| 不同粒色小麦籽粒铁锌含量和生物有效性及其对氮磷肥的响应 |
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| 引用本文： | 黄鑫,李耀光,孙婉,侯俊峰,马英,张剑,马冬云,王晨阳,郭天财.不同粒色小麦籽粒铁锌含量和生物有效性及其对氮磷肥的响应[J].作物学报,2018,44(10):1506-1516. |
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| 作者姓名： | 黄鑫 李耀光 孙婉 侯俊峰 马英 张剑 马冬云 王晨阳 郭天财 |
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| 作者单位： | 河南农业大学农学院/国家小麦工程技术研究中心;河南农业大学食品科技学院;河南农业大学/省部共建小麦玉米作物学国家重点实验室 |
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| 基金项目： | This study was supported by the National Key Research and Development Program of China(2016YFD0300400);the Natural Science Foundation of Henan Province(162300410137) |
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| 摘 要： | 明确不同粒色小麦籽粒铁锌含量和生物有效性及其对氮磷肥配施的响应,对小麦高产优质高效生产具有重要意义。本文以6个不同粒色(白粒、红粒和黑粒)小麦品种为材料,在大田条件下研究了不同氮磷肥配比(N1:90 kg N hm~(–2); N_2:240 kg N hm~(–2); P1:60 kg P_2O_5 hm~(–2); P2:209 kg P_2O_5 hm~(–2))对小麦产量、籽粒铁锌含量及其生物有效性的影响。结果表明,不同品种籽粒铁锌含量和积累量存在年际间差异,黑粒小麦具有较高的铁锌生物有效性。小麦籽粒产量、铁锌含量及积累量在N2P1处理下最高;铁锌生物有效性在N2P2或N2P1处理下最高,两处理之间没有显著差异。红粒小麦扬麦15和扬麦22在N2P1水平下籽粒铁锌含量及其积累量最高, N2P2次之;黑粒小麦周黑麦1号和紫麦1号在N2P2水平下铁含量及其积累量最高, N2P1次之;不同品种的铁锌生物有效性多数在N2P1或N2P2水平下最高,表明适量增施氮肥,有利于提高籽粒产量、铁锌含量及其生物有效性。在本试验条件下综合考虑产量和效率,N2P1 (240 kg N hm~(–2)、60 kg P_2O_5 hm~(–2))处理对提高产量、增加籽粒铁锌含量及其生物有效性效果最佳。
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| 收稿时间： | 2018-01-30 |
Variation of Grain Iron and Zinc Contents and Their Bioavailability of Wheat Cultivars with Different-colored Grains under Combined Nitrogen and Phosphorus Fertilization |
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| Xin HUANG,Yao-Guang LI,Wan SUN,Jun-Feng HOU,Ying MA,Jian ZHANG,Dong-Yun MA,Chen-Yang WANG,Tian-Cai GUO.Variation of Grain Iron and Zinc Contents and Their Bioavailability of Wheat Cultivars with Different-colored Grains under Combined Nitrogen and Phosphorus Fertilization[J].Acta Agronomica Sinica,2018,44(10):1506-1516. |
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| Authors: | Xin HUANG Yao-Guang LI Wan SUN Jun-Feng HOU Ying MA Jian ZHANG Dong-Yun MA Chen-Yang WANG Tian-Cai GUO |
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| Institution: | 1.Agronomy College / National Engineering Research Center for Wheat, Henan Agricultural University, Zhengzhou 450046, Henan, China;2.Food and Science Technology College, Henan Agricultural University, Zhengzhou 450046, Henan, China;3.The National Key Laboratory of Wheat and Maize Crop Science / Henan Agricultural University, Zhengzhou 450046, Henan, China |
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| Abstract: | Six wheat cultivars with different-colored grains (white, red, and black) were used to investigate effects of combined N (N1: 90 kg N ha-1; N2: 240 kg N ha-1) and P (P1: 60 kg P2O5 ha-1; P2: 209 kg P2O5 ha-1) fertilization on grain yield, Fe and Zn contents and accumulation in grain, and their bioavailability in a two-year field experiment. Black-grain cultivars had a higher average Fe and Zn bioavailability than the red- and white-grain cultivars. Meanwhile, there were inter-annual differences in Fe and Zn contents and accumulation in grains among different wheat cultivars. Maximum grain yield, Fe and Zn contents and accumulation were observed under N2P1 treatment, while highest Fe and Zn bioavailability were observed under N2P2 or N2P1 treatment. Red-grain cultivars Yangmai 15 and Yangmai 22 got the highest Fe and Zn contents, and accumulation amount under N2P1 treatment. Black-grain cultivars Zhouheimai 1 and Zimai 1 got the highest Fe content and accumulation amount under N2P2 treatment, followed by N2P1. Most cultivars had the highest Fe and Zn bioavailability under N2P1 or N2P2 treatment, which indicated that increasing N application results in a higher grain yield, Fe and Zn contents, and their bioavailability. In this experiment, wheat cultivars would benefit from N2P1 treatment in terms of grain yield, Fe and Zn contents, and their bioavailability. |
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| Keywords: | wheat nitrogen and phosphorus combinations grain yield iron and zinc contents bioavailability |
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