Ключевые слова: agricultural, agriculture, agronomy, california, chemical, countryside, crop, cultivate, cultivated, dusk, ecology, environment, equipment, farm, farmer, farming, farmland, fertilizer, filed, grapes, green, ground, harvest, herbicide, industry, insecticides, landscape, machine, machinery, napa, natural, nature, pesticides, plant, plantation, pollutant, pollution, protection, rural, season, soil, sowing, sprayer, spring, toxic, tractor, valley, vine, vineyard, wine,