摘要
在一定的栽植密度范围内,甜菜种子的产量随母根重量增加而增加。春育母根个体重量以400～600克为宜。母根应按大(700～900克)、中(400～600克)、小、(100～300克)分类栽植。在哈尔滨地区,采种母根栽植的行距为70cm,株距为:大母根60cm(合23850株/公顷)、中母根50cm(合28500株/公顷)、小母根40cm(35700株/公顷)。
The results of the field test which was made from 1979 to 1981 showed that on certain conditions of planting density the per unit-area seed yield of sugarbect went upwards with the increase in the weight of seed beet. The appropriate weight of the spring-sowing-cultivated seed beet was 400—600 grams per plant. The seed beets should be divided into three types (the weight of 700—900g/plant as the heavy, the one of 400-600g/plant as the middle and the one of 100—300g/plant as the light) and then planted in different seed fields, In Harbin region tire planting rate of seed beet was 70×60cm for the heavy type, 70×50cm for the middle one and 70×40cm for the light one.
出处
《中国甜菜糖业》
1992年第2期17-20,共4页
China Beet & Sugar
关键词
甜菜
采种
母根重
密度
Sugarbeet Seed production Weight of seed beet Density
