TOP CROP - ROOTS - 5LTop Roots from Top Crop is a concentrated rooting supplement effectively developed to ensure optimal root production. Suitable for the preparation of nutritive solutions for its application in the soil. HOW TO USE TOP ROOTS FROM TOP CROP Dilution rate 0. 5 1 ml 1L of tap water during the rooting phase. It can be mixed with top SOIL A + B in the growth stage of the crop, at the beginning of the flowering stage and when doing a transplant. If necessary,