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一九七二年广东省农林技术会议指出:遵照“以粮为纲,全面发展”的农业生产方针,今后几年,农业科学研究工作的,重点是提高粮食产量,要集中力量研究解决实现粮食千斤省的关键技术问题,要在选育推广“科字六号”(以下简称“科六”)等水稻良种,实行一年三熟耕作制,扩大冬种作物方面来一个较大的突破。“科六”(原名IR—8)于1967年自菲律宾引进我省,次年试种,1971年在全省
In 1972, the Guangdong Provincial Agroforestry and Technology Conference pointed out: In line with the principle of “taking grain as the key link and developing in an all-round way”, in the next few years, the focus of agricultural scientific research will be to increase grain output and concentrate on studying and resolving the problems of food The key technical problems in pushing forward the province’s development are to launch a major breakthrough in selecting and popularizing rice varieties such as “Kezi No. 6” (hereinafter referred to as “Ke Liu”), implementing the three-cropping system for one year and expanding winter crops. “Section VI” (formerly IR-8) was introduced into the province from the Philippines in 1967, the second year of trial cultivation, in 1971 in the province