合浦县大面积推广七青占七青占是广东省遂溪县良种场用具有金围矮和窄叶青等血缘的中间材料与七桂早杂交选育而成的水稻新品种。合浦县于１９９１年早造引进试种，１９９２年早造在１８个村公所进行集中连片示范１５００亩，晚造全县推广４．６万亩。１９９３年全年种植２... Hepu County, a large area to promote the promotion of seven green accounted for the Suixi County, Guangdong Province with a variety of seedlings with Jinwei dwarf and narrow leaf green and other blood of intermediate materials and Qi Guizao early hybrid breeding of new rice varieties. Hepu County in 1991 as early as the introduction of trial planting, as early as 1992 made in 18 villages and public offices to conduct a contiguous demonstration of 1,500 acres, late to promote the county’s 46,000 acres. 1993 year planted 2 ...