How do I match tomato nutrient demand and nitrogen release from organic amendments?
Nitrogen dynamics in field-grown organic heirloom tomatoes Learn about tomato demand and nitrogen release rates from organic amendments to improve your crop productivity and nitrogen reporting
How can I estimate nitrogen availability in my organic production?
Estimating Nitrogen Availability in Organic Crop Production: For N budgeting and other purposes (PDF) - This worksheet intends to serve as a guide to improve prediction and synchronization of plant available N on organic farms.
How do I interpret fertilizer recommendations and calculate how much fertilizer to apply to raised beds, mulched systems?
|Calculating fertilizer rates for vegetables grown in raised-bed, mulched, cultural systems (PDF) - Document explaining how to interpret fertilizer recommendations and calculate the amount of fertilizer you should apply to your raised beds.|
How can soil carbon and microbial biomass improve plant-soil-nitrogen cycling and plant nutrition?
|Soil Biology and Nutrient Cycling on Yolo County Organic Farms (PDF)- Presentation by Louise Jackson about soil biology and nutrient cycling as well as the role of mycorrhizal fungi and microbial biomass in nutrient cycling|
Where can I send plant tissue samples for nutrient analysis?
Laboratories Providing Plant Tissue Testing (PDF) - A list of labs in South-Central, North-Central, and Northern California that do plant tissue sample analysis.