullStr	Evaluating agroclimatic constraints and yield gaps for winter oilseed rape (Brassica napus L.) – A case study
title_full_unstemmed	Evaluating agroclimatic constraints and yield gaps for winter oilseed rape (Brassica napus L.) – A case study
title_sort	evaluating agroclimatic constraints and yield gaps for winter oilseed rape (brassica napus l.) – a case study
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/f846e2d2d2ca4d72a310a9b44f784f67
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Evaluating agroclimatic constraints and yield gaps for winter oilseed rape (Brassica napus L.) – A case study

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