关键词: 职称, 职称, 职称评审, 职称制度

Abstract: The objective was to screen for suitable varieties of ratoon rice and studied the high yield cultivation techniques in Hunan. The sowing time, harvest time, growth period and the tiller number per,the average number of each clump of the ratoon rice were recorded and calculated , the growth period, ratooning ability, yield and quality of 7 different rice variety were compared to select the suitable varieties as ratoon rice .Then taking the best one as the study material , the influence were studied of the fertilizing time, the way of harvest and stubble height on the tillering, height and the production of ratoon rice. To explored the control plans of plant disease and insect pest, and make demonstration experiment on Hunan. The results showed that, as a ratoon rice, ‘Y Liangyou 9918’ had the advantages of short growth period, strong regeneration ability, high yield, good quality and taste, which the best fertilizer application time was about 7 days before harvest of the first-season rice ; it was better to keep the stubble height between 25cm to 27cm by mechanics-harvesting; when the control of the plant disease and the insect pest, it should adopt to the “a mix of three spray” method, so the production of ratoon rice could be 3000-4500 kg/hm2. The high yield cultivation techniques of ratoon rice was constructed in Hunan, it could decrease the cost of production, and further improve the yield of the ratoon rice. So it had practical significance of popularization and application.