Hello, I am interested to know if anybody (by any incredible chance) has any information regarding nutrient requirements for green roofs and urban gardens (more interested in the roofs though!). I am interested in this because I do not know the type of growing mediums used for rooftop agriculture and I do not know how much poultry manure (composted I think) I am able to put into the medium, if any. Also, I am interested in crop plants with high uptake rates of N and P for the Lower Mainland. Can someone direct me on where I could find more information on this? Good insightful input would be greatly appreciated (Moral support as well). Thankyou Camilo
http://www.streamorganics.com/specialty.html local supplier of custom soils, they may have some further info available.
