Root plant to fuel the process. In return, the plant takes nitrogen compounds produced from ammonia by the bacteria. The term root crops refers to any edible underground plant structure, but many root crops are actually stems, such as potato tubers. Edible roots include cassava, sweet potato, beet, carrot, rutabaga, turnip, parsnip, radish, yam and horseradish. Spices obtained from roots include sassafras, angelica, sarsaparilla and licorice. Sugar beet is an important source of sugar. Yam roots are a source of estrogen compounds used in birth control pills. The fish poison and insecticide rotenone is obtained from roots of "Lonchocarpus" spp. Important
Tasting room distribution arrangements. By avoiding a middleman and selling high-priced bottles, tasting rooms achieve much greater profits per bottle than in their wholesale operations. According to one industry survey 59 percent of American wineries charged a tasting fee in their tasting rooms for sampling wine (although many applied the fee toward a wine purchase, if any). Tasting rooms accounted for 43% of all winery sales in California, Washington, and Oregon, and 68% in other states. Straußwirtschaft is the tasting room and more for German wineries. These are owned and operated by smaller wineries. Often referred to as Strausse. Tasting room A