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CDFA Inspection Services Division

Almond Nitrogen Uptake and Partitioning

Crops:

Almonds

Barley

Broccoli

Cauliflower

Citrus

Corn for Grain

Corn for Silage

Cotton

Grapevines

Lettuce

Pistachio

Rice

Strawberries

Tomatoes

Walnut

Wheat

Seasonal N Uptake



Changes in almond orchard N balance in annual and perennial organs as determined by sequential tree excavation and serial sampling of all organs scaled to a whole-orchard basis. Samples were taken in an orchard with 13-year-old Nonpareil-Monterey trees (50:50 mix). The kernel yield was 4,800 lbs (Saa Silva et al., 2012).

Nitrogen Partitioning



Nitrogen distribution in 13-year old almond trees with a kernel yield of 4,800 lbs (Saa Silva et al., 2012).

Nitrogen Removed at Harvest

Nitrogen removed with harvested almonds expressed in pounds of N per 1000 pounds of marketable kernels. The value includes all N removed in hulls, shells and kernels (Saa Silva et al., 2012).

Links

Almond Fertilization Guidelines



References

Saa Silva, S., Muhammad, S., Sanden, B., Laca, E., Brown, P., 2012. Almond early-season sampling and in-season nitrogen maximizes productivity, minimizes loss.