Where can I find fertilizer recommendations for grapefruit trees?
Where can I find fertilizer recommendations for a soil tests? I am specifically looking for a grapefruit tree soil analysis. Also, do you have any phosphorus-response research on citrus (esp. grapefruit)?
We do have some fertilizer recommendations and they vary depending on if you are a homeowner or a grower. In the case of the homeowner, the recommendations are based on many years of experience, rather than on soil tests, since most homeowners do not have their soil tested. Most growers base their fertilizer applications on leaf tests, rather than soil tests, since the soil in the citrus growing area is sandy and any fertilizer applied will quickly be carried below the root zone by the flood irrigation water.