关键词: 茶树, 茶树, 铁观音, 福鼎大白茶, 水分胁迫, 渗透调节物质

Abstract: To improve the cultivation benefit of sorghum in temperature and light conditions which were more for growing one season of crop and less for two seasons,‘Lu Nuo 12’was used as the material, the highyielding and high-efficiency cultivation technology of“Sorghum Ratoon Sorghum”was studied by optimizing the sowing time and fertilizing for bud development, and then compared with the traditional technology. The results showed that the key points of“Sorghum Ratoon Sorghum”were that, the sowing time was between the end of February and March 5th, the planting density was 101055 plants/hm2, 150 kg/hm2 nitrogen fertilizer was applied in time about 10 days before the first season sorghum harvested, the cutting height was controlled within the first internode near the ground and 2-3 regeneration plants per hole were retained. Compared with the traditional planting technology, the yield and benefit of sorghum with“Sorghum Ratoon Sorghum”highyielding and high-efficiency cultivation technology were improved by 120.3% and 84.3% respectively, the high- yielding and high- efficiency effects were very significant. So“Sorghum Ratoon Sorghum” highyielding and high-efficiency cultivation technology was worth spreading to more areas.