Morrow Plots: A Century of Agricultural Innovation

Established in 1876, the Morrow Plots represent a living laboratory that has shaped agricultural science for over a century. Named after George E. Morrow, the chair of the Agriculture Department, the plots were initially designed to study the long-term impacts of continuous cropping and crop rotation on soil fertility.Originally consisting of ten half-acre plots, the site has evolved over time, with only three plots remaining today. These remaining plots showcase different cropping systems, including continuous corn planting, corn and soybean rotation, and corn, oats, and alfalfa rotation. The experiments conducted here have provided invaluable insights into soil nutrient depletion, the benefits of crop rotation, and the effects of fertilizers.The Morrow Plots' contributions extend beyond academic research. The findings from these experiments have directly influenced farming practices, leading to increased crop yields and sustainable soil management techniques. The site was designated a National Historic Landmark in 1968, recognizing its significance in American agricultural history. Visitors can explore the plots and learn about their history through informational plaques, gaining a deeper understanding of the importance of agricultural research and innovation.