地处粤北壮族人民聚居的连山县小三江公社,原来是采用单季与双季稻混栽的耕作制度。1976年试种三季连作稻20多亩,在严重“倒春寒”的天气影响下,仍获得较好收成。雷冲生产队种植三季稻11.6亩,年亩产1407.2斤,比同等条件的双季稻年亩产904.6斤亩增502.6斤。其中2.89亩,年亩产1634.9斤,跨过了“双纲”。粤北山区历来秋寒早,春暖迟,季节很紧,改革耕作制度多是搞单造改双造、稻稻麦、稻稻油等,但试种三季连作稻初获成功后,为今后改制展示了新的前景。并证明粤北 The small Sanjiang commune in Lianshan County, which is home to the people of northern Zhuang in Guangdong, turned out to be a tillage system that uses single-season and double-cropping rice. In 1976, the trial of planting 20 mu of rice in three seasons for continuous cropping rice continued to achieve better results under the severe weather of “late spring cold”. Lei Chong production team planted 11.6 acres of three-season rice, annual output of 1407.2 kg, double-crop rice than the same conditions of mu produce 904.6 kg mu 502.6 kg. Of which 2.89 mu, the annual yield of 1634.9 kg, crossed the “two-class.” The mountainous areas in northern Guangdong have always had early autumn, early spring and late spring with tight seasons. Most of the reforming farming systems are engaged in single-cropping and double-cropping, rice paddy and paddy rice oil. However, Showing a new prospect. And prove that northern Guangdong