壮苗在提高作物生产方面具有很大潜力。对一般作物来说,选用粒大而饱满的籽实作为种子,能长出茁壮幼苗,可获得较高的经济产量。在北方甜菜产区均春育母根,采种田种株营养面积多为70×50cm。在此营养面积内其母根重量与种子产量的关系,以及生产多大母根为宜,对此,我们进行了试验,结果如下。 Strong seedlings have great potential for improving crop production. For the average crop, the use of large and plump seeds as seeds, can grow robust seedlings, access to higher economic output. In the northern beet producing areas are spring-growing mother roots, mining farming seedlings more than 70 × 50cm. In this area of ​​nutrition, the relationship between its parent weight and seed yield, as well as the production of more parent is appropriate, for which we conducted the test, the results are as follows.