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CDFA Inspection Services Division

Strawberry Nitrogen Uptake and Partitioning

Crops:

Almonds

Barley

Broccoli

Cauliflower

Citrus

Corn for Grain

Corn for Silage

Cotton

Grapevines

Lettuce

Pistachio

Rice

Strawberry

Tomatoes

Walnut

Wheat

Seasonal N Uptake



In commercial fields in the Salinas and Pajaro Valleys, aboveground biomass N accumulation averaged approximately 20 lbs/acre through March. From April through mid-September, aboveground biomass N increased linearly, reaching on average 190 lbs/acre (Bottoms et al., 2013).

Nitrogen Partitioning



Approximately half of the aboveground N was in strawberries, while the other half was in leaves and the crown (Bottoms et al., 2013).

Nitrogen Removed at Harvest

Strawberry yield and N removed at harvest.



Links

Strawberry Fertilization Guidelines

References

Bottoms, T.G., Hartz, T.K., Cahn, M.D., Farrara, B.F., 2013. Crop and soil nitrogen dynamics in annual strawberry production in California. HortScience 48, 1034–1039.