Research Results

Farming Systems

These projects have been supported by the Leopold Center. Click on a project name to read a printable summary of the key findings and other details. Full final reports are available from the Leopold Center by request.

Return to list of topics

Project Name [PDF] Project ID
NEW Quantifying the role of riparian management to control nonpoint source pollution of pasture and cropland streams One-page brief Full summary E2004-24
NEW Establishment of a field school for weed ecology and management One-page brief Full summary E2004-06
Investigation of the economic feasibility of pasture-based dairy operations in northwest Iowa   M2006-09
Bird nesting on rotationally grazed warm- and cool-season grass paddocks in southern Iowa   E2006-05
Devising a framework for implementing cattle-grazing, fire on grassland in southern Iowa   E18-2006
Economically optimal enterprise mix for Iowa farms   E01-2004
Integrating hunting and grazing: Loess Hills and south central Iowa on-farm management experiences   E2004-43
Integrating hunting and grazing - a southern Iowa investigation   2003-E6
Some alternatives for multiple use land management in southern Iowa   2003-P1
Improving farm nutrient management by optimizing organic matter inputs and root health   2002-41
Incorporating grassland agriculture into row crop production systems   2002-39
Soil amendment effects of crop-weed interactions   2000-11
Managing weeds by integrating smother plants, cover crops and alternative soil management   1999-03
Small grain and annual forage legume intercrops for Iowa   1998-68
Economic analysis of variable rate management for corn and soybean systems   1997-48
Spring-seeded smother plans for week control in corn and soybeans   1996-03
Demonstration of an annual forage crop integrated with crop and livestock enterprises   1995-49
Potential economic, environmental benefits of narrow strip intercropping   1995-CS
Effect of tillage, crop rotation and innovative nitrogen and pesticide management practices on productivity, sustainability and water quality   1993-14
Supporting Leopold Center research through on-farm trials and demonstrations   1992-43
GIS-based environmental and economic analysis of integrated crop-livestock production systems in southern Iowa   1992-56
Sustainable agriculture: Vision for the future   1992-31
A comparison of agricultural systems at the Allee Research Center   1988-09 & 1991-36
The Model Farms Demonstration Project   1990-71
Fall-planted spring oats: A low-risk cover crop to reduce erosion following soybean   1990-10
Crops of ancient Iowa: native plants use and farming systems   1990-34
Evaluation of tillage and crop rotation effects on groundwater quality   1990-41
A developmental approach to the adoption of low-input farming practices   1989-35
Monitoring and modeling cropping system nitrogen for a sustainable agriculture   1988-19
On-farm demonstration program to reduce energy consumption and environmental impacts from row crop production   1988-25
Strip intercropping systems   1988-05 & 1988-06
Nitrogen efficiency with no-till and conventional tillage cropping systems for energy conservation and water quality benefits   1988-20
DeSoto National Wildlife Refuge demonstration and education project   1988-04
Tillage and crop rotation system demonstration for energy and environmental efficiency   1988-10

Return to list of topics