Key Points of High-Yield Cultivation Techniques for the Japonica Hybrid Rice Liuyou No. 1

Through analysis of the field growth and yield structure of Liuyou No. 1, its main technical measures are considered to be: (1) Fully adopt the two-stage seedling method of dry raising and water transplanting. Apply fertilizer scientifically, strictly manage water and slurry, master shallow-water frequent irrigation, and use soft-board transplanting in the seedling-nursing field. (2) Appropriately widen the plant and row spacing at transplanting, use single-plant transplanting throughout, and increase the proportion of productive tillers from low nodes in the main field. (3) On the basis of applying sufficient basal fertilizer, heavily apply panicle fertilizer to promote large panicles, skillfully apply grain fertilizer to increase the seed-setting rate and thousand-grain weight. Apply paclobutrazol in a timely manner to prevent lodging. (4) Apply panicle fertilizer in two applications, respectively when the 4th leaf from the top emerges and at leaf age 15.01. To improve the seed-setting rate of the branches at the base of the panicle, spray polyelement liquid compound fertilizer and 920 at the appropriate time. (5) Attach importance to the timely control of rice false smut and rice blast.