Passage: The state's iron-mining industry was established with the discovery of iron in the Vermilion Range and the Mesabi Range in the 1880s, and in the Cuyuna Range in the early 20th century. The ore was shipped by rail to Duluth and Two Harbors, then loaded onto ships and transported eastward over the Great Lakes.Industrial development and the rise of manufacturing caused the population to shift gradually from rural areas to cities during the early 20th century. Nevertheless, farming remained prevalent. Minnesota's economy was hard-hit by the Great Depression, resulting in lower prices for farmers, layoffs among iron miners, and labor unrest. Compounding the adversity, western Minnesota and the Dakotas were hit by drought from 1931 to 1935. New Deal programs provided some economic turnaround. The Civilian Conservation Corps and other programs around the state established some jobs for Indians on their reservations, and the Indian Reorganization Act of 1934 provided the tribes with a mechanism of self-government. This provided natives a greater voice within the state, and promoted more respect for tribal customs because religious ceremonies and native languages were no longer suppressed.After World War II, industrial development quickened. New technology increased farm productivity through automation of feedlots for hogs and cattle, machine milking at dairy farms, and raising chickens in large buildings. Planting became more specialized with hybridization of corn and wheat, and the use of farm machinery such as tractors and combines became the norm. University of Minnesota professor Norman Borlaug contributed to these developments as part of the Green Revolution. Suburban development accelerated due to increased postwar housing demand and convenient transportation. Increased mobility, in turn, enabled more specialized jobs.Minnesota became a center of technology after World War II. Engineering Research Associates was formed in 1946 to develop computers for the United States Navy. It later merged with Remington Rand,...

Question: Modernization of feeding and maintaining animals in addition to specialization of planting were helped by who during the Green Revolution?
Norman Borlaug