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Citrus General Discussion / Re: Citrus: nutrient schedule?
« on: April 22, 2014, 09:20:46 PM »
A great many commercial citrus growers use 6-6-6, 8-8-8 or 10-10-10 because they are readily available, cheap, and can be purchased in bulk. Citrus trees absorb nutrients from the soil in the ratio of 5-1-3. In other words for every 5 parts nitrogen, the tree's root system will absorb 1 part phosphorous and 3 parts potassium. Obviously, in cases of over dosage or deficiency of one or more elements this ratio must be changed to a more appropriate one. Using a fertilizer with a 5-1-3 ratio such as peters 25-5-15 with minors, is especially good for trees growing in containers. I use this ration on both my container and in ground trees - Millet