Ключевые слова: agriculture, biennial, botany, brassica, cabbage, crop, cultivate, farm, farmland, field, flora, food, fresh, green, growing, harvest, hill, horticulture, natural, nature, oleracea, outdoors, phetchabun, phu, phutubberk, plant, plantation, slope, thailand, trees, tubberg, tubberk, vegetable,