张正坦是山东省淄博专区四唐村人,总共种了六亩地,今年种了一亩烟,已全部烤完,烤了488斤,晒了153斤,共计541斤(为全省要求平均产量的三倍),经与当地群众座谈及实际调查了解,总结其丰产经验如下:(一)精耕细作,合理施肥,给予了烟以良好的生长、发育环境条 Zhang Zheng Tan Zibo area in Shandong Province four Tang village, a total of six acres planted this year planted a mu of tobacco, has been roasted, baked 488 pounds, drying 153 pounds, a total of 541 pounds (for the province’s average output Three times). After discussing with local people and actual investigation and understanding, sum up their rich experience as follows: (A) intensive, reasonable fertilization, given a good growth of tobacco, the development of environmental items