近年来日本水稻机械化栽培发展速度很快。现在全国机械插秧面积已达到80.8％。为适应机械插秧的要求,在育秧技术上也有很大改进。据我们调查访问,不论南方和北方,育秧已全面实现工厂化和机械化。育秧全过程多在室内进行,不受外界条件限制。播种用播种机操作,发芽和绿化多在塑料棚内,温度、光照可以人工调节,灌水有的用自动装置。因此, In recent years, the rapid development of mechanization of rice cultivation in Japan. Now the country’s mechanical transplanting area has reached 80.8%. To meet the requirements of mechanical transplanting, seedling technology has also been greatly improved. According to our survey visit, regardless of the southern and northern China, seedling cultivation has been fully industrialized and mechanized. The whole process of raising seedlings indoors, not subject to external conditions. Sowing with seeder operation, sprouting and greening more in the plastic shed, the temperature, light can be manually adjusted, irrigation and some automatic devices. therefore,