“青四矮”是佛山地、县稻麦育种协作组中山县农科所用“窄叶青8”דIR24”选育成。经两年生产试种,肥田地区表现较好,亩产900—1100斤。如中山县郊区公社柏山大队河泊一队1977年早造栽培5.8亩,平均亩产1070斤,1978年44.2亩,平均亩产932.3斤,比“科字17”(20亩)亩产815斤每亩增产117.3斤,即增14.3％。南海县大沥公社沥 “Four green short” is Foshan, county rice and wheat breeding cooperative group Zhongshan County agricultural use “Narrow Yeqing 8” × “IR24” Breeding into. After two years of trial production, fertilizer field performance better, 900-1100 kg per mu. For example, a team of the Beishan Brigade and River Park in the suburban commune of Zhongshan County started to cultivate 5.8 mu as early as 1977, with an average yield of 1070 kg. In 1978, 44.2 mu of mu was produced, yielding 932.3 kg of mu per mu, 815 kg of mu per mu An increase of 117.3 pounds per mu, that is, by 14.3%. Dali, Nanhai County Commune Lek