稻麦的密植问题,本世纪六十年代以来,前人已做过大量的研究,其结果基本上表明:单株穗数与产量呈正相关.随着现代稻田肥力水平的提高,矮秆良种及杂交稻的推广对于植株稀密问题,又引起各方面的重视.近年来,国内凌启鸿等以水稻叶龄模式作指标,作了以“小群体、壮个体、高积累”为核心的栽培模式研究;蒋彭炎等作了“稀、少、平”高产栽培研究等;日本也有稀播少本而获高产的先例.这使我们想到Thompson (1942) The close planting of rice and wheat, since the sixties of this century, the predecessors have done a lot of research, the results basically show that: the number of panicles per plant and yield were positively correlated with the level of modern paddy fertility, dwarf varieties and In recent years, the domestic Ling Qihong and other rice leaf age model as an indicator, made “small groups, Zhuang individuals, high accumulation ” as the core of the cultivation Model research; Jiang Pengyan made “thin, less, flat ” high-yielding cultivation studies; Japan also has thin sowing rare and high yield of the precedent.This reminds us of Thompson (1942)