摘要
花生连作严重影响花生产量和品质。设连续3年冬小麦压青试验,以连作花生田为对照,研究年际间及0~60 cm剖面土层碱解氮、速效磷和土壤碳含量及运移特征。结果表明,冬小麦压青对不同养分元素在不同土层深度的含量影响不同,压青3年后,0~60 cm土层土壤碱解氮、速效磷含量和全碳含量较连作处理的增幅分别为10.47%~30.85%、33.19%~99.88%和127.36%~181.10%。花生不同生育时期对不同养分需求不一,苗期至盛花期吸收利用C和P营养元素较多,而对N素的吸收利用则从萌发一直持续到结荚期。盛花期过后,花生对20~40 cm土层养分利用率增加。
Continuous cropping seriously affects peanut yield and quality.Three consecutive years of experiment on winter wheat turnover was conducted,and continuous cropping peanut field was used as control to study the content and transport characteristics of alkali hydrolyzed nitrogen,available phosphorus and soil carbon during the years and in the 0~60 cm profile soil layer.The results showed that winter wheat turnover had different effects on the contents of different nutrients in soil with different depths.The content of soil alkali hydrolyzed nitrogen,available phosphorus,and total carbon in the 0~60 cm soil layer increased as 10.47%~30.85%,33.19%~99.88%,and 127.36%~181.10%respectively after three years of winter wheat turnover comparing with that of the continuous cropping treatment.The demand of peanut for different nutrients was varied among different development periods,performing as that more of C and P elements were absorbed and utilized from seedling to flowering stages,while the uptake of N elements continued from germination to pod-setting stages.After the flowering stage,the nutrients utilization of peanuts increased in the 20~40 cm soil layer.
作者
李泽伦
张晨
田姝红
丁红
张冠初
梁新波
石书兵
张智猛
LI Ze-lun;ZHANG Chen;TIAN Shu-hong;DING Hong;ZHANG Guan-chu;LIANG Xin-bo;SHI Shu-bing;ZHANG Zhi-meng(College of Agronomy,Xinjiang Agricultural University,Urumqi 830052,China;Shandong Peanut Research Institute,Qingdao 266100,China;Tangshan Campus of Central Agricultural Radio and Television School,Tangshan 063000,China)
出处
《花生学报》
北大核心
2021年第1期70-74,80,共6页
Journal of Peanut Science
基金
国家重点研发计划项目(2018YFD0201000)
山东省现代农业产业技术体系创新团队(花生)项目(SDAIT-04-06)
山东省农业科学院创新工程(CXGC2018B05)
山东省重大科技创新工程项目(2019JZZY010702)。
关键词
冬小麦翻压
土壤养分
碱解氮
速效磷
全碳
winter wheat turnover
soil nutrient
alkali hydrolyzed nitrogen
available phosphorus
total carbon
