论文部分内容阅读
杨树是我省主要速生用材树种之一。引种栽培国外杨树良种,丰富扩大杨树树种资源。是当前发展我省杨树造林事业的一个途经。遵照毛主席“有了优良品种,即不增加劳动力,肥料,也可获得较多的收成”的教导和《全国农业发展纲要》中关于“大力培育新品种,并且注意引种外地和外国的良种”的指示,多年来,全省各地广大群众,在大力发展本地杨树良
Poplar is one of the main fast-growing timber species in our province. Introduction and cultivation of foreign poplar varieties, rich expansion of poplar tree resources. It is a way to develop poplar afforestation in our province at present. In accordance with Chairman Mao’s teaching on “having good varieties, that is, not having more labor and fertilizers, but also obtaining more crops,” and the “Outline for the National Agricultural Development” on “vigorously cultivating new varieties and paying attention to the introduction of improved varieties in foreign and foreign countries” Over the years, the vast masses of people all over the province, vigorously develop the local Yang Shuliang