Effects of Nitrification Inhibitor Dicyandiamide Application on Rice Yield and Greenhouse Gas Emissions

doi:10.3969/j.issn.1006-8082.2024.01.004

China Rice ›› 2024, Vol. 30 ›› Issue (1): 26-29.DOI: 10.3969/j.issn.1006-8082.2024.01.004

• Special Thesis & Basic Research • Previous Articles Next Articles

Effects of Nitrification Inhibitor Dicyandiamide Application on Rice Yield and Greenhouse Gas Emissions

CHEN Yun(), MENG Yi, WENG Wenan, CHEN Yuqiong, ZHANG Hongcheng, LIAO Ping^*()

Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops/College of Agriculture, Yangzhou University/Research Institute of Rice Industrial Engineering Technology, Yangzhou University, Yangzhou, Jiangsu 225009, China

Received:2023-07-09 Online:2024-01-20 Published:2024-01-23
Contact: *p.liao@yzu.edu.cn
About author:1st author: y_chen2022@163.com

硝化抑制剂双氰胺施用对水稻产量和温室气体排放的影响

陈云(), 孟轶, 翁文安, 陈雨琼, 张洪程, 廖萍^*()

江苏省作物栽培生理重点实验室/江苏省作物遗传生理重点实验室/江苏省粮食作物现代产业技术协同创新中心/扬州大学农学院/扬州大学水稻产业工程技术研究院，江苏扬州 225009

通讯作者: *p.liao@yzu.edu.cn
作者简介:第一作者：y_chen2022@163.com
基金资助:
中国博士后科学基金面上项目(2022M722702);扬州大学高层次人才启动基金(137012328);江苏高校优势学科建设工程资助项目(PAPD)

Abstract

Abstract:

A pot experiment was conducted to investigate the effects of applying nitrification inhibitor dicyandiamide on rice yield and greenhouse gas emissions with the conventional japonica rice variety Nanjing 9108 as the test material. Two treatments: conventional nitrogen fertilizer (CK) and conventional nitrogen fertilizer combined with dicyandiamide (DCD) were set up. The results showed that compared to CK, DCD treatment significantly increased rice yield (15.1%) and aboveground biomass (28.4%), but reduced methane (CH₄) emissions (22.2%), nitrous oxide (N₂O) emissions(56.0%), area-scaled global warming potential (GWP)(24.4%), and yield-scaled GWP(GHGI)(31.7%). It can be seen that DCD can increase grain yield and mitigate greenhouse gas emissions simultaneously in rice field.

Key words: nitrification inhibitor, dicyandiamide, rice, yield, methane, nitrous oxide, paddy field

摘要：

为探究施用硝化抑制剂双氰胺对水稻产量和温室气体排放的影响，以常规粳稻品种南粳9108为供试材料进行盆栽试验，设置常规氮肥（CK）和常规氮肥配施硝化抑制剂双氰胺（DCD）2个处理。采用静态箱-气相色谱法连续监测稻田温室气体排放动态变化。结果表明，与CK相比，DCD显著提高了水稻产量（15.1%）和地上部生物量（28.4%），并且显著降低了稻田甲烷（CH₄）累积排放量（22.2%）、氧化亚氮（N₂O）累积排放量（56.0%）、综合温室效应（GWP）（24.4%）和温室气体排放强度（GHGI）（31.7%）。可见，常规氮肥配施硝化抑制剂双氰胺可以协同实现水稻丰产和稻田温室气体减排。

关键词: 硝化抑制剂, 双氰胺, 水稻, 产量, 甲烷, 氧化亚氮, 稻田

CLC Number:

S511.062

CHEN Yun, MENG Yi, WENG Wenan, CHEN Yuqiong, ZHANG Hongcheng, LIAO Ping. Effects of Nitrification Inhibitor Dicyandiamide Application on Rice Yield and Greenhouse Gas Emissions[J]. China Rice, 2024, 30(1): 26-29.

陈云, 孟轶, 翁文安, 陈雨琼, 张洪程, 廖萍. 硝化抑制剂双氰胺施用对水稻产量和温室气体排放的影响[J]. 中国稻米, 2024, 30(1): 26-29.

Figures/Tables 4

References 29

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Effects of Nitrification Inhibitor Dicyandiamide Application on Rice Yield and Greenhouse Gas Emissions

硝化抑制剂双氰胺施用对水稻产量和温室气体排放的影响

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