CO2浓度升高和有机肥-化肥施用对水稻光合作用、抗氧化酶活性和重金属含量的影响

doi:10.14088/j.cnki.issn0439-8114.2023.12.011

湖北农业科学 ›› 2023, Vol. 62 ›› Issue (12): 51-55.doi: 10.14088/j.cnki.issn0439-8114.2023.12.011

CO₂浓度升高和有机肥-化肥施用对水稻光合作用、抗氧化酶活性和重金属含量的影响

徐芬^1,2, 郭红岩², 喻小兵³, 彭立军¹, 姚晶晶¹

1.湖北省农业科学院农业质量标准与检测技术研究所/农产品营养品质与安全湖北省重点实验室,武汉 430064;
2.污染控制与资源化研究国家重点实验室/南京大学环境学院,南京 210023;
3.荆门市农业农村局,湖北荆门 448000

收稿日期:2023-09-07 发布日期:2024-01-10
通讯作者: 姚晶晶,研究员,主要从事无机分析、农业环境修复等研究,（电子信箱）yyy0779@163.com。
作者简介:徐芬（1989-）,女,湖北荆州人,助理研究员,博士,主要从事农业环境与农产品质量安全研究,（电话）17720510201（电子信箱）xufen_nju@163.com。
基金资助:
武汉市知识创新专项（2023020201020431）

Effects of increasing CO₂ concentration and application of organic fertilizer and chemical fertilizer on photosynthesis, antioxidant enzyme activity and heavy metal content of rice

XU Fen^1,2, GUO Hong-yan², YU Xiao-bing³, PENG Li-jun¹, YAO Jing-jing¹

1. Institute of Agricultural Quality Standards and Testing Technology Research, Hubei Academy of Agricultural Sciences/Hubei Key Laboratory of Nutritional Quality and Safety of Agro-Products, Wuhan 430064, China;
2. State Key Laboratory of Pollution Control and Resource Reuse/School of Environment, Nanjing University, Nanjing 210023, China;
3. Jingmen Agriculture and Rural Bureau, Jingmen 448000,Hubei, China

Received:2023-09-07 Published:2024-01-10

摘要/Abstract

摘要： 依托中国水稻FACE平台（Free air CO₂ enrichment）,研究了化肥和50%有机肥等氮替代化肥2种施肥方式下,大气CO₂浓度升高（环境大气+200 μmol/mol）对水稻光合作用、抗氧化酶活性以及铜和锌吸收的影响。结果表明,单独大气CO₂浓度升高显著增加了抽穗期水稻叶片的净光合速率、丙二醛含量和成熟期水稻子粒中锌含量,但显著降低了抽穗期水稻叶片气孔导度和抗氧化酶活性。50%有机肥等氮替代化肥处理下,对比正常大气CO₂浓度,大气CO₂浓度升高显著增加了过氧化物酶活性,但降低了水稻叶片气孔导度和蒸腾速率、丙二醛含量和水稻子粒中铜和锌含量。因此,50%有机肥等氮替代化肥有助于提高水稻对CO₂浓度升高的适应性。

关键词: 大气CO₂浓度升高, 水稻, 有机肥替代化肥, 光合作用, 重金属含量, 抗氧化酶活性

Abstract: Relying on China's Rice FACE Platform （Free air CO₂ enrichment）, under two fertilization methods, namely, fertilizer and 50% organic fertilizer instead of chemical fertilizer, the effects of increasing atmospheric CO₂ concentration （ambient atmosphere +200 μmol/mol） on photosynthesis, antioxidant enzyme activity and copper and zinc absorption in rice were studied. The results showed that increasing CO₂ concentration significantly increased the net photosynthetic rate, and malondialdehyde content in rice leaves at the heading stage and zinc content in rice grains at the maturity stage, but significantly decreased the stomatal conductance and antioxidant enzyme activities of rice leaves at the heading stage. Under the treatment of chemical fertilizer replaced by 50% organic fertilizer （COF）, compared with the normal atmospheric CO₂ concentration, the increase of atmospheric CO₂ concentration significantly increased the peroxidase activity, but decreased the stomatal conductance and transpiration rate of rice leaves, the content of malondialdehyde and the contents of copper and zinc in rice grains. Therefore, the substitution of chemical fertilizer with 50% organic fertilizer at equal nitrogen application could help to improve the adaptability of rice to the increase of CO₂ concentration.

Key words: increasing CO₂ concentration, rice, substituting the chemical fertilizer with organic fertilizer, photosynthesis, heavy metal content, antioxidant enzyme activity

中图分类号:

徐芬, 郭红岩, 喻小兵, 彭立军, 姚晶晶. CO₂浓度升高和有机肥-化肥施用对水稻光合作用、抗氧化酶活性和重金属含量的影响[J]. 湖北农业科学, 2023, 62(12): 51-55.

XU Fen, GUO Hong-yan, YU Xiao-bing, PENG Li-jun, YAO Jing-jing. Effects of increasing CO₂ concentration and application of organic fertilizer and chemical fertilizer on photosynthesis, antioxidant enzyme activity and heavy metal content of rice[J]. HUBEI AGRICULTURAL SCIENCES, 2023, 62(12): 51-55.

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CO₂浓度升高和有机肥-化肥施用对水稻光合作用、抗氧化酶活性和重金属含量的影响

Effects of increasing CO₂ concentration and application of organic fertilizer and chemical fertilizer on photosynthesis, antioxidant enzyme activity and heavy metal content of rice

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