内容提要：本文研究观察分析了抛秧稻的分蘖成穗率与穗层整齐度，并初步阐明提高分蘖成穗率与穗层整齐度是抛秧稻进一步高产的重要途径，同时指明了相应的栽培措施。８０年代以来，我国对水稻抛秧开展了较大规模的抛秧试验研究与推广，已取行了较大进展。在前人研究的基础... Abstract: In this paper, we observed and analyzed the rate of panicle tillering and the panicle uniformity of throwing rice, and initially clarified that increasing tillering panicle rate and panicle uniformity are important ways to throw rice seedlings into high yield. At the same time, Cultivation measures. Since the 1980s, our country has carried out large-scale throwing rice research and popularization on rice throwing seedlings and made great progress. The basis of previous studies ...