Alan Sundermeier Ohio State University Extension

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Presentation transcript:

Alan Sundermeier Ohio State University Extension sundermeier.5@osu.edu Cover Crops - Overview Alan Sundermeier Ohio State University Extension sundermeier.5@osu.edu

Factors affecting species choice Add Nitrogen Scavenge Nitrogen Cycle Nutrients Suppress Weeds & Insects Control Erosion / Improve Soil Harvest as Forage Length of Growing Season

When to Plant ? Look for opportunities in crop rotations Under seedings After small grain harvest After fall harvest

Managing Growth Winterkill Grazing Mowing Roller Tillage

BEFORE YOU BEGIN USING COVER CROPS ON-FARM RESEARCH SEED SOURCE OR GROW YOUR OWN START SMALL EDUCATE YOURSELF

Cover Crop Options Legumes Hairy vetch Medium and mammoth red clover Crimson clover Austrian winter pea Cowpea Nondormant alfalfa Soybean Annual medic

Red clover

Cover Crop Options Non-legumes Small grains: oat, rye, wheat, barley, speltz Sudangrass Forage turnips Oilseed radish Annual ryegrass

Oilseed Radish

Oilseed Radish

Why consider mixtures? Complimentary growth (above and below ground) Spreads risk of winterkill Grasses hold soil well with fine root system Easier to achieve a desirable C:N ratio Broader spectrum of weed suppression ( allelopathic )

Cover Crop Resources Managing Cover Crops Profitably-SARE Agronomy Journal Extension Factsheets On-Farm Research reports SARE State Coordinator University Research Station Field days Private companies

USDA Sustainable Agriculture Research and Education Program - SARE (www.sare.org) Farmer/ Rancher Grant Program Up to $6000/individual; $18,000/group of 3 Call for proposals posted in early fall; proposals due late fall

Thank-You For Attending Please Complete Evaluation Next Organic IP Video Program Organic Weed Control March 15, 2007