you got two of the commonly used ones nothing I know is higher that bone meal -fish bone meal, fish meal, shrimp meal, and Sea bird guano on the higher side and crab meal, bat guano, cotton seed meal, insect leavings, neem seed meal are all on the lo side but I'm a firm believer in small (trace amounts) of bone meal and kelp meal because its a delayed release like the bone meal Kelp meal with really low N,P,K 1,0.1,2. Almost forgot oyster shells but given how long they take to break down the phosphorus released is negligible at best. I hope this helps
You are viewing a single comment's thread from: