Increased planting density combined with reduced nitrogen rate to achieve high yield in maize

Abstract The combination effects of nitrogen (N) fertilizer and planting density on maize yield, N use efficiency and the characteristics of canopy radiation capture and radiation use efficiency are not well documented in the Huanghuaihai Plain region in China. A 2-year field experiment was conducte...

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Autores principales:	Xiangbei Du, Zhi Wang, Weixia Lei, Lingcong Kong
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/64ddc1bdd0d04db6bd51c5dabf7a7ed1
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spelling	oai:doaj.org-article:64ddc1bdd0d04db6bd51c5dabf7a7ed12021-12-02T14:01:35ZIncreased planting density combined with reduced nitrogen rate to achieve high yield in maize10.1038/s41598-020-79633-z2045-2322https://doaj.org/article/64ddc1bdd0d04db6bd51c5dabf7a7ed12021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-79633-zhttps://doaj.org/toc/2045-2322Abstract The combination effects of nitrogen (N) fertilizer and planting density on maize yield, N use efficiency and the characteristics of canopy radiation capture and radiation use efficiency are not well documented in the Huanghuaihai Plain region in China. A 2-year field experiment was conducted from 2017 to 2018 in a split plot design with two N levels (240 and 204 kg N ha−1) applied to main plots and three plant densities (67,500, 77,625 and 87,750 plants ha−1) allocated to sub plots. Our results show that a 30% greater plant density combined with a 15% lower N rate (basal N) enhanced N partial factor productivity (NPFP) by 24.7% and maize grain yield by 6.6% compared with those of the conventional high N rate combined with a low density planting management practice. The yield increase was mainly attributed to significantly increased kernel numbers and biomass. The increased intercepted photosynthetically active radiation (IPAR) was the primary factor responsible for the high productivity of maize at increased planting density under reduced N conditions. The results indicate that increase planting density with reduced basal N application might benefit maize cropping for achieving high yields and sustainable development of agriculture.Xiangbei DuZhi WangWeixia LeiLingcong KongNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Xiangbei Du Zhi Wang Weixia Lei Lingcong Kong Increased planting density combined with reduced nitrogen rate to achieve high yield in maize
description	Abstract The combination effects of nitrogen (N) fertilizer and planting density on maize yield, N use efficiency and the characteristics of canopy radiation capture and radiation use efficiency are not well documented in the Huanghuaihai Plain region in China. A 2-year field experiment was conducted from 2017 to 2018 in a split plot design with two N levels (240 and 204 kg N ha−1) applied to main plots and three plant densities (67,500, 77,625 and 87,750 plants ha−1) allocated to sub plots. Our results show that a 30% greater plant density combined with a 15% lower N rate (basal N) enhanced N partial factor productivity (NPFP) by 24.7% and maize grain yield by 6.6% compared with those of the conventional high N rate combined with a low density planting management practice. The yield increase was mainly attributed to significantly increased kernel numbers and biomass. The increased intercepted photosynthetically active radiation (IPAR) was the primary factor responsible for the high productivity of maize at increased planting density under reduced N conditions. The results indicate that increase planting density with reduced basal N application might benefit maize cropping for achieving high yields and sustainable development of agriculture.
format	article
author	Xiangbei Du Zhi Wang Weixia Lei Lingcong Kong
author_facet	Xiangbei Du Zhi Wang Weixia Lei Lingcong Kong
author_sort	Xiangbei Du
title	Increased planting density combined with reduced nitrogen rate to achieve high yield in maize
title_short	Increased planting density combined with reduced nitrogen rate to achieve high yield in maize
title_full	Increased planting density combined with reduced nitrogen rate to achieve high yield in maize
title_fullStr	Increased planting density combined with reduced nitrogen rate to achieve high yield in maize
title_full_unstemmed	Increased planting density combined with reduced nitrogen rate to achieve high yield in maize
title_sort	increased planting density combined with reduced nitrogen rate to achieve high yield in maize
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/64ddc1bdd0d04db6bd51c5dabf7a7ed1
work_keys_str_mv	AT xiangbeidu increasedplantingdensitycombinedwithreducednitrogenratetoachievehighyieldinmaize AT zhiwang increasedplantingdensitycombinedwithreducednitrogenratetoachievehighyieldinmaize AT weixialei increasedplantingdensitycombinedwithreducednitrogenratetoachievehighyieldinmaize AT lingcongkong increasedplantingdensitycombinedwithreducednitrogenratetoachievehighyieldinmaize
_version_	1718392143693742080

Increased planting density combined with reduced nitrogen rate to achieve high yield in maize

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