Skip to main content
ARS Home » Midwest Area » Madison, Wisconsin » U.S. Dairy Forage Research Center » Dairy Forage Research » Research » Research Project #444799

Research Project: Machinery Traffic Impacts on the Alfalfa-Corn Intercropping System

Location: Dairy Forage Research

Project Number: 5090-21500-002-039-S
Project Type: Non-Assistance Cooperative Agreement

Start Date: Sep 22, 2023
End Date: Sep 21, 2025

Determine how ground pressure from various tire and vehicle configurations during harvest impacts soil characteristics and crop yields of alfalfa intercropped with corn.

Small plot studies indicate alfalfa-corn intercropping can enhance soil and nutrient conservation and improve forage production but the impact of full-sized harvest equipment on this production system is not known. A replicated field experiment will be initiated in May 2024 at the Cooperator's farm to examine five levels of wheel traffic intensity imposed on the intercropping system. The study will include a conventionally established and harvested stand of spring solo-seeded alfalfa as a control treatment. Measurements will include corn silage yield and post-harvest assessments of soil compaction and alfalfa stand density, health, and forage yield.