摘要
本研究旨在探究秸秆还田及氮磷钾养分管理对冬小麦籽粒灌浆特性及产量的影响。以‘济麦22’为实验品种,试验设置3个处理:T_(1)氮磷钾养分管理优化处理、T_(2)传统处理(CK)、T_(3)秸秆还田养分替代处理,研究了不同试验处理对冬小麦干物质积累与转运、籽粒灌浆相关参数、籽粒产量以及经济效益的影响。结果表明,与对照相比较,T_(1)处理显著提高了花后干物质在籽粒中的分配量及对籽粒的贡献率,分别提高43.46%和20.88%;提高了籽粒最大灌浆速率G_(max)与平均灌浆速率G_(mean),增幅分别为17.62%、3.09%;提高了穗粒数、千粒重以及籽粒产量,分别为5.72%、4.51%、12.15%。建议在与本试验自然环境及生产条件相似的地区,采用氮磷钾养分管理优化处理是可兼顾产量及经济效益的有效途径。
To investigate the effects of crop straw returning and nutrient management on the grain filling characteristics and yield of winter wheat,using‘JM22’as the test variety,three experimental treatments were set up,T_(1)was optimized nitrogen,phosphorus,and potassium nutrient management,T_(2)(CK)was traditional treatment,T_(3)was crop straw returning nutrient alternative treatment.This study investigated the effects of different experimental treatments on the accumulation and transport of dry matter in winter wheat,grain-filling related parameters,grain yield and economic benefits.The results showed that compared with the control,the T_(1)treatment significantly increased the allotment amount and contribution rate of dry matter in the grains after anthesis,increased by 43.46%and 20.88%respectively;it also improved the maximum grain filling rate(G_(max))and average grain filling rate(G_(mean)),with an increase of 17.62%and 3.09%respectively;it also increased the number of grains per ear,thousand-grain weight,and grain yield,by 5.72%,4.51%,and 12.15%respectively.It is recommended that in areas with similar natural environment and production conditions to this experiment,the optimization of nitrogen,phosphorus and potassium nutrient management is an effective way to take into account both yield and economic benefits.
作者
韩明明
牟群
李文倩
陈军
吕连杰
张海军
安霞
李晓宇
常振凯
HAN Mingming;MU Qun;LI Wenqian;CHEN Jun;LV Lianjie;ZHANG Haijun;AN Xia;LI Xiaoyu;CHANG Zhenkai(Zibo Academy of Agricultural Sciences,Zibo,Shandong 255000;Zibo Institute for Digital Agriculture and Rural Research,Zibo,Shandong 255051)
出处
《中国农学通报》
2024年第23期1-6,共6页
Chinese Agricultural Science Bulletin
基金
山东省现代农业产业技术体系创新团队建设资金专项“小麦产业淄博综合试验站项目”(SDAIT-01-16)。
关键词
冬小麦
秸秆还田
养分管理
灌浆特性
籽粒产量
经济效益
winter wheat
straw returning
nutrient management
grain filling characteristics
grain yield
economic benefits
