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- W2357529462 abstract "Pot experiments and were carried out respectively to study the effects of different potassium application on soil nitrogen uptake,fertilizer nitrogen uptake,nodule nitrogen fixation and their proportion and yield of peanut(Arachis Hypogaea L.) by 15N tracer technique,and explore the reasons,which may provide a theoretical basis and technical guidance for peanut production in the scientific fertilizer application.Results showed that nitrogen in peanut all mainly accumulated in the kernel for different treatments of potassium fertilizer application.However,with increasing of potassium application,the increasing extent of nitrogen content of stems was the biggest during all the peanut organs,with nut shells the smallest.Properly increasing the amount of potassium can improve nitrogen content,15N abundance,nitrogen and 15N accumulation of every organ,and promote absorption and utilization three nitrogen-source especially with the most effect for the kernel biomass(economic output).The ratio of fertilizer nitrogen,soil nitrogen and atmospheric nitrogen absorbed by peanut was respectively between 12.37%-13.10%,38.29%-45.10%,and 42.53%-48.31% respectively.Properly increasing potassium fertilizer application improved the absorption ratio of fertilizer nitrogen and nodule nitrogen fixation,reduced the proportion of soil uptake and enhanced fertilizer nitrogen use efficiency.However,the influences of excessive application of potassium fertilizer decreased." @default.
- W2357529462 created "2016-06-24" @default.
- W2357529462 creator A5050040628 @default.
- W2357529462 date "2013-01-01" @default.
- W2357529462 modified "2023-09-26" @default.
- W2357529462 title "EFFECTS OF POTASSIUM APPLICATION ON THE ACCUMULATED NITROGEN SOURCE AND YIELD OF PEANUT" @default.
- W2357529462 hasPublicationYear "2013" @default.
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