精播，顾名思义，就是播种量的精确和种子在种床位置的精确。具体讲就是按照农艺要求，以确定的株距、行距和播深，每穴一粒将种子播入耕层中的一项科技含量较高的农机技术。 精播技术不仅适宜大田，更适宜育种田。原因主要有： （一）省种，降低生产成本。采取传统方式播种， Precision broadcast, as the name implies, is precisely the amount of sown seeds and seeds in the exact position. Specifically speaking, according to the requirements of agronomy, in order to determine the plant spacing, spacing and sowing depth, each hole a seed into the top layer of a high-tech agricultural technology. Precision broadcast technology is not only suitable for the field, more suitable for breeding. The main reasons are: (a) provincial species, reduce production costs. Take the traditional way of sowing,