Methods and apparatus for delivering time-release fertilizer

摘要

A fertilizer spike, in an exemplary embodiment, includes particulate fertilizer source material compacted together under pressure in a die to form a substantially wedged shaped spike body. The spike is configured to be hammered into a terrain such that the spike remains substantially intact. At least a portion of the fertilizer source materials are releasable into the terrain through microbial action. The fertilizer spike is substantially free of a thermoset binder material.