摘要
为研究氮、磷、钾肥对秋植茄子生长和产量的影响,开展了"3414"肥料效应试验研究。结果表明,氮、磷、钾肥对秋植茄子均具有显著的增产效果;秋植茄子施氮最高增产45.8%,施磷最高增产30.9%,施钾最高增产35.8%。氮、磷、钾肥间存在明显的交互作用,配合施用能提高肥效,三因素对茄子产量的影响大小顺序为氮>钾>磷。本试验条件下,三元二次方程拟合结果表明,达到经济最佳产量时的氮(N)、磷(P2O5)、钾(K2O)施用量分别为164.9、107.1、186.3 kg·hm-2。
＂3414＂fertilization effect experiment was constructed to test the effect of N-P-K fertilizer on growth and yield of autumn planting eggplant. The result showed that N-P-K fertilizers could bring significant increasing of yield. Nitrogen（ N）,phosphorus（ P） and potassium（ K） fertilizers increased the yields by 45. 8%,30. 9%,35. 8% in maximum,respectively. The combined applications of N,P and K had interactions with each other and the ability to increase eggplant yield was N 〉K〉 P. Under the condition of this experiment,the fitting results of the developed quadratic equation with three variables showed that the application amounts of nitrogen（ N）,phosphorus（ P2O5） and potassium（ K2O） for the economic optimum yield were 164. 9 kg·hm^- 2,107. 1 kg·hm^- 2,186. 3 kg·hm^-2,respectively.
出处
《中国土壤与肥料》
CAS
CSCD
北大核心
2015年第1期33-37,共5页
Soil and Fertilizer Sciences in China
基金
江苏省农业科技自主创新资金[编号:CX(13)2003]
南京市中小企业创新基金项目[编号:2013创基064]
关键词
茄子
“3414”肥效试验
施肥效果
推荐施肥量
eggplant
＂3414＂fertilization experiment
fertilization effect
recommended fertilizer application amount
