Cover Crop Research - Organic Production

• Cover Crops for Soil Health and Fertility
• Cover Crops in Reduced Tillage Systems
• Cover Crops for Weed Management

Cover Crops for Soil Health and Fertility

• NEW!! Alternative Strategies for Transitioning to Organic Production in Direct-Seeded Grain Systems in Eastern Washington II: Nitrogen Fertility
• NEW!! Nitrogen dynamics in stockless organic clover–grass and cereal rotations
• NEW!! The legacy of stockless organic conversion strategies
• Black medic (Medicago lupulina) germplasm screening for use as a self-regenerating cover crop on the Canadian Prairies
• Cover Cropping Practices to Improve Weed and Fertility Management in Organic Production Systems
• Cover crops in Black currant (Ribes nigrum)
• Cover Crops Trigger Unique Gene Expression Patterns That Promote Plant Health
• Crop yield, root growth, and nutrient dynamics in a conventional and three organic cropping systems with different levels of external inputs and N re-cycling through fertility building crops
• The effect of nitrogen catch crops species on the nitrogen nutrition of succeeding crops
• Effects of mulching and cover cropping on soil microbial parameters in the organic growing of black currant 

• Evaluation of cover crop mixtures for high and low rainfall areas in Alberta (PDF, 1.35 MB)
• The Feasibility of Organic Nutrient Management in Large-scale Sweet Corn Production for Processing
• Forage radish and cereal rye cover crop effects on mycorrhizal fungus colonization of maize roots
• Grass–Legume Mixtures and Soil Fertility Affect Cover Crop Performance and Weed Seed Production
• Improving crop yield and soil quality with mulches and cover crops
• Improving green manure quality with phosphate rocks in Ontario Canada
• The influence of a long-term black medic cover crop on arbuscular mycorrhizal fungal colonization and nutrient uptake in flax under zero-tillage management
• Legume cover crops with winter cereals in southern Manitoba: Fertilizer replacement values for oat

• Legume cover crops with winter cereals in southern Manitoba: Establishment, productivity, and microclimate effects
• Manipulation of rhizosphere bacterial communities to induce suppressive soils
• Nitrate leaching from organic arable crop rotations is mostly determined by autumn field management
• Nitrogen Contribution of Legume/Cereal Mixed Cover Crops and Organic Fertilizers to an Organic Broccoli Crop
• Pea green manure management affects organic winter wheat yield and quality in semiarid Montana
• Pesticides reduce symbiotic efficiency of nitrogen-fixing rhizobia and host plants
• Repeated use of green-manure catch crops in organic cereal production - grain yields and nitrogen supply

• Researchers show soil microbes increase in organic fields
• Residues from a buckwheat green manure crop grown with phosphate rock influence bioavailability of soil phosphorus
• Root size fractions of ryegrass and clover contribute differently to C and N inclusion in SOM
• Yield and Net Returns during the Transition to Organic Feed Grain Production

Cover Crops in Reduced Tillage Systems

• Blade Roller–Green Manure Interactions on Nitrogen Dynamics, Weeds, and Organic Wheat
• Conservation tillage for organic agriculture: Evolution toward hybrid systems in the western USA
• Conservation tillage issues: Cover crop-based organic rotational no-till grain production in the mid-Atlantic region, USA
• Effects of Seeding Rate and Poultry Litter on Weed Suppression from a Rolled Cereal Rye Cover Crop
• Evaluation of the potential of no-till seeding in organic agriculture in Quebec: Building a cover crop “crimper-roller” and farm trials(PDF, 663 kbs)
• Fixation and Release of Nitrogen from Novel Cover Crops for Use in Reduced Tillage Organic Corn Production in North Carolina (PDF, 3.4MB)
• A method for mechanically killing cover crops to optimize weed suppression
• New roller crimper concepts for mechanical termination of cover crops in conservation agriculture
• Nitrogen delivery from legume cover crops in no-till organic corn production
• Organically Managed No-Tillage Rye–Soybean Systems: Agronomic, Economic, and Environmental Assessment
• Organic no-tillage system effects on soybean, corn and irrigated tomato production and economic performance in Iowa, USA
• Organic zero-till in the northern US Great Plains Region: Opportunities and obstacles
• Rolled Rye Mulch for Weed Suppression in Organic No-Tillage Soybeans
• Progress towards no-till organic weed control in western Canada
• Use of a mechanical roller crimper as an alternative kill method for cover crop

Cover Crops for Weed Management

• Brassica cover cropping for weed management: A review
• Cover Cropping Practices to Improve Weed and Fertility Management in Organic Production Systems
• Cropping system effects on giant foxtail demography: I. Green manure and tillage timing
• Effect of cover cropping systems on invertebrate seed predation
• Effect of sweetclover cultivars and management practices on following weed infestations and wheat yield
• Evaluation of cover crop mixtures for high and low rainfall areas in Alberta (PDF, 1.35 MB)
• Evaluation of Tef as a Smother Crop during Transition to Organic Management
• Grass–Legume Mixtures and Soil Fertility Affect Cover Crop Performance and Weed Seed Production

• Mechanisms of weed suppression in cover crop–based production systems
• Reducing the germinable weed seedbank with soil disturbance and cover crops
• Review of published literature on applications of cover crops as part of integrated weed management systems in field vegetable crop production in Canada
• Seeding Rate and Planting Arrangement Effects on Growth and Weed Suppression of a Legume-Oat Cover Crop for Organic Vegetable Systems
• Using high-residue cover crop mulch for weed management in organic no-till potato production systems
• Weed Suppression in Spring-Sown Rye–Pea Cover Crop Mixes