Manure Management

Indiana generates large quantities of various organic wastes, such as animal manure from farms, agro-industrial wastes from ethanol production and food processing plants, food wastes from supermarkets, and municipal wastewater from cities and towns.

Organic wastes can cause environmental pollution to affect water and air quality, but can also be turned from a liability to an asset through appropriate management and utilization.

Indiana animal agriculture produces approximately 9.51 million tons of animal manure each year (Table 1), equivalent to about 1.45 tons per resident per year.

Manure contains rich nutrients and can be used as organic fertilizers (Figure 1). Manure and other wastes can be used to produce renewable energy via anaerobic digestion (Figure 2) or thermo-conversion.

This website is designed to provide technical, economic, environmental and regulatory information resources related to organic waste management..

Web site contact:


Jiqin (JQ) Ni, Ph.D.

Agricultural and Biological Engineering

225 S University St

West Lafayette, Indiana 47907

Phone: 765 496 1733

Fax: 765 496 1115


Manure management information resource

Figure 1. Dairy manure goes through composting in Indiana

Figure 2. Dairy manure is converted to biogas that is used to generate electricity at Fair Oaks Farms, Indiana..

Manure is an organic waste. Organic wastes contain compounds of a biological origin and are typically originated from animal and plant materials such as animal manure, food, green and garden waste, biosolids, sludge, paper, and cardboard. Organic wastes can be biodegraded by other living organisms.

Purdue University Manure Management Extension Team

Table 1. Estimated manure production from animal agriculture in Indiana.

Department of Agri. & Biol. Eng.

Jiqin (JQ) Ni


Phone: 765-496-1733

Jennifer A Rackliffe


Phone: 719-210-3187


Department of Animal Sciences

Brian Richert


Phone: 765-494-4837

John S Radcliffe


Phone: 765-496-7718


County Extension Offices

Bryan Overstreet (Jasper County)


Phone: 219-866-5741

Brad Kohlhagen (Adams County)


Phone: 260-724-5322

Kenneth Eck (Dubois County)


Phone: 812-482-1782


Livestock and poultry

Manure production, million tons/year



Beef and dairy




Sheep and horse