Monitoring Soil Nitrate to Estimate Cover Crop Nitrogen Contribution in Organic Vegetable Production Fields

Authors: Nick Andrews, Dan M. Sullivan, and Kristin Pool, Oregon State University

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Organic vegetable growers rely on legume cover crops as an economical source of plant-available¬† N. This research evaluated N contributions to summer vegetable crops by cover crops (CC)¬† residues by monitoring soil nitrate (NO3-N) concentrations during the summer crop growing season. Replicated field plots were established with three CC mixes: solo common vetch (V),¬† phacelia + V (PV), and cereal rye + V (RV), plus a winter fallow (F) control in grower fields in the north Willamette Valley OR. Soil textures were … Read the rest

Reduced Tillage in Organic Vegetable Systems

This video is intended for organic vegetable producers and agricultural professionals, especially in the maritime northwest. Techniques and findings from recent research are shared to assist producers in trialing reduced tillage systems. The video covers the concept of reduced tillage organic agriculture, cover crop and weed management, and specialized equipment.

Link: https://youtu.be/F6AL3xtwoggRead the rest