Rutillus H. Allen, an agricultural planning expert who helped to set policy here and abroad, died Friday at Washington Hospital Center of a stroke. He was 69.

Although he formally retired in 1974 from Robert R. Nathan Associates, a firm of economic consultants, Dr. Allen continued as a consultant not only for his former employer but for the World Bank and other organizations.

Dr. Allen lived in Afghanistan from 1961 to 1965 while working for the Nathan firm, and for two years in Ghana, where he directed the development of comprehensive planning in agriculture, transportation and water resources.

A native of Jay, Maine, Dr. Allen received a bachelor's degree in animal industry from the University of Maine in 1929, a master's in agricultural economics from the University of Connecticut in 1931, and a Ph.D. from the University of California at Berkeley in 1934.

After serving as an associate professor of land economics at the University of Kentucky, Dr. Alen worked here for the Department of Agricultural. During World War II and immediately after, he worked on international allocation of food supplies for the War Food Administration, as assistant to the food division administrator of the United Nations Relief and Rehabilitation Administration and with the United Nations Food and Agriculture Organization. Dr. Allen then served in the European office of the U.S. Marshall Plan agency as director of the food and agricultural division.

From 1953 to 1961, Dr. Allen owned and operated a livestock farm near Harrisburg, Pa., on which he lived except for two years when he worked in Iran as an agricultural adviser sponsored by the Ford Foundation.

He is survived by his wife, Betty Bell Allen, of Washington.

The family suggests that expressions of sympathy may be in the form of contributions to the R.H. Allen Scholarship Fund, Alumni Center, University of Maine at Orono.