早稻育秧至今仍然存在的一个普遍问题是成秧率低,用种量大。这既浪费了种子,增加了生产投资还影响了早稻产量;严重的甚至贻误农时,打乱全年作物布局和生产部署,导致生产上一系列被动。因此,分析研究早秧育秧成秧率的问题,深入探讨提高成秧率的途径,是农业生产上的一个重要课题。 A common problem with early rice seedling so far is that it is low in seedling yield and large in seed. This is a waste of seeds, increased investment in production also affected the early rice production; severe or even delaying farming, disrupt the annual crop layout and production and deployment, resulting in a series of passive production. Therefore, it is an important issue in agricultural production to analyze and study the problem of planting seedlings for early seedlings and to explore the ways to improve seedling yield.