据“日本产业新闻”报道,王子造纸公司林木育种研究所对银白杨快速培育的试验,方法和过程如下: 在耕耘平整的试验田上,栽植如铅笔粗细大小的银白杨树苗,株距20-40厘米,行距70-100厘米。从每公顷试验田栽植密度上,分4万、6万和8万株三类。植树季节为春季。银白杨在白杨类中,生长速度最快。这 According to “Nihon Shinkin Shimbun”, the test, method and process for the rapid cultivation of poplar by the Prince Plantation Research Institute of Oji Paper Co., Ltd. are as follows: In the field of flat cultivation, silver poplar seedlings of pencil size and thickness are planted with spacing of 20-40 cm , 70-100 cm spacing. From the experimental plot per hectare planting density, divided into 40,000, 60,000 and 80,000 strains of three categories. Tree planting season is spring. Poplar Poplar in the category, the fastest growing. This