Winter Cover Cropping in High Tunnels
Lori Koenick, Extension Support Specialist
Cornell Vegetable Program

Cornell Cooperative Extension is researching cover crops for high tunnel growers to better manage fertility and improve soil health. Our work has shown that winter cover cropping in high tunnels has the potential to add organic matter, improve soil structure, support microbial activity, and help with nutrient management by scavenging leftover nitrogen and/or fixing nitrogen. This publication shares best practices for winter cover cropping in high tunnels including species selection, planting rates and dates, termination, and cultural management considerations.
Interested in learning more?
Contact project team members Judson Reid or Lori Koenick of the CCE Cornell Vegetable Program.
This work is funded by a USDA NRCS Conservation Innovation Grant "Best Management Strategies for High Organic Soils in Urban and Rural Vegetable Production."
Management Practices for High Organic Matter Soils: Winter Cover Cropping in High Tunnels (pdf; 687KB)

Upcoming Events
Vegetable Pest and Cultural Management Field Meeting for Auction Growers -- Chautauqua
July 14, 2026
Panama, NY
A field walk will demonstrate pest management in fresh market vegetables in both field and greenhouse (high tunnel) vegetables, primarily for those growing for wholesale auction. CCE Cornell Vegetable Program Specialist Judson Reid will identify weeds, insects and diseases in vegetables and will go over management options such as inter-row cover crops, grafting, and where appropriate, spray options.
DEC recertification credits will be offered.
Vegetable Pest and Cultural Management Field Meeting for Auction Growers -- Allegany
July 15, 2026
Fillmore, NY
A field walk will demonstrate pest management in fresh market vegetables in both field and greenhouse (high tunnel) vegetables, primarily for those growing for wholesale auction. CCE Cornell Vegetable Program Specialist Judson Reid will identify weeds, insects and diseases in vegetables and will go over management options such as inter-row cover crops, grafting, and where appropriate, spray options.
DEC recertification credits will be offered.
Pest Management for Small-Scale Growers
July 23, 2026
Rochester, NY
Join us for a hands-on field day exploring integrated pest management tools for small-scale growing spaces and the opportunity to build community with local growers! Learn the best practices for using row covers, biocontrols, trapping, and more.