美国籽粒苋属苋科苋属 ,一年生草本植物 ,原产美国 ,最近引入我国种植 ,表现出适应性广、营养丰富、产量高、适口性好、耐寒、耐旱、耐盐碱等优良特性 ,为粮、菜、草、饲兼用的一种高效经济作物 ,亟待我区开发。1　特征特性该草为直根系 ,根深可达 1 m以上 ;植株高大 ,平均株高 Amaranthus amaranthaceae is an American annual Amaranthaceae, native to the United States. Originally introduced into the United States, the Amaranthaceae amaranth has been widely applied in China. It shows good characteristics such as broad adaptability, rich nutrition, high yield, good palatability, cold resistance, drought tolerance and salt tolerance. For food, vegetables, grass, feeding and efficient use of a cash crop, urgent development of our region. 1 Characteristics of the grass for the straight roots, deep roots up to 1 m above; tall plants, the average plant height