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五、关于烟叶资源有效利用问题农业再生产过程是同自然再生产过程联系在一起的,这是烟叶生产的一个根本的特点。我国可生产烟叶的地域虽然广泛,但毕竟受到环境和自然条件的制约,烟叶数量和质量规格总是有限的。因此,有计划地开发和有效地利用资源是十分必要的。(一)当前在烟叶资源利用上存在的若干
Fifth, the effective use of tobacco resources on the issue of agricultural reproduction is linked with the natural reproduction process, which is a fundamental feature of tobacco production. Although China can produce a wide range of tobacco, but after all, subject to environmental and natural conditions, the number and quality of tobacco leaf is always limited. Therefore, it is very necessary to develop and use resources effectively in a planned way. (A) of the current use of tobacco resources on the number of existence