摘要
采用“双佳值”法完全试验设计对红壤旱地芝麻氮、磷、钾肥的最佳配比及其不同总用量与不同的播种期相互作用对产量影响进行了综合研究。结果表明，芝麻Ｎ、Ｐ２Ｏ５、Ｋ２Ｏ的最佳摩尔比为４３∶３７∶２０。以此比例的不同总施肥水平与分期播种两两正交，试验产量经非线性多元回归分析得知，总施肥水平与播种期在交互作用，当总施肥量ｘ１＝１．６９２６倍于１１．２３５ｋｍｏｌ／ｈｍ２，同时在６月１０日播种的情况下，能获得芝麻的最高产量７９６．８ｋｇ／ｈｍ２。
The double-optimum-valule method and complete randomized block design was employed in this experiment to study the effects of N, P, K proportion, total fertilization, sowing time, and their interaction on the yield of sesame planted in red soil upland. The results indicated that the optimum ratio of N, P 2O 5, and K 2O was 43∶37∶20,and the interaction between total fertilization and sowing time was revealed by nonlinear multifactorial regression analysis. The highest yield, as much as 796.8kg/hm 2, was obtained when the total fertilization was 19.02 kmol/hm 2, and the sowing time was June 10.
出处
《江西农业学报》
CAS
1997年第1期33-39,共7页
Acta Agriculturae Jiangxi
关键词
最佳配比
施肥量
播种
产量
芝麻
Optimum proportion
Total fertilization
Sowing time
Yield
