[1]马鹏,张宇杰,林郸,等.油-稻轮作下前茬氮肥投入与稻季氮肥运筹对稻田土壤养分、碳库及作物产量的影响[J].江苏农业学报,2020,(04):896-904.[doi:doi:10.3969/j.issn.1000-4440.2020.04.013]
　MA Peng,ZHANG Yu-jie,LIN Dan,et al.Effects of nitrogen fertilizer input and rice season nitrogen fertilizer application on soil nutrients, carbon pool and yield in rape-rice rotation[J].,2020,(04):896-904.[doi:doi:10.3969/j.issn.1000-4440.2020.04.013]
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油-稻轮作下前茬氮肥投入与稻季氮肥运筹对稻田土壤养分、碳库及作物产量的影响()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2020年04期
页码:
896-904
栏目:
耕作栽培·资源环境
出版日期:
2020-08-31

文章信息/Info

Title:
Effects of nitrogen fertilizer input and rice season nitrogen fertilizer application on soil nutrients, carbon pool and yield in rape-rice rotation
作者:
马鹏; 张宇杰; 林郸; 吕旭; 伍杂日曲; 舒川海; 杨志远; 孙永健; 马均
(四川农业大学水稻研究所/作物生理生态及栽培四川省重点实验室，四川温江611130）
Author(s):
MA Peng; ZHANG Yu-jie; LIN Dan; LYU Xu; WUZA Ri-qu; SHU Chuan-hai; YANG Zhi-yuan; SUN Yong-jian; MA Jun
(Rice Research Institute of Sichuan Agricultural University/Key Laboratory of Crop Physiology, Ecology and Cultivation in Sichuan Province, Wenjiang 611130, China)
关键词:
油-稻轮作; 减量施氮; 氮肥运筹; 碳库; 产量
Keywords:
rape-rice rotation; reduced nitrogen application; nitrogen fertilizer application; carbon pool; yield
分类号:
S158
DOI:
doi:10.3969/j.issn.1000-4440.2020.04.013
文献标志码:
A
摘要:
通过2017-2019年2年大田定位试验，研究了油-稻轮作下前茬氮肥投入量与稻季氮肥运筹对稻田土壤养分、碳库及作物产量的影响。在油菜季设置常规施氮(N 180 kg/hm2，Nc)、减量施氮(N 150 kg/hm2，Nr)2个处理，水稻季在N 150 kg/hm2用量基础上设置3个运筹M1、M2和M3，其基肥、分蘖肥、穗肥配比分别为2∶2∶6、3∶3∶4和4∶4∶2，以不施氮为对照(M0）。结果表明：2年试验结果基本一致，稻田土壤养分含量和碳库年度间表现为2019年略高于2018年，而水稻产量和周年产量则表现为2019年略低于2018年。油菜季减量施氮(Nr）相对于常规施氮(Nc）提高了稻田土壤有机质、速效磷、总有机碳、微生物碳的含量。在油菜季Nc和Nr处理下，稻季M3氮肥运筹下土壤总有机碳含量显著高于M0、M1和M2，而M1和M2处理间差异不显著。相对于油菜Nc，油菜季Nr与稻季M3运筹下的稻田有机质、全氮、速效磷、土壤总有机碳、微生物碳含量和水稻产量2年平均分别增加了16.07%、1.07%、2.29%、4.18%、45.73%和1.45%，作物周年产量下降3.63%，但不显著。从资源高效和环境效益方面综合考虑，油菜季减少氮肥投入30 kg/hm2，配合稻季M3 (基肥∶分蘖肥∶穗肥=4∶4∶2)运筹模式是提高油-稻轮作体系稻田固碳、土壤养分状况和稳定作物产量的较好生产模式。
Abstract:
In order to reveal the effects of nitrogen fertilizer input and nitrogen fertilizer application in rice season on paddy field soil nutrients, carbon pool and crop yield in rape-rice rotation, a field experiment was conducted in 2017-2019. In this rotation system, conventional nitrogen rate (180 kg/hm2 in rape season, Nc) and reduced nitrogen rate (150 kg/hm2in rape season, Nr) were set up. Based on the application rate of 150 kg/hm2 nitrogen in rice season, three models named M1-M3 were also set up, and the application rate of base fertilizer, tillering fertilizer and panicle fertilizer was 2∶2∶6， 3∶3∶4 and 4∶4∶2， respectively．The results showed that the two-year test results were basically the same. The soil nutrient content and carbon pool performance in 2019 were slightly higher than those in 2018, while the rice yield and annual yield in 2019 were slightly lower than those in 2018. Compared with conventional nitrogen application, the reduced nitrogen application in rape season increased the contents of paddy soil organic matter, available phosphorus, total organic carbon and microbial carbon. Under the Nc and Nr treatments in the rape season, the total organic carbon content of the soil under the M3 treatment in the rice season was significantly higher than that under M0, M1 and M2 treatments, but the differences between the M1 and M2 treatments were not significant. Compared with Nc treatment, the contents of organic matter, total nitrogen, available phosphorus, total soil organic carbon microbial carbon and rice yield under Nr treatment in rape season and M3 treatment in rice season increased by 16.07%,1.07%, 2.29%, 4.18%,45.73% and 1.45%, respectively, the annual crop yield decreased by 3.63%, but the difference was not significant. Considering the resource efficiency and environmental benefits, Nr treatment in the rape season combines with M3 treatment (basic fertilizer∶tillering fertilizer∶panicle fertilizer=4∶4∶2) in the rice season is best production model for improving carbon fixation in paddy fields, improving soil nutrient status, and stabilizing crop yield in rape-rice rotation system.

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备注/Memo

备注/Memo:
收稿日期：2020-05-06基金项目：国家重点研发计划项目(2017YFD0301701、2017YFD0301706、2018YFD0301202)；四川省育种攻关专项(2016NYZ0051)作者简介：马鹏(1989-)，男，宁夏固原人，博士研究生，主要进行水稻高产高效研究。(E-mail)1163299054@qq.com通讯作者：马均，(E-mail)majunp2002@163.com
更新日期/Last Update: 2020-09-08