摘要
对鲁薯6号甘薯新品种的高产特性进行了观察研究。在轻壤土条件下春薯获得亩产5085.6kg,夏薯在壤土条件下获得亩产3500kg以上的高产量。还苗快,前期茎叶生长速度快,中期生长平稳而黄落叶少,后期下降缓慢,中、后期块根膨大速度快为其突出特点。在养分吸收方面前期氮素代谢水平高,中后期钾的吸收量大,K^2O/N值高,从而有利于高产。
The characters concerning high yield of sweet potato variety—Lushu-6 were researched from 1989-1991. The results indicated that the variety displayed faster reviving after transplanting, stems and leaves development fast in earlier period, stability and a few fallen leaves in middle period and declining slowly in late, Its outstanding characteristic is root tuber-inflating-fast in middle and late period, In absorbing nutrients, it possesses the traits of higher N-element in middle and later period and higher K20 ratio, These are advantageous to the high yield of root tubers. 5085. 6kg yield per mu in spring sweet potato was achieved under condition of light loam in 1989 and in summer sweet potato, the over 3500kg yields per mu were gotten under the condition of loam from 1990～1991.
出处
《莱阳农学院学报》
1992年第3期201-204,共4页
Journal of Laiyang Agricultural College
关键词
钾氮比
甘薯
品种
高产
sweet potato variety
high-yield
K_2O/N ratio
