早籼香两优６８和晚籼培两优２８８是国家杂交水稻工程技术中心育成的两系杂优新组合。从１９９６～１９９８年连续３年在我市四县一郊１１个示范点，双季种植面积各６００亩。早稻平均亩产５３０千克，连作晚稻平均亩产５２７千克，双季亩产超吨粮（１０５８千克）。现将... Early indica Xiangliangyou 68 and late indica Peiliangyou 288 is a new hybrid combination of two lines developed by National Hybrid Rice Engineering and Technology Center. From 1996 to 1998 for three consecutive years in four counties in the suburbs of 11 demonstration sites, double cropping area of ​​600 acres each. The average yield of early rice is 530 kg, the average continuous production of late rice is 527 kg, and that of double-season mu produce is 1058 kg. Now ...