氮钾互作对德州小火茄生长发育及产量的影响
Effects of Nitrogen and Potassium on Growth and Yield of Dezhou Small Eggplant
王磊 1贺洪军 2王薇 2徐光东 2甘延东 2朱金英2
作者信息
- 1. 德州市农业科学研究院,山东德州253015;山东农业大学园艺科学与工程学院,山东泰安271018
- 2. 德州市农业科学研究院,山东德州253015
- 折叠
摘要
采用二次饱和D-最优设计,研究氮肥和钾肥对德州小火茄生长发育和产量的影响,建立德州小火茄产量与氮肥和钾肥间的二元二次数学模型.结果表明,合理的氮钾配比有利于德州小火茄植株的生长与发育.同时通过对模型进行解析得出,氮肥和钾肥对德州小火茄的产量具有显著影响,且钾肥影响大于氮肥,两者之间存在显著的交互作用.因此,氮肥施肥量为18.22 kg/667m2,钾肥施肥量为33.75 kg/667m2时,德州小火茄有望获得最高产量(3 753.56 kg/667m2).
Abstract
The effects of nitrogen and potassium on growth and yield of Dezhou small eggplant were studied with the design of double saturated D-optimal regression,and the a mathematical model was established with independent variables of N and K applied and dependent variables of yield.The results showed that plant growth and development of Dezhou small eggplant had improved with reasonable ratio of nitrogen and potassium.The model analysis showed that yield of Dezhou small eggplant was influenced largely by nitrogen and potassium and their interaction,and potassium had heavier effect than nitrogen.When the mount of nitrogen was 18.22 kg/667m2,and the mount of potassium was 33.75 kg/667m2,the highest yield of Dezhou small eggplant could be 3 753.56 kg/667m2.
关键词
德州小火茄/氮肥/钾肥/生长发育/产量Key words
Dezhou small eggplant(Solanum melongena L.)/Nitrogen/Potassium/Growth/Yield引用本文复制引用
基金项目
山东省现代农业产业技术体系专项资金(201002-04)
出版年
2013
国家科技期刊平台
NSTL
维普
万方数据