Substituting chemical P fertilizer with organic manure: effects on double-rice yield, phosphorus use efficiency and balance in subtropical China

Abstract Organic manure is an ideal alternative fertilizer to provide phosphorus (P) but is not fully recycled in subtropical China. In order to identify if it can replace chemical P fertilizer, a 35-year field trail in a paddy soil under double-rice cropping system was conducted to assess the effec...

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Autores principales:	Yanhong Lu, Yajie Gao, Jun Nie, Yulin Liao, Qidong Zhu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0a5d293549a04594b24f20a4e0d99a77
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spelling	oai:doaj.org-article:0a5d293549a04594b24f20a4e0d99a772021-12-02T16:45:15ZSubstituting chemical P fertilizer with organic manure: effects on double-rice yield, phosphorus use efficiency and balance in subtropical China10.1038/s41598-021-87851-22045-2322https://doaj.org/article/0a5d293549a04594b24f20a4e0d99a772021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-87851-2https://doaj.org/toc/2045-2322Abstract Organic manure is an ideal alternative fertilizer to provide phosphorus (P) but is not fully recycled in subtropical China. In order to identify if it can replace chemical P fertilizer, a 35-year field trail in a paddy soil under double-rice cropping system was conducted to assess the effects of substituting chemical P fertilizer with pig manure (NKM) on rice yield, phosphorus use efficiency (PUE) and P balance. The N, P and K input under NKM was 1.2, 0.8 and 1.2 times of the combined chemical fertilizer treatment (NPK), respectively. The NKM treatment reached the same level of grain yield with NPK after 20 years’ application, and showed significantly 4.0% decreased double-rice grain yield compared with NPK over the 35 years. The NKM treatment reduced the crop P uptake leading to decreased PUE compared with NPK. Long-term P budget showed that NKM may result in higher potential of P loss than NPK. Thus, substituting chemical P fertilizer with organic manure under this rate of nutrient input slightly sacrificed the crop yield and may increase the P loss. Considering the benefits of soil fertility, adjusting the substitution rate with a more balanced NPK input might be alternative in subtropical China.Yanhong LuYajie GaoJun NieYulin LiaoQidong ZhuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yanhong Lu Yajie Gao Jun Nie Yulin Liao Qidong Zhu Substituting chemical P fertilizer with organic manure: effects on double-rice yield, phosphorus use efficiency and balance in subtropical China
description	Abstract Organic manure is an ideal alternative fertilizer to provide phosphorus (P) but is not fully recycled in subtropical China. In order to identify if it can replace chemical P fertilizer, a 35-year field trail in a paddy soil under double-rice cropping system was conducted to assess the effects of substituting chemical P fertilizer with pig manure (NKM) on rice yield, phosphorus use efficiency (PUE) and P balance. The N, P and K input under NKM was 1.2, 0.8 and 1.2 times of the combined chemical fertilizer treatment (NPK), respectively. The NKM treatment reached the same level of grain yield with NPK after 20 years’ application, and showed significantly 4.0% decreased double-rice grain yield compared with NPK over the 35 years. The NKM treatment reduced the crop P uptake leading to decreased PUE compared with NPK. Long-term P budget showed that NKM may result in higher potential of P loss than NPK. Thus, substituting chemical P fertilizer with organic manure under this rate of nutrient input slightly sacrificed the crop yield and may increase the P loss. Considering the benefits of soil fertility, adjusting the substitution rate with a more balanced NPK input might be alternative in subtropical China.
format	article
author	Yanhong Lu Yajie Gao Jun Nie Yulin Liao Qidong Zhu
author_facet	Yanhong Lu Yajie Gao Jun Nie Yulin Liao Qidong Zhu
author_sort	Yanhong Lu
title	Substituting chemical P fertilizer with organic manure: effects on double-rice yield, phosphorus use efficiency and balance in subtropical China
title_short	Substituting chemical P fertilizer with organic manure: effects on double-rice yield, phosphorus use efficiency and balance in subtropical China
title_full	Substituting chemical P fertilizer with organic manure: effects on double-rice yield, phosphorus use efficiency and balance in subtropical China
title_fullStr	Substituting chemical P fertilizer with organic manure: effects on double-rice yield, phosphorus use efficiency and balance in subtropical China
title_full_unstemmed	Substituting chemical P fertilizer with organic manure: effects on double-rice yield, phosphorus use efficiency and balance in subtropical China
title_sort	substituting chemical p fertilizer with organic manure: effects on double-rice yield, phosphorus use efficiency and balance in subtropical china
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/0a5d293549a04594b24f20a4e0d99a77
work_keys_str_mv	AT yanhonglu substitutingchemicalpfertilizerwithorganicmanureeffectsondoublericeyieldphosphorususeefficiencyandbalanceinsubtropicalchina AT yajiegao substitutingchemicalpfertilizerwithorganicmanureeffectsondoublericeyieldphosphorususeefficiencyandbalanceinsubtropicalchina AT junnie substitutingchemicalpfertilizerwithorganicmanureeffectsondoublericeyieldphosphorususeefficiencyandbalanceinsubtropicalchina AT yulinliao substitutingchemicalpfertilizerwithorganicmanureeffectsondoublericeyieldphosphorususeefficiencyandbalanceinsubtropicalchina AT qidongzhu substitutingchemicalpfertilizerwithorganicmanureeffectsondoublericeyieldphosphorususeefficiencyandbalanceinsubtropicalchina
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Substituting chemical P fertilizer with organic manure: effects on double-rice yield, phosphorus use efficiency and balance in subtropical China

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