文章摘要
李佩华,邓 琳,彭正松 * ,方志荣,清 源,蔡光泽,周晓利,汪翠存.种植密度与N、P、K施肥配比对青薯9号产量的影响研究[J].西昌学院学报(自然科学版),2020,34(3):15-21.
种植密度与N、P、K施肥配比对青薯9号产量的影响研究
Effects of Planting Density and N,P,K FertilizerApplication Rate on the Yield of Qingshu Seed No. 9
  
DOI:
中文关键词: 马铃薯  二次正交旋转组合设计  产量  单株重  株高
英文关键词: potato  quadratic orthogonal rotation combination design  yield  plant weight  plant height
基金项目:四川省科技计划项目(2016NZ0056);四川省“十三五”薯类育种攻关项目(2016NYZ0032-4);国家现代农业产业技术体系四川薯类创新团队项目(川财教〔2019〕59号);四川省粮食作物农业气象指标体系研究(2018-重点-05-01)。
作者单位
李佩华,邓 琳,彭正松 * ,方志荣,清 源,蔡光泽,周晓利,汪翠存 西昌学院四川 西昌 615013 
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中文摘要:
      以西南山区主推马铃薯品种青薯9号原种为材料,采取4因素5水平二次正交旋转组合设计,研究种植密度,氮、磷、钾施用量对青薯9号产量、单株重与株高之间的综合效应,通过数学模型分析表明:种植密度、氮、磷、钾施用量单因子对产量的影响排序为:氮肥>种植密度>磷肥>钾肥;对单株重的影响排序为:氮肥>钾肥>种植密度>磷肥;对株高的影响排序为:种植密度>氮肥>钾肥>磷肥。计算机频数分析表明:当种植密度为4 543~4 691 株/666.7 m 2 ,尿素施用量为11.85~12.54 kg/666.7 m 2 ,过磷酸钙施用量为32.2~32.85 kg/666.7 m 2 ,硫酸钾施用量为37.415~42.08 kg/666.7 m 2 时,青薯9号产量在1 900 kg/666.7 m 2 以上,单株重在0.51 kg/株以上。
英文摘要:
      The comprehensive effects of planting density and the application rate of nitrogen, phosphorus and potassium on the yield, plant weight and plant height of potato Qingshu No.9, which is a featured product in the southwest mountainous regions in China, are studied by means of combined design of four factors, five levels and quadratic orthogonal rotation. The results of mathematical model analysis show that the order of the effects of planting density, application rates of nitrogen, phosphorus and potassium on yield is nitrogen fertilizer > planting density > phosphorus fertilizer > potassium fertilizer; the order of the effects on plant weight is nitrogen fertilizer > potassium fertilizer > planting density > phosphorus fertilizer, and the order of effects on plant height is planting density > nitrogen fertilizer > potassium fertilizer > phosphorus fertilizer. The computer frequency analysis shows that when the planting density is 4 543~4 691 plants/666.7 m 2 , urea application rate is 11.85~12.54 kg/666.7 m 2 , superphosphate application rate reaches 32.2~32.85 kg/666.7 m 2 , and potassium sulfate application rate reaches 37.415~42.08kg/666.7 m 2 , the yield of Qingshu No.9 is above 1 900 kg/666.7 m 2 , and the plant weight is above 0.51 kg/plant.
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