自20世纪80年代以来,中国对抛秧稻作进行了大量的研究与示范推广工作,使抛秧稻作获得了惊人的进展,逐渐形成了集省工省力与高效于一体、能适应各种稻作体制和中国农村经济状况的抛秧稻作技术体系。该体系主要由以下6个方面构成:(1)阐明了抛秧立苗过程;(2)剖析了田间分布格局及其生态生理效应;(3)揭示了生长发育与产量形成的基本特征;(4)研明了高产形成规律及调控途径;(5)创立了多样化实用育秧方法;(6)研究并集成了大田培管配套技术。该技术体系的4个主要特征:(1)是一个内涵极为丰富的多元结构技术体系;(2)具有在实事中求“是”的科学基础;(3)实用性强、、应用性广、推广速度快;(4)紧扣现代稻作发展实际,不断破旧创新。
The cultivation techniques of rice seedling broadcasting have been developed since 1980s when a series of researches and applications for seedling broadcasting were conducted. And then a labor saving and high efficiency cultivation system of rice seedling broadcasting was developed which is suitable for multiple cropping systems and rural economic conditions in China. The system is composed of 6 parts which are showed as follows. (1) The process of seedling standing and establishing was studied and it could be divided into three successive phases including physical, physiological and morphological standing. (2) Spatial distribution of seedlings in field and its eco-physiological effects were also analyzed. Compared with manual transplanting, the broadcasted seedlings inserted into soil shallowly in the vertical and were distributed quasi-even randomly on the horizon. Therefore, the environment conditions around tiller nodes and rice canopy were both improved. (3) Compared with conventional rice cultivation, seedling broadcasting has four superiorities and three inferiorities. The basic characteristics of growth and development and yield formation of seedling broadcasting rice were also discussed in this text. (4) The formation of high yield and its regulation approaches of seedling broadcasting rice were elucidated through summarizing many related literatures. (5) The multiple practical methods of raising seedlings in seedling broadcasting rice cultivation were established through so many years' researches. (6) The system also included the suitable cultivation and regulation techniques in seedling broadcasting rice production in field. The cultivation technical system of seedling broadcasting rice is practical and realistic on the basis of science researches and it is characterized as a profuse connotation multiform system. The system is practical and applied widely by continuous innovating according to the demands of seedling broadcasting rice production.