BIOTABS - PK BOOSTER COMPOST TEA - 8 KGPK Booster Compost Tea A mixture of extremely concentrated organic compost ? Bat Guano ? Kelp ? P releasing bacteria ? K mobilising bacteria ? Selected special ingredients PK COMPOST TEA features a rich and potent compost, with a healthy blend of active microorganisms (predominantly bacteria), bat guano, varech and a number of other specifically selected ingredients. Also in the package is a unique blend of bacteria that release phosphorus (P) and