摘要
为了探讨氮、磷、钾3种元素对胡椒花穗抽生及相关指标的影响大小及主要影响元素,以主栽品种‘热引1号’胡椒为试验材料,以氮(0、2.15、6.46和19.39 g/盆)、磷(0、2.16、6.66和20 g/盆)、钾(0、3.12、9.37和28.12 g/盆)肥3因素4水平进行正交试验,研究其对胡椒花穗抽生、花穗脱落、叶片SPAD值、地上部干重等相关指标影响。结果表明,氮、磷、钾3种元素中对胡椒抽穗、花穗脱落、叶片SPAD值、植株干重影响较大的均为氮素,其次为磷或钾。分析表明,氮素对胡椒花穗抽生及相关指标的影响最大。
In order to evaluate the performance of nitrogen （N）, phosphorus （P）, potassium （K） for pepper flowering, orthogonal experiment was conducted with N, P, K 3 factors and 4 levels in 2013 in greenhouse. Number of spike, flower abscission, SPAD reading and above ground dry biomass were measured to assess N, P, K effects. N was the main nutrient element influence number of spike, flower abscission, SPAD reading and above ground dry biomass, followed by P or K. In Conclusion, N was the main nutrient element influence spikes development and related indexes.
出处
《热带农业科学》
2014年第10期28-32,共5页
Chinese Journal of Tropical Agriculture
基金
海南省中药现代化项目(No.ZY201321)
海南省重大科技专项项目(No.ZDZX2013020)
关键词
氮
磷
钾
胡椒
抽穗
nitrogen
phosphorus
potassium
pepper
