Abstract: Huanghuazhan is a main cultivated rice variety breed by Guangdong Academy of Agricultural Sciences and planted in South-China in large quantities,which is accepted by lots of farmers because of its good characteristics and industrialization easily. It is also a representative variety of South-China on the optimization and adjustment of industrial structure. The optimum sowing time of Huanghuazhan is from June 10th to June 15th in Hubei. The key factors of simplified and high-density direct seeding cultivation techniques include soil leveling,weeding and chemical regulation technology.

Key words: rice（Oryza sativa L.）, Huanghuazhan, simplified, high-density direct seeding, cultivation techniques, Hubei province