美国籽粒苋是苋科苋属一年生植物,育成于美国,现分布于世界各地。我国1982年由美国宾夕法尼亚州R0dl中心引入,1985年引进陕西省,1987年引种到千阳县草业试验点。作为小麦连作体系中“闲季”的填闲作物,并推广到广东、广西、甘肃、新疆、陕西30多个县,总面积约1.5万亩。 American amaranth is an annual plant of the genus Amaranthus, bred in the United States, is now distributed all over the world. China 1982 introduced by the Pennsylvania R0dl Center in 1985, introduced to Shaanxi Province, introduced in 1987 to Qianyang County Piedmont pilot. As a “leisure season” paddy crop with continuous cropping system in wheat, it was extended to more than 30 counties in Guangdong, Guangxi, Gansu, Xinjiang and Shaanxi with a total area of ​​about 15,000 mu.