Ключевые слова: agriculture, background, biology, butterhead, cultivate, diet, dirt, environment, farm, farmer, fiber, field, food, fresh, gardening, green, ground, growth, harvest, health, healthy, herb, ingredient, leaf, lettuce, light, natural, nature, nursery, nutrition, organic, outdoor, plant, produce, raw, rural, salad, soil, spring, summer, sunny, technology, topview, vegetable, vegetarian, vitamin, water, young,