The focus of this study was to assess the utilization of library and information service delivery for effective scholarly communication output in Agricultural Research Institutes in North-Central. The study defined Current Awareness Services (CAS), Selective Dissemination of Information (SDI), Internet Services (IS), Inter-Library Loan Services (ILLS), Reference Services (RS) and Circulation Services (CS) as the aspects of library and information service delivery provided by agricultural research institutes in North Central Nigeria. The results of the assessment revealed that respondents in the agricultural research institutes libraries showed that CAS, SDI, IS, ILLS, RS and CS have a high extent of provision. Furthermore, the results identified slow Internet connectivity as the most important constraint for effective scholarly communication outputs. The study recommended that Agricultural Research Institutes Libraries in North Central Nigeria should intensify their efforts towards adequate provision of library and information services to enable effective scholarly communication outputs in Agricultural Research Institutes in North-Central. The study also recommended occasional training for academic staff in order to improve their skills in accessing appropriate information materials in the Agricultural Research Institutes Libraries.