杨树为我国最主要的速生用材林之一。随着国家禁伐天然林及退耕还林政策的实施,给速生杨产业带来巨大的发展机遇。 速生杨在落叶之后至第二年发芽之前,均可扦插育 Poplar is one of the most important fast-growing timber forests in our country. With the implementation of the national banned natural forests and the policy of returning farmland to forests, it has brought tremendous development opportunities to the fast-growing poplar industry. Poplar can grow cuttings before germination in the second year after deciduous