Friday, October 16, 2009


on october 8th i brought home a ziplock bag of bright blue, powdered (15,15,18)* fertilizer. it was given to me by my horticulture prof for a take home growing experiment. i decided to share it with the avocado and gave it a light sprinkling of the solution.

the avocado continued to grow vertically and the number of axillary buds increased, but they remained very small and undeveloped. the apical dome and leaf primordia remained hidden under unopened developing leaves at the top of the shoot.

avocado leaflets, october 13th, 5 days after receiving fertilizer

*these numbers represent the percentage of macromolecules nitrogen, phosphorous and potassium, respectively, present in the fertilizer. different plant species have different fertilizer preferences.

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