加拿大321蚕豆是张掖农校于1984年从青海省农科院品资所引进的。1989年由张掖农校引入我县试验示范。该品种幼苗直立,叶色淡绿,株高适中(川水地区90—120厘米,干旱地区70—90厘米),结荚部位距地面高20—30厘米,平均单株分枝1.8—2.2个;茎粗、抗倒,花白色,籽粒淡灰色、宽而扁平,百粒重120—140克;单株 321 Canada beans is Zhangye Agricultural School in 1984 from the Qinghai Provincial Academy of Agricultural Materials introduced. In 1989 by Zhangye Agricultural School introduced my county pilot demonstration. The varieties of seedlings erect, leaf color light green, moderate plant height (Chuanshui 90-120 cm, 70-90 cm in arid regions), the pod site 20-30 cm above the ground, the average single branch 1.8-2.2 ; Stems rough, anti-down, white flowers, light gray grain, wide and flat, one hundred weight 120-140 grams; single