徐苕1号(6706)徐苕1号,是徐州地区农科所从苏联毛叶苕子中通过系统选育而成的冬绿肥新品种。徐苕1号叶大茎粗,叶呈圆矩形。茎呈四棱形,花兰紫色。春性强。鲜草产量比当地光叶苕子增产33—66%,比当地推广的毛叶苕子增产13—55%。耐寒、抗冻性强,能在-20℃低温安全越冬。抗虫,也较抗病。种子产量较高而稳,一般亩产80—100斤,比本地光叶苕子增产1倍左右,千粒重25克左右。成熟期同普通毛叶苕子,比本地区光叶苕子晚4—6天。该品种已在徐州地区推广种植15万亩。由于生长茂盛,植株高达3米多,留种田应有支架并控制密度。一般用棉秸、小麦或油菜作支架,每亩4,000—8,000 Xuyi No. 1 (6706) Xuyi No. 1 is a new variety of winter-green manure which was systematically selected and bred by the Agricultural Science Institute of Xuzhou Prefecture from the Soviet Union Curcuma longissima. Xu 苕 No. 1 leaves large stem thick, round leaves rectangular. Stems are four prism, flower orchid purple. Strong spring. The yield of fresh grass is 33-66% higher than that of the local leaves and increased by 13-55% over that of the locally-exported leaves. Cold-resistant, frost-resistant and strong, at -20 ℃ low temperature safe and wintering. Insect resistance, but also disease-resistant. Seed yield higher and stable, the general mu produce 80-100 kg, than the local light leaf prickly heat yield about 1 times, 1000 grain weight 25 grams. Maturity with the common hairy prickly heat, than the area of ​​light leaf prickly heat 4-6 days. The varieties have been planted in Xuzhou to plant 15 million mu. Due to the flourishing growth of plants up to 3 meters, stay farming should be scaffold and control the density. Generally cotton straw, wheat or rape as a stent, 4,000-8,000 acres