中山县古镇公社广大贫下中农和干部为了加快蚕桑生产步伐,改变过去全年桑叶产量两头低中间高的“山”字形和养蚕蚕造收成两头高中间低的“马鞍形”的规律,延长养蚕期,增加总产茧量。近年来,通过大搞群众性科学实验活动,吸取省内外的先进经 In order to speed up the pace of sericulture production, the vast majority of poor peasants and middle peasants and cadres in Zhongshan Guzhen commune, in order to speed up the pace of silkworm mulberry production, change the pattern of “saddle-shaped” with two middle and low middle highs Sericulture period, increase the total amount of cocoon production. In recent years, by vigorously conducting mass scientific experiments and drawing lessons from the advanced departments both inside and outside the province