Maximum Yield USA 2012 July | Page 34

MAX FaCTS HyDROPONIC NEWS, TIPS aND TRIvIa pacKinG MushrooMs Mushrooms are a key ingredient in a new brand of packing blocks used to cushion products. More precisely, the blocks are made with mycelium—the hidden “roots” of mushrooms that are usually found beneath dirt or wood. Workers inoculate mycelium into pasteurized bits of seed husks or plant stalks, then place the mix into clear plastic molds shaped like the desired packaging pieces. The mix is covered for about five days as millions of mycelium strands grow around and through the feedstock, acting as a kind of glue. The hardness and other qualities of the molded pieces can be manipulated by altering the type of feedstock or mycelium used. Once the piece is grown, it is then heat dried to kill the fungus, insuring that mushrooms can’t sprout from it. Since the mycelium is cloned, the product does not include spores, which can trigger allergies. The product breaks down in six to nine months and can be thrown on a compost pile. It’s also technically edible, though is not recommended as a snack. (Source: huffingtonpost.com) rooftop fish farMs The prototype Globe/Hedron is a bamboo greenhouse designed to utilize aquaponic farming techniques. Optimized to feed four families of four all year round, the unit could annually produce 220 lb. of fish and 880 lb. of vegetables. The geodesic-dome design allows the fish tank’s weight to be redistributed to a larger surface, so the unit can be placed on more roofs without any structural building adaptation. The dome can also be equipped with PV panels and cooling turbines to generate energy, and the basic structure can be adapted with greenhouse panels or insulating panels to suit different environments and weather conditions. Once on the market, the unit could sell for about the price of a small car. (Source: treehugger.com) underwater carBon storaGe Seagrasses are recognized for their many ecosystem benefits, such as filtering sediment, serving as habitats for marine life and protecting coastlines against floods and storms. Now researchers have found that seagrass meadows might also reduce greenhouse gas emissions and increase carbon stores. Studies show that coastal seagrass beds can store up to 83,000 metric tons of carbon per 1.54 sq. mi. (mostly in the soils beneath them) and that the global carbon pool in seagrass beds is as much as 19.9 billion metric tons. Seagrass meadows can store up to twice as much carbon as the world’s temperate and tropical forests. (Source: nsf.gov) 32 Maximum Yield USA | July 2012