今年我采用玉米新法制种获得成功,亩产陕单9号种子240.5kg,较长规方法增产一倍,具体作法是:1.宽窄行播种,宽行中间点父本。宽行75cm,窄行40cm,株距18—21cm,每亩留苗5100株。在宽行中间每隔1m 点播1窝父本,每窝留2—3株;只在靠地边种了一行父本。从而解决了制种父母本争地的 This year, I succeeded in using the new law of maize and succeeded in producing 240.5 kg of Shandan No. 9 seed per mu, doubling the production by the long-term method. The specific measures are as follows: 1. Wide line 75cm, narrow line 40cm, spacing 18-21cm, 5100 per acre Miao Miao. In the middle of the wide-line broadcast every 1m point a nest of male parent, leaving 2-3 per litter; only by the ground planted his father. In order to solve the seed production of this controversial