随着人口的不断增长,土地面积的日益减少,以及农村劳动力大量向第二、第三产业持续转移,农户规模经营逐步扩大,农机业迅速发展,传统的大苗进行人工移栽作业方式已越来越不适应稻作生产发展的客观要求,培育秧龄短、叶龄小的中、小苗栽插(人工或机械)将是稻作生产技术的必然趋势,为水稻生产提供新的技术思路。1材料与方法1.1观察设置土壤类型为砂壤土,肥力中等偏上,前茬为小麦,供试品种为迟熟中 With the continuous increase of population, the decrease of land area and the continuous transfer of rural laborers to the secondary and tertiary industries, the gradual expansion of farmers’ scale management and the rapid development of agricultural machinery industry, the traditional way of transplanting seedlings has become more and more The less suited to the objective requirements of rice production and development, cultivating seedling age, small leaf age, planting seedlings (artificial or mechanical) will be the inevitable trend of rice production technology for rice production to provide new technical ideas. 1 Materials and methods 1.1 Observation Set the soil type of sandy loam, fertility moderately upper, the previous crop of wheat, the test varieties are late in the