by some really awesome bitch June 11, 2018
by blackhawk881950 April 27, 2014
N-P-K refers to the ratio of important elements in a fertilizer or soil amendment. N stands for nitrogen, which is responsible for strong stem and foliage growth. P is for phosphorus, which aids in healthy root growth and flower and seed production. K stands for potassium, which is responsible for improving overall health and disease resistance.
by Pseudononymousness January 13, 2009