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甜菜纸筒育苗移植栽培法由国外引入,到目前大面积推广已达十几年之久。这一技术已显示出提高甜菜单产的作用与潜在优势。1986年黑龙江省推广的面积为803ha,平均实收单产为28.8t/ha,到1990年推广面积16866.7ha,平均实收单产为34.17t/ha。齐齐哈尔地区自1986年至1991年平均实收单产31.5t/ha。这一产量与国外先进水平比还有差距。目前纸筒育苗甜菜较低水平的单产困扰着这一新技术更大面积的推广。本文仅就齐齐哈尔地区近几年推广该项技术工作中所存在的问题,谈谈影响这一新技术单产提高的原因及提高途径。
Beetle tube seedling transplant cultivation introduced by foreign countries, up to now large-scale promotion has reached more than 10 years. This technique has been shown to enhance the potential benefits of beet yield. In 1986, the area of promotion in Heilongjiang Province was 803ha, the average real yield was 28.8t / ha, the area of promotion was 16866.7ha in 1990, and the average real yield was 34.17t / ha. In Qiqihar, average yield was 31.5t / ha from 1986 to 1991. There is still a gap between this production and the advanced level in foreign countries. The current low yield of paper-tube seedling sugar beet plagued a larger area of this new technology promotion. This article only talks about the problems existing in the promotion of this technology in Qiqihar region in recent years and discusses the reasons and ways to improve the yield increase of this new technology.