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紫云英北移陕西关中,从9月5日到10月25日每隔10天播种一期,共6个播期试验.结果表明,在接种根瘤菌的基础上,9月各旬平均气温20℃左右或20℃以上,播后4-5天出苗,第一、二期播种的,播后15天长出2片真叶,4个根瘤,入冬初期,苗龄50-60天,由于建立共生关系,根瘤固氮,形成8-10片真叶和20个以上根瘤的越冬壮苗.在温度低,晚播时,出苗慢,根榴形成和真叶
Aster were moved north of Shaanxi Guanzhong from September 5 to October 25 every 10 days planting a total of 6 sowing date test results showed that inoculation rhizobia on the basis of the average temperature in September ten 20 ℃ or above 20 ℃, 4-5 days after sowing seedlings, the first and second seeding, sowing 15 days after sowing two true leaves, four nodules, early winter, seedling age 50-60 days, due to The establishment of symbiotic relationship, nodulation and nitrogen fixation, the formation of 8-10 true leaves and more than 20 nodules wintering seedlings in low temperature, late sowing, emergence is slow, the formation of pomegranates and true leaves