The Northwestern Illinois Agricultural Research and Demonstration Center is a 320 acre facility, established in 1980 near Monmouth in Warren County. The Center is located on the very productive Argiudoll and Haplaquoll soils. Each year, approximately 50 different projects are conducted by up to 12 campus-based project leaders and the center superintendent. Subject matter areas involved in these projects include soil chemistry and fertility, soil management, crop production, weed science, entomology, plant pathology, pest management and environmental quality.