不同养分管理措施对稻田和旱地油菜产量的影响及其对冻害的响应  

Effects of different nutrient management practices on oilseed rape yield and their response to freezing stress between upland and paddy-upland rotations

作　　者：盛倩男 方娅婷 赵剑 杜思垚 胡行珍 余秋华 朱俊[1] 任涛[1] 鲁剑巍[1] SHENG Qian-Nan;FANG Ya-Ting;ZHAO Jian;DU Si-Yao;HU Xing-Zhen;YU Qiu-hua;ZHU Jun;REN Tao;LU Jian-Wei(College of Resources and Environment,Huazhong Agricultural University/Key Laboratory of Arable Land Conservation(Middle and Lower Reaches of Yangtze River),Ministry of Agriculture and Rural Affairs/Microelement Research Center,Wuhan 430070,Hubei,China;Hubei Provincial General Station of Cultivated Land Quality and Fertilizer,Wuhan 430070,Hubei,China)

机构地区：[1]华中农业大学资源与环境学院/农业农村部长江中下游耕地保育重点实验室/微量元素研究中心,湖北武汉430070 [2]湖北省耕地质量与肥料工作总站,湖北武汉430070

出　　处：《作物学报》2025年第5期1286-1298,共13页Acta Agronomica Sinica

基　　金：国家重点研发计划项目“长江中下游水旱轮作区中低产田障碍消减与产能提升综合模式与应用”(2023YFD1901100);湖北省现代农业产业技术体系油菜产业技术体系项目(2023HBSTX4-03);财政部和农业农村部国家现代农业产业技术体系建设专项(CARS-12)资助。

摘　　要：蕾薹期冻害是限制冬油菜产量提升的关键因素之一,优化养分管理措施可有效缓解油菜冻害胁迫。在2023/2024年,我国长江流域经历了2轮寒潮天气,油菜生产均受到不同程度减产。为探究不同养分管理措施对稻田油菜(水稻-油菜)和旱地油菜(玉米-油菜)生长的影响及其对冻害的响应,利用湖北省沙洋县田间长期定位试验,结合2022/2023和2023/2024年2个油菜生长季的气象因子,以稻田油菜(水稻-油菜轮作)和旱地油菜(玉米-油菜轮作) 2种油菜种植方式为主处理,以不施肥(CK)、习惯施肥(CF)、优化施肥(NPK)和优化施肥+秸秆+有机肥(NPK+S+M)4个处理作为副处理,分析油菜产量、产量构成因子和地上部生物量,并进一步得出2种轮作模式下油菜对冻害胁迫的响应差异。研究表明, 2022/2023年(对照年)旱地油菜产量较稻田油菜高(CK处理除外),而在2023/2024年(冻害年)稻田油菜产量均高于旱地油菜。在CK、CF、NPK和NPK+S+M处理,稻田油菜的冻害减产率分别为74.9%、54.6%、61.1%、68.1%,旱地油菜的冻害减产率分别为70.8%、71.7%、69.0%、71.6%。冻害对稻田和旱地油菜的单株角果数影响最大,分别平均减少28.3%和29.7%;其次是千粒重,分别平均降低16.5%和38.8%,且冻害后增加了千粒重对油菜产量的贡献度。油菜地上部生物量对不同养分管理和冻害的响应程度与产量趋势一致。进一步对油菜生长指标和气象因子进行相关性分析,得出油菜产量与受冻害时期的平均最高气温呈显著正相关,与≤0℃天数、≤–3℃天数和总降雨量呈负相关。综上,旱地油菜和稻田油菜产量对适应低温胁迫的敏感程度存在差异并受到养分管理的影响,稻田油菜的抗冻效果优于旱地油菜,油菜生长应该提供充足的养分条件,以习惯施肥处理最佳。Freezing stress during the bolting stage is one of the critical factors limiting the yield increase of winter oilseed rape.Optimizing nutrient management practices can effectively mitigate cold damage stress in oilseed rape.During the 2023/2024 growing season,the Yangtze River Basin in China experienced two rounds of cold waves,resulting in varying levels of reduction in oilseed rape production.To investigate the effects of different nutrient management strategies on the growth of paddy oilseed rape(rice-oilseed rape rotation)and upland oilseed rape(maize-oilseed rape rotation),as well as their responses to freezing stress,a field experiment was conducted in Shayang county,Hubei province.The study incorporated meteorological data across two oilseed rape growing seasons(2022/2023 and 2023/2024).The main treatments were two planting patterns:paddy-grown oilseed rape in rice-oilseed rape rotation and upland oilseed rape in maize-oilseed rape rotation.The subplot treatments included no fertilizer(CK),conventional fertilization(CF),optimized fertilization(NPK)and optimized fertilization+straw+organic fertilization(NPK+S+M).The analysis encompassed oilseed rape yield,yield components and shoot biomass,further revealing the differential response of oilseed rape to freezing stress across the two rotations.The results showed that in 2022/2023(control year),upland oilseed rape had higher yields than paddy oilseed rape.However,in 2023/2024(freezing stress year),paddy oilseed rape outperformed upland oilseed rape in terms of yield.Under CK,CF,NPK,and NPK+S+M treatments,the yield reduction rates caused by freezing stress were 74.9%,54.6%,61.1%and 68.1%in paddy fields,and 70.8%,71.7%,69.0%,71.6%in upland fields,respectively.Freezing stress had the greatest impact on the number of siliques per plant reducing it by an average of 28.3%in paddy fields and 29.7%in upland fields.Following this,the 1000-seed weight was affected,with an average reduction of 16.5%in paddy field and 38.8%in upland fields.Notably,after freezing stress,th

关 键 词：养分管理 水稻-油菜轮作 玉米-油菜轮作 冻害 油菜籽产量 

分 类 号：S565.4[农业科学—作物学]