聚合草是一种优质高产人工栽培牧草，除极为寒冷地区外，全国绝大部分地区均可栽培。１９６２年首次从日本及澳大利亚引入我国，１９７２年朝鲜民主主义人民共和国作为珍贵礼品赠送给吉林省，以纪念朝中友谊，因此，聚合草曾称为“友谊草”。为了推广聚合草，当时的农林部成立 Aggregated grass is a high-quality and high-yield artificial pasture, except for extremely cold areas, most parts of the country can be cultivated. It was first introduced to Japan from Japan and Australia in 1962. In 1972, the Democratic People’s Republic of Korea was presented as a precious gift to Jilin Province to commemorate the DPRK-China friendship. Therefore, it has been called “friendship grass.” In order to promote polymerization grass, the Ministry of Agriculture was established