大葱生产用种量试验研究

Research on The Quantity of Seed in Big Spring Onion Production

经过2000-2001年两年试验，育苗面积66．7m^2，每定植667m^2大葱生产田，用种100g育出的葱苗数量少，满足不了定植需求；用种150-250g育出的葱苗质量高,数量充足，生产出的鲜葱质量和产量较高，是适宜用种量范围；用种300-450g育出的葱苗质量不高,达到壮苗标准的葱苗较少，种子浪费较多,生产出的鲜葱质量和产量较低。不宜提倡。

Teach the seedling area 667m^2 and than transplant the spring onion seedling to the farmland of 667m^2 in the two years trial （2001-2002） ,the spring onion seedling that taught with 100 grams of seed was scarce and could not satisfy to plant; the spring onion seedling that ＂taught with 150 grams of seed was ample, the spring onions seedling quality standards and yields is higher, so it is a well scope for seed quantity; the quality of the spring onions seedling that taught with 300-450 grams of seed was low-grade, the seed waste more, the fresh spring onion quantities and yields is lower, should not promote.