激光,是分子、原子、电子等微粒受其它光“刺激”而发出的只有一种波长组成的“纯光线”。激光的研究和应用是二十世纪六十年代最重大的科技成果之一。激光技术不仅广泛用于国防军事、工业、通讯、宇航、医疗卫生和科学研究等方面,而且在农业生产和农业科学研究上也大有用武之地。激光可以促进作物生长,提高产量和质量。小麦、大豆、油菜等种子经激光照射后,可提高发芽率,缩短生育期,减 A laser is a “pure light” of only one wavelength emitted by molecules, atoms, electrons and other particles that are “stimulated” by other light. The research and application of lasers was one of the most significant technological achievements of the 1960s. Laser technology is not only widely used in national defense, military, industrial, communications, aerospace, medical and health research and scientific research, but also in agricultural production and agricultural science. Laser can promote crop growth, improve yield and quality. Wheat, soybeans, rapeseeds and other seeds after laser irradiation, can increase the germination rate, shorten the growth period, less