摘要
本文利用最优回归设计“310”方案,研究了黑土地甜菜 Zn、K_2O、B的效果及合理施用问题。得出甜菜块根产量、含糖、产糖量、灰分 K 和有害 N 与 ZnK_2O、B 肥回归关系显著的回归模型,分析了 Zn、K_2O、B 对上述五个指标的效应,明确了 Zn 是影响各项指标的主要因子,并采用频率筛选法,提出了兼顾上述五项指标的优质高产施肥措施。
This paper discussed the effects of Zn K B to sugarbeet and its adequate application on the black soil in HuLan county HeilongJiang province by using the regression design—‘301’.The study showed that root yield,sugar content,sugar yield,ashed K and harmful N content have prominent regressive equations with applying Zn,K_2O,B ferilizers,in which the regression coefficients reached significant difference(5% statistic level).It also analysed the effects of Zn K B to sugarbeet yield—puality,and found out that the Zn was the most important factor among Zn,K,B.At the end author proposed an optimum applying Zn K B technique by using the frequ- ent selecting method.
出处
《中国甜菜糖业》
1992年第4期13-19,共7页
China Beet & Sugar
关键词
最优回归设计
施肥
甜菜
The best regression design
Applying fertilizer technique
