High-yielding cultivation techniques of Japonica Hybrid Rice Liuyou 1

Based on the analysis of the growth situation and yield structure of Liuyou 1 Honda, it is considered that the main technical measures are as follows: (1) using dry water to send two stages of seedlings. Scientific use of fertilizer, strict water slurry management, regular irrigation in shallow water, and soft plate in seedling field. (2) when transplanting, the row spacing of plants should be relaxed properly, and all single plants should be planted to increase the panicle proportion of low tillers in the field. (3) on the basis of sufficient basal fertilizer, heavy application of panicle fertilizer to attack large panicle and skillful application of grain fertilizer to increase seed setting rate and 1000-grain weight. Apply paclobutrazol in time to prevent lodging. (4) panicle fertilizer was applied twice, which was applied at the dew tip of the fourth leaf and the leaf age of 15.01, respectively. In order to improve the seed setting rate of branches at the base of panicle, multi-liquid compound fertilizer and 920 were sprayed at the right time. (5) pay attention to the timely control of rice false smut and rice blast.