Changes in regional grain yield responses to chemical fertilizer use in China over the last 20 years

Abstract: A major challenge facing China is to meet the increasing food demand of its growing population in the face of decreasing arable land area, while sustaining or improving soil productivity and avoiding adverse environmental impacts from intensive agriculture. This study uses data from China...

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Autores principales:	Wang,Xiaobin, Cai,Dianxiong, Grant,Cynthia, Hoogmoed,Willem B, Oenema,Oene
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2018
Materias:	Cropland grain yield soil productivity fertilizer fertilizer-use efficiency
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162018000200312
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spelling	oai:scielo:S0718-951620180002003122018-11-21Changes in regional grain yield responses to chemical fertilizer use in China over the last 20 yearsWang,XiaobinCai,DianxiongGrant,CynthiaHoogmoed,Willem BOenema,Oene Cropland grain yield soil productivity fertilizer fertilizer-use efficiency Abstract: A major challenge facing China is to meet the increasing food demand of its growing population in the face of decreasing arable land area, while sustaining or improving soil productivity and avoiding adverse environmental impacts from intensive agriculture. This study uses data from China Statistical Yearbooks to analyze trends in regional soil productivity and grain yields in the major grain-producing regions in North China (NC), Northeast China (NE), East China (EC), Central China (CC), and Southwest China (SW), associated with regional fertilizer use and annual climate variation in rainfall and mean temperature over the 20 years. During 1992-2012, the average fertilizer increase rates (in kg ha-1 year-1) were in the order of regions CC (6.6) > NC (4.8) > EC (2.4) > SW (2.1) > NE (1.3), while yield responses to fertilizer use (with regression model coefficients, in kg kg-1) were in the order: SW (-0.9) < CC (1.1) < NC (1.7) < EC (5.7) < NE (9.3), showing higher yield responses to fertilizer use for NE and EC than for other regions. The changes in regional grain yields also showed higher yield responses to soil-based productivity for NC, CC, and SW, or to annual climate variability for CC than for other regions, indicating that other factors (such as inherent soil productivity or annual climate variability could be more important than fertilizer in affecting yields. The strategies for regulating nutrient management are needed considerably based on regional indigenous soil nutrient supply under varying regional climate conditions.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.18 n.2 20182018-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162018000200312en10.4067/S0718-95162018005001102
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Cropland grain yield soil productivity fertilizer fertilizer-use efficiency
spellingShingle	Cropland grain yield soil productivity fertilizer fertilizer-use efficiency Wang,Xiaobin Cai,Dianxiong Grant,Cynthia Hoogmoed,Willem B Oenema,Oene Changes in regional grain yield responses to chemical fertilizer use in China over the last 20 years
description	Abstract: A major challenge facing China is to meet the increasing food demand of its growing population in the face of decreasing arable land area, while sustaining or improving soil productivity and avoiding adverse environmental impacts from intensive agriculture. This study uses data from China Statistical Yearbooks to analyze trends in regional soil productivity and grain yields in the major grain-producing regions in North China (NC), Northeast China (NE), East China (EC), Central China (CC), and Southwest China (SW), associated with regional fertilizer use and annual climate variation in rainfall and mean temperature over the 20 years. During 1992-2012, the average fertilizer increase rates (in kg ha-1 year-1) were in the order of regions CC (6.6) > NC (4.8) > EC (2.4) > SW (2.1) > NE (1.3), while yield responses to fertilizer use (with regression model coefficients, in kg kg-1) were in the order: SW (-0.9) < CC (1.1) < NC (1.7) < EC (5.7) < NE (9.3), showing higher yield responses to fertilizer use for NE and EC than for other regions. The changes in regional grain yields also showed higher yield responses to soil-based productivity for NC, CC, and SW, or to annual climate variability for CC than for other regions, indicating that other factors (such as inherent soil productivity or annual climate variability could be more important than fertilizer in affecting yields. The strategies for regulating nutrient management are needed considerably based on regional indigenous soil nutrient supply under varying regional climate conditions.
author	Wang,Xiaobin Cai,Dianxiong Grant,Cynthia Hoogmoed,Willem B Oenema,Oene
author_facet	Wang,Xiaobin Cai,Dianxiong Grant,Cynthia Hoogmoed,Willem B Oenema,Oene
author_sort	Wang,Xiaobin
title	Changes in regional grain yield responses to chemical fertilizer use in China over the last 20 years
title_short	Changes in regional grain yield responses to chemical fertilizer use in China over the last 20 years
title_full	Changes in regional grain yield responses to chemical fertilizer use in China over the last 20 years
title_fullStr	Changes in regional grain yield responses to chemical fertilizer use in China over the last 20 years
title_full_unstemmed	Changes in regional grain yield responses to chemical fertilizer use in China over the last 20 years
title_sort	changes in regional grain yield responses to chemical fertilizer use in china over the last 20 years
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162018000200312
work_keys_str_mv	AT wangxiaobin changesinregionalgrainyieldresponsestochemicalfertilizeruseinchinaoverthelast20years AT caidianxiong changesinregionalgrainyieldresponsestochemicalfertilizeruseinchinaoverthelast20years AT grantcynthia changesinregionalgrainyieldresponsestochemicalfertilizeruseinchinaoverthelast20years AT hoogmoedwillemb changesinregionalgrainyieldresponsestochemicalfertilizeruseinchinaoverthelast20years AT oenemaoene changesinregionalgrainyieldresponsestochemicalfertilizeruseinchinaoverthelast20years
_version_	1714206581045854208

Changes in regional grain yield responses to chemical fertilizer use in China over the last 20 years

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