[1]王保君,金海刚,张红梅,等.浙北地区秸秆全量还田下氮肥用量对单季晚粳稻生长和土壤养分、碳库的影响[J].水土保持研究,2021,28(02):60-66.
　WANG Baojun,JIN Haigang,ZHANG Hongmei,et al.Effects of Nitrogen Application on Late Single Season Japonica Rice Growth, Soil Nutrient and Carbon Pool Under Full Straw Returning in Northern Zhejiang Province[J].Research of Soil and Water Conservation,2021,28(02):60-66.
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浙北地区秸秆全量还田下氮肥用量对单季晚粳稻生长和土壤养分、碳库的影响

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 28 期数: 2021年02期 页码: 60-66 栏目: 出版日期: 2021-02-06
Title:
Effects of Nitrogen Application on Late Single Season Japonica Rice Growth, Soil Nutrient and Carbon Pool Under Full Straw Returning in Northern Zhejiang Province
文章编号:
1005-3409(2021)02-0060-07
作者:
王保君1, 金海刚2, 张红梅1, 沈亚强1, 陈 贵3, 鲁晨妮3, 程旺大 1
(1.嘉兴市农业科学研究院 生态环境研究所, 浙江 嘉兴 314016; 2.海宁市农业农村局, 浙江 嘉兴 314400; 3.嘉兴市农业科学研究院 生物技术研究所, 浙江 嘉兴 314016)
Author(s):
WANG Baojun1, JIN Haigang2, ZHANG Hongmei1, SHEN Yaqiang1, CHEN Gui3, LU Chenni3, CHENG Wangda 1
(1.Institute of Eco-environmental Sciences, Jiaxing Academy of Agricultural Science, Jiaxing, Zhejiang 314016, China; 2.Haining Agricultural and Rural Bureau, Jiaxing, Zhejiang 314400, China; 3.Institute of Biotechnology Research, Jiaxing Academy of Agricultural Science, Jiaxing, Zhejiang 314016, China)
关键词:
水稻;  秸秆全量还田;  氮肥;  植物生长;  养分;  碳库
Keywords:
rice;  total rice straw returning;  nitrogen;  plant growth;  soil nutrient;  carbon pool
分类号:
S147.2
文献标志码:
A
摘要:
为了明确浙北地区秸秆全量还田下单季晚粳稻适宜的施氮量,通过大田试验,采用随机区组设计,根据当地农户施肥习惯,设置4种施氮水平(以纯氮计,N0,不施氮; NL,165 kg/hm2; NM,240 kg/hm2; NH,315 kg/hm2),研究了浙北地区秸秆全量还田下氮肥调控对单季晚粳稻生长和土壤养分、碳库的影响。结果表明:NM和NH的水稻分蘖数、株高、叶面积系数、叶绿素含量及地上部分干物质重均高于其他处理。在稻田土壤方面,NM的土壤速效磷和速效钾含量较N0,NL和NH处理分别显著(p<0.05)增加了43.16%,30.13%,13.13%和31.86%,22.13%,15.81%; NM的可溶性有机碳和微生物有机碳含量较N0和NL处理分别显著(p<0.05)增加了88.47%,13.99%和37.10%,15.39%。在产量方面,NM的产量最高,较N0,NL和NH处理分别增产51.70%,15.39%,9.45%。综上所述,在本试验条件下,秸秆全量还田施用240 kg/hm2纯氮为浙北地区单季晚粳稻最佳氮肥调控模式。
Abstract:
In order to determine the appropriate nitrogen application amount of single season late japonica rice under the full amount of rice straw returning to field in northern Zhejiang Province, the field experiment was carried out, and the random block group design was adopted. Four nitrogen application levels such as no nitrogen application(N0), 165 kg/hm2(NL), 240 kg/hm2(NM), and 315 kg/hm2(NH)were set according to the fertilization practice of local farmers. We investigated the effects of nitrogen application on the growth, soil nutrients and carbon pool of single-season late japonica rice in northern Zhejiang Province under the condition of full straw returning to field. The results showed that: rice tillering number, plant height, leaf area index, chlorophyll content and dry matter of aerial part weight under treatments of NM and NH were higher than other treatments; in terms of paddy under the straw returning full amount, the soil available phosphorus, available potassium of NM significantly increased by 43.16%, 30.13%, 13.13% and 31.86%, 22.13%, 15.81%(p<0.05), respectively, compared with N0, NL and NH treatments; the dissolved organic carbon and the soil microbial biomass organic carbon of NM significantly increased by 88.47%, 13.99% and 37.10%, 15.39%(p<0.05), respectively, compared with N0 and NL treatment; in terms of yield, the highest yield was found in treatment NM, which was 51.70%, 15.39% and 9.45% higher than N0, NL and NH treatments, respectively. In conclusion, under the setting conditions of this experiment, pure nitrogen rate of 240 kg/hm2 was the best nitrogen fertilizer regulation model for single-season late japonica rice in northern Zhejiang Province under the full straw returning to the field.

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备注/Memo

收稿日期:2020-06-11 修回日期:2020-06-22
资助项目:嘉兴市科技计划(2017AZ13025,2016BZ26006,2018AY11020); 浙江省农业重大技术协同推广计划(2019XTGLY01); 浙江省重大研发计划(2016C02050-3)
第一作者:王保君(1990—),男,山西繁峙县人,硕士,助理农艺师,主要从事耕作制度与农业生态研究。E-mail:wbj19901012@163.com 通信作者:程旺大(1971—),男,浙江桐乡人,博士,研究员,主要从事农业生态与环境研究。E-mail:chwd228@163.com

更新日期/Last Update: 2021-02-10