Evaluation of APSIM-wheat to simulate the response of yield and grain protein content to nitrogen application on an Andosol in Japan

The self-sufficiency ratio and national average yield of wheat are low in Japan. Reducing the yield gap and receiving the government subsidy for grain quality are vital strategies for profitability. Elucidating optimum nitrogen application scheme is awaited to attain both higher yield and appropriat...

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Autores principales:	De Silva S.H.N.P., Taro Takahashi, Kensuke Okada
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2021
Materias:	wheat apsimmodel calibration parameterisation validation grain protein content andosols Plant culture SB1-1110
Acceso en línea:	https://doaj.org/article/4eceac14ffdb44389debedd0594af5be
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spelling	oai:doaj.org-article:4eceac14ffdb44389debedd0594af5be2021-11-26T11:19:47ZEvaluation of APSIM-wheat to simulate the response of yield and grain protein content to nitrogen application on an Andosol in Japan1343-943X1349-100810.1080/1343943X.2021.1883989https://doaj.org/article/4eceac14ffdb44389debedd0594af5be2021-10-01T00:00:00Zhttp://dx.doi.org/10.1080/1343943X.2021.1883989https://doaj.org/toc/1343-943Xhttps://doaj.org/toc/1349-1008The self-sufficiency ratio and national average yield of wheat are low in Japan. Reducing the yield gap and receiving the government subsidy for grain quality are vital strategies for profitability. Elucidating optimum nitrogen application scheme is awaited to attain both higher yield and appropriate grain protein content (GPC) for wheat cultivation in Japan. Such decision support can be realized by integrating field experimental knowledge to crop growth models, although they have scarcely been utilized for wheat production in Japan. Therefore, the purposes of this study were to apply a widely used crop growth model (APSIM) to wheat growth on an Andosol in the Kanto region in Japan by calibration and validation. Selected model parameters of APSIM-wheat for phenology, leaf growth, and grain formation were readjusted based on the phenology and growth data of soft and hard wheat cultivars. Then the model was validated by using similar variables obtained in an independent experiment. For the simulation of the optimum sowing for winter wheat in the Kanto area (November), the root mean square error for grain yield was 23 and 48 g m−2 for Ayahikari and Yumeshiho varieties, respectively, and that for GPC was 1.9 and 1.4%. Thus, the overall model performance was acceptable for optimum sowing. However, grain yield and dry matter production were significantly overestimated when the data of late sowing groups were included. Therefore, further model improvement was suggested to add an algorithm to reduce the number of emerged plants under cold temperature in late sowing conditions.De Silva S.H.N.P.Taro TakahashiKensuke OkadaTaylor & Francis Grouparticlewheatapsimmodelcalibrationparameterisationvalidationgrain protein contentandosolsPlant cultureSB1-1110ENPlant Production Science, Vol 24, Iss 4, Pp 454-465 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	wheat apsimmodel calibration parameterisation validation grain protein content andosols Plant culture SB1-1110
spellingShingle	wheat apsimmodel calibration parameterisation validation grain protein content andosols Plant culture SB1-1110 De Silva S.H.N.P. Taro Takahashi Kensuke Okada Evaluation of APSIM-wheat to simulate the response of yield and grain protein content to nitrogen application on an Andosol in Japan
description	The self-sufficiency ratio and national average yield of wheat are low in Japan. Reducing the yield gap and receiving the government subsidy for grain quality are vital strategies for profitability. Elucidating optimum nitrogen application scheme is awaited to attain both higher yield and appropriate grain protein content (GPC) for wheat cultivation in Japan. Such decision support can be realized by integrating field experimental knowledge to crop growth models, although they have scarcely been utilized for wheat production in Japan. Therefore, the purposes of this study were to apply a widely used crop growth model (APSIM) to wheat growth on an Andosol in the Kanto region in Japan by calibration and validation. Selected model parameters of APSIM-wheat for phenology, leaf growth, and grain formation were readjusted based on the phenology and growth data of soft and hard wheat cultivars. Then the model was validated by using similar variables obtained in an independent experiment. For the simulation of the optimum sowing for winter wheat in the Kanto area (November), the root mean square error for grain yield was 23 and 48 g m−2 for Ayahikari and Yumeshiho varieties, respectively, and that for GPC was 1.9 and 1.4%. Thus, the overall model performance was acceptable for optimum sowing. However, grain yield and dry matter production were significantly overestimated when the data of late sowing groups were included. Therefore, further model improvement was suggested to add an algorithm to reduce the number of emerged plants under cold temperature in late sowing conditions.
format	article
author	De Silva S.H.N.P. Taro Takahashi Kensuke Okada
author_facet	De Silva S.H.N.P. Taro Takahashi Kensuke Okada
author_sort	De Silva S.H.N.P.
title	Evaluation of APSIM-wheat to simulate the response of yield and grain protein content to nitrogen application on an Andosol in Japan
title_short	Evaluation of APSIM-wheat to simulate the response of yield and grain protein content to nitrogen application on an Andosol in Japan
title_full	Evaluation of APSIM-wheat to simulate the response of yield and grain protein content to nitrogen application on an Andosol in Japan
title_fullStr	Evaluation of APSIM-wheat to simulate the response of yield and grain protein content to nitrogen application on an Andosol in Japan
title_full_unstemmed	Evaluation of APSIM-wheat to simulate the response of yield and grain protein content to nitrogen application on an Andosol in Japan
title_sort	evaluation of apsim-wheat to simulate the response of yield and grain protein content to nitrogen application on an andosol in japan
publisher	Taylor & Francis Group
publishDate	2021
url	https://doaj.org/article/4eceac14ffdb44389debedd0594af5be
work_keys_str_mv	AT desilvashnp evaluationofapsimwheattosimulatetheresponseofyieldandgrainproteincontenttonitrogenapplicationonanandosolinjapan AT tarotakahashi evaluationofapsimwheattosimulatetheresponseofyieldandgrainproteincontenttonitrogenapplicationonanandosolinjapan AT kensukeokada evaluationofapsimwheattosimulatetheresponseofyieldandgrainproteincontenttonitrogenapplicationonanandosolinjapan
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Evaluation of APSIM-wheat to simulate the response of yield and grain protein content to nitrogen application on an Andosol in Japan

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