JZUS - Journal of Zhejiang University SCIENCE

Journal of Zhejiang University SCIENCE B 2014 Vol.15 No.4 P.365-374

Improved yield and Zn accumulation for rice grain by Zn fertilization and optimized water management*

Author(s): Yu-yan Wang¹, Yan-yan Wei², Lan-xue Dong¹, Ling-li Lu¹, Ying Feng¹, Jie Zhang¹, Feng-shan Pan¹, Xiao-e Yang¹
Affiliation(s): 1. Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; more
Corresponding email(s): xyang571@yahoo.com
Key Words: Rice, Alternate wetting and drying, Soil fertilization, Zinc

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Yu-yan Wang, Yan-yan Wei, Lan-xue Dong, Ling-li Lu, Ying Feng, Jie Zhang, Feng-shan Pan, Xiao-e Yang. Improved yield and Zn accumulation for rice grain by Zn fertilization and optimized water management[J]. Journal of Zhejiang University Science B, 2014, 15(4): 365-374.

@article{title="Improved yield and Zn accumulation for rice grain by Zn fertilization and optimized water management",
author="Yu-yan Wang, Yan-yan Wei, Lan-xue Dong, Ling-li Lu, Ying Feng, Jie Zhang, Feng-shan Pan, Xiao-e Yang",
journal="Journal of Zhejiang University Science B",
volume="15",
number="4",
pages="365-374",
year="2014",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.B1300263"
}

%0 Journal Article
%T Improved yield and Zn accumulation for rice grain by Zn fertilization and optimized water management
%A Yu-yan Wang
%A Yan-yan Wei
%A Lan-xue Dong
%A Ling-li Lu
%A Ying Feng
%A Jie Zhang
%A Feng-shan Pan
%A Xiao-e Yang
%J Journal of Zhejiang University SCIENCE B
%V 15
%N 4
%P 365-374
%@ 1673-1581
%D 2014
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.B1300263

TY - JOUR
T1 - Improved yield and Zn accumulation for rice grain by Zn fertilization and optimized water management
A1 - Yu-yan Wang
A1 - Yan-yan Wei
A1 - Lan-xue Dong
A1 - Ling-li Lu
A1 - Ying Feng
A1 - Jie Zhang
A1 - Feng-shan Pan
A1 - Xiao-e Yang
J0 - Journal of Zhejiang University Science B
VL - 15
IS - 4
SP - 365
EP - 374
%@ 1673-1581
Y1 - 2014
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.B1300263

Abstract
Chinese Summary
Academic Network
Reviewer Comment

Abstract: zinc (Zn) deficiency and water scarcity are major challenges in rice (Oryza sativa L.) under an intensive rice production system. This study aims to investigate the impact of water-saving management and different Zn fertilization source (ZnSO₄ and Zn-EDTA) regimes on grain yield and Zn accumulation in rice grain. Different water managements, continuous flooding (CF), and alternate wetting and drying (AWD) were applied during the rice growing season. Compared with CF, the AWD regime significantly increased grain yield and Zn concentrations in both brown rice and polished rice. Grain yield of genotypes (Nipponbare and Jiaxing27), on the average, was increased by 11.4%, and grain Zn concentration by 3.9% when compared with those under a CF regime. Zn fertilization significantly increased Zn density in polished rice, with a more pronounced effect of ZnSO₄ being observed as compared with Zn-EDTA, especially under an AWD regime. Decreased phytic acid content and molar ratio of phytic acid to Zn were also noted in rice grains with Zn fertilization. The above results demonstrated that water management of AWD combined with ZnSO₄ fertilization was an effective agricultural practice to elevate grain yield and increase Zn accumulation and bioavailability in rice grains.

通过锌肥和适宜的水分管理提高水稻籽粒产量及锌积累量

研究目的：在生产高度集约化体系下，研究节水灌溉措施及锌肥对水稻产量及锌积累量的影响。
创新要点：目前关于干湿交替能否对水稻增产仍存在争议，对锌含量及生物有效性也鲜有报道。因此，针对这些问题，本文系统地研究影响水稻产量及品质的两大限制性因素，即锌肥和灌溉方式对稻米锌生物有效性的影响。
研究方法：采用盆钵试验模拟大田锌肥及水分管理方式，两种基因型、两种锌肥种类、两种水分管理，三个重复控制误差。利用电感耦合等离子体质谱（ICP-MS）测定微量元素锌含量，以精米中植酸含量表征锌生物有效性。
重要结论：干湿交替在增加了稻米产量、锌含量及积累量方面效果显著。干湿交替结合土施硫酸锌肥可以作为水稻生产体系中获得高产、高锌、高生物有效性的农艺措施。

关键词：水稻；干湿交替；施肥；锌

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通过锌肥和适宜的水分管理提高水稻籽粒产量及锌积累量

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