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随着科学种田群众运动的发展,改一年一熟为麦、谷两熟,“双细粮双高产”,正在子长县川道地区普遍推行。1974年冯家屯大队100亩川地小麦平均亩产500多斤,其中50亩麦茬复种谷亩产达到500斤,两料总产过了千斤。这个大队麦茬复种谷高产的技术措施是:①选用良种。当地从小麦收获到早霜仅85～90天。因此,首要条件是选生育期短,赶早霜来临前能充分成熟的良种。几年来,通过引种试验,竹叶青、伏谷、代二等品种比较适宜。6月25日～7月5日播种,9月底以前即能成熟,亩产可达500～600斤。②抢时早播。“夏争垧,秋争时”。复种谷早播是增产的关键。1972年试验,6月15日播种的竹叶青谷子亩产560斤,7月1日播种的亩产435斤,晚播15天,减产28％;1974年6月25前后播种的谷子亩产500斤,而7月7
With the development of the science-based mass movement, it is common practice to change one ripening year into wheat and two crops and double-yielding and double-yielding crops in the Chuan Road area of Zichang County. In 1974 Fengjiatun brigade 100 mu of Sichuan average yield per mu 500 kilos, of which 50 acres of stubble acres of wheat stubble reached 500 pounds, two total production over a thousand pounds. The brigade wheat stubble crop high yield technical measures are: ① selection of elite. Local harvest from wheat to early frost only 85 to 90 days. Therefore, the first condition is to choose a short fertility period, catch up before the frost comes full maturity of the elite. In recent years, through the introduction of tests, bamboo leaf green, volta, on behalf of the second-class varieties more appropriate. June 25 ~ July 5 sowing, before the end of September that is able to mature, up to 500 ~ 600 kg per mu. ② pre-broadcast when seized. “Summer battle 垧, fall competition.” Early sowing multiple cropping is the key to yield. Test in 1972, June 15 sowing green leafy mu yield of 560 pounds, July 1 sowing 435 pounds per mu, late sowing 15 days, cut 28%; June 25, 1974 before and after the sowing millet mu 500 kg , While July 7