我县从1986年到1990年,每年杂交玉米制种面积在2000亩左右,全在小麦地预留行内套种,平均亩产265.4公斤,比小麦收获后再播杂交玉米制种亩产105.2公斤增产160.2公斤,增产152.3%,是一项增产又增收的改制措施,深受制种户的欢迎。根据几年来的实践,为了使在小麦地预留行内播杂交玉米制种后一次出全苗,达到苗齐、苗壮,抓了以下一些措施。 1.套作厢宽要合理。选春性小麦于头年11月 My county from 1986 to 1990, the annual hybrid corn seedling area of ​​about 2000 acres, all reserved for interplanting lines in wheat, the average per mu yield of 265.4 kilograms, more than after harvest wheat hybrid corn seed yield of 105.2 kg per mu increase 160.2 kg, an increase of 152.3%, is an increase and increase income restructuring measures, by the system seed households welcome. According to the practice over the past few years, in order to make the wheat in the line of inbreeding corn hybrid seedlings after a full seedlings, seedlings, catch the following measures. 1 sets of width to be reasonable. Spring wheat election in the first year in November