Buddhas Tree PK 9-18 The first true PK 9-18 hydroponic soluble solution. Buddhas Tree PK 9-18 increases plant uptake of nutrient and the plants natural oils and sugars thus making heavier yields and more potent crops. It achieves this by breaking down enzymes in the roots of the plant which creates healthier roots, encourages more uptake of phosphorous and potassium.. This is to bring the best and safest product possible to the growers and do not intend to produce any other nutrients, The market already has great nutrients available through Dutchpro, House & Graden, and Canna just to mention a few. Buddhas Tree 9-18 is to compliment these great nutrients as it is used along side them and not to replace them. This booster degrades faster in soil as it is a hydroponic soluble solution, thus using double the strength. Directions for uUse: hydroponic, 0.25ml – 0.5ml per litre, soil: 0.3ml – 0.6ML per litre.