浙江农业学报 ›› 2020, Vol. 32 ›› Issue (7): 1233-1240.DOI: 10.3969/j.issn.1004-1524.2020.07.12

• 环境科学 • 上一篇    下一篇

秸秆堆肥部分替代化肥配施硝化抑制剂对冬小麦温室气体排放的影响

吴承杰1, 任兰天1,2,3,*, 郝冰3, 邵庆勤1, 王泓1, 陈峰1, 代高峰1, 梅世远1, 张从军2   

  1. 1.安徽科技学院 农学院,安徽 凤阳 233100;
    2.安徽莱姆佳生物科技股份有限公司 农业农村部生物有机肥创制重点实验室,安徽 蚌埠 233400;
    3.蚌埠绿都秸秆生物科技股份有限公司,安徽 蚌埠 233000
  • 收稿日期:2019-10-17 出版日期:2020-07-25 发布日期:2020-07-28
  • 通讯作者: *任兰天,E-mail:sky1981007@163.com
  • 作者简介:吴承杰(1995—),男,江苏常熟人,硕士研究生,主要从事秸秆综合利用研究。E-mail:1027616862@qq.com
  • 基金资助:
    安徽省科技重大专项(18030701190); 安徽省高校自然科学基金(KJ2018A0527,KJ2019A0810); 国家重点研发计划(2018YFF0213502-3,2018YFF0213501-4); 安徽省教育厅2019年度振兴计划(gxyq2019061)

Effect of crop residue compost replacing part of chemical fertilizer and nitrification inhibitor on greenhouse gas emission of winter wheat

WU Chengjie1, REN Lantian1,2,3,*, HAO Bing3, SHAO Qingqin1, WANG Hong1, CHEN Feng1, DAI Gaofeng1, MEI Shiyuan1, ZHANG Congjun2   

  1. 1. College of Agriculture, Anhui Science and Technology University, Fengyang 233100, China;
    2. Anhui Laimujia Biological Technology Co,. Ltd., Key Laboratory of Bio-Organic Fertilizer Creation, Ministry of Agriculture and Rural Affairs, Bengbu 233400, China;
    3. Bengbu Ludu Crop Residue Biotechnology Co., Ltd., Bengbu 233000, China
  • Received:2019-10-17 Online:2020-07-25 Published:2020-07-28

摘要: 针对沿淮地区冬小麦生产中化肥投入过量、利用率低、温室气体排放高的现状,采用秸秆堆肥部分替代化肥配施硝化抑制剂的方法,以秸秆堆肥部分替代化肥为主区(T)、硝化抑制剂——双氰胺(DCD)使用量为裂区(D)设计试验,研究其对麦田N2O、CO2、CH4排放通量动态变化,以及小麦产量、品质的影响。结果表明:7.5 t·hm-2秸秆堆肥替代10%化肥+60 kg·hm-2 DCD和15 t·hm-2秸秆堆肥替代20%化肥+60 kg·hm-2 DCD处理的温室气体排放总量比传统施肥显著(P<0.05)降低了19.01%和31.76%,小麦支链淀粉含量分别显著(P<0.05)提升10.00%和14.00%,产量较传统施肥并无显著差异。说明秸秆堆肥部分替代化肥配施硝化抑制剂的方法对小麦产量并无显著负面影响,且有利于温室气体减排和秸秆的资源化利用。

关键词: 秸秆堆肥, 硝化抑制剂, 小麦, 温室气体

Abstract: In view of the current situation of excessive chemical fertilizer input, low utilization rate and high greenhouse gas emission in winter wheat production along the Huaihe River, the dynamic changes of nitrous oxide (N2O), carbon dioxide (CO2) and methane (CH4) emission flux and its influence on wheat yield and quality were studied under the design of replacing part of chemical fertilizer by crop residue compost in the main area (T) and dicyandiamide (DCD) as the split plot (D). The results showed that the total greenhouse gas emissions of the treatments of 7.5 t·hm-2 crop residue compost replacing 10% chemical fertilizer+60 kg·hm-2 DCD and 15 t·hm-2 crop residue compost replacing 20% chemical fertilizer+60 kg·hm-2 DCD were significantly (P<0.05) lower than those of the traditional fertilization by 19.01% and 31.76%, respectively. Besides, the amylopectin contents in wheat under the above treatments were significantly (P<0.05) increased by 10.00% and 14.00%, respectively. While, there was no significant decrease in wheat yield. Therefore, it was feasible to reduce greenhouse gas emission by replacing part of chemical fertilizer with crop residue compost along with DCD. This method showed no negative effect on wheat yield and was beneficial for greenhouse gas emission reduction and utilization of crop residue.

Key words: crop residue compost, nitrification inhibitor, wheat, greenhouse gases

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