WANG Chun-li,CHU Jin-ping,AYIXIAMU Tuohuti,et al.Effect of Different Proportions of Nitrogen,Phosphorus and Potassium on the Quality of Processing Tomato Seedling[J].Northern Horticulture,2014,38(14):14-18.
氮磷钾不同配比对加工番茄育苗质量的影响
- Title:
- Effect of Different Proportions of Nitrogen,Phosphorus and Potassium on the Quality of Processing Tomato Seedling
- 文章编号:
- 1001-0009(2014)14-0014-05
- Keywords:
- processing tomato; tray-soilless; seedling leaf area; chlorophyll
- 分类号:
- S 641.2
- 文献标志码:
- A
- 摘要:
- 以新疆加工番茄主栽品种“里格尔87-5”为试材，采用正交设计，设置N、P、K不同配比25个处理，各处理分3次喷施加工番茄穴盘苗，测定分析幼苗的株高、茎基粗、叶面积、鲜重、叶绿素含量（SPAD值）、地上部鲜重、干重和地下部鲜重、干重，并计算干重根冠比和壮苗指数。结果表明：第2次喷施肥后，2 kg水配N∶P∶K为2.73∶2.73∶4.90 g（处理13）溶液喷施幼苗，株高和单株鲜重增长量最多；2 kg水配N∶P∶K为3.08∶0.91∶2.94 g（处理11）溶液喷施幼苗，单株叶面积增长量最大。在加工番茄穴盘苗第2次喷施肥，即2～4叶期，N∶P∶K合理配比可显著增加加工番茄穴盘苗单株叶面积、株高和鲜重，促进营养生长。喷施肥3次后，2 kg水配N∶P∶K为2.36∶1.82∶1.47 g（处理24）溶液喷施幼苗，叶绿素含量SPAD值最高；2 kg水配N∶P∶K为3.08∶0.91∶2.94 g（处理11）溶液喷施幼苗，单株叶面积最大。氮素养分对加工番茄穴盘苗的单株叶面积影响显著，对叶绿素含量SPAD值影响极显著，各处理对加工番茄穴盘苗的株高、茎基粗、地上部干重、根部干重、全株干重、干重根冠比及壮苗指数影响不显著。
- Abstract:
- Taking main processing tomato seedling of ‘Ligeer 87-5’ as test materials,the seeding had been irrigated 3 times by 25 kinds of treatment with different N∶P∶K mixture ratio by an orthogonal experimental design.After each watering,plant height,stem diameter,leaf area,fresh weight,chlorophyll content (SPAD value),aboveground fresh weight,dry weight and fresh weight,dry weight of underground part,and the dry weight of root cap ratio and strong seedling index were determined.The results showed that the plant height and fresh weight of seeding which sprayed by solution with N∶P∶K mixture ratio as 2.73∶2.73∶4.90 g per 2 kg water was extremely the highest after No.2;leaf area of seeding which sprayed by solution with N∶P∶K mixture ratio as 3.08∶0.91∶2,94 g per 2 kg water was extremely the highest.Processing tomato hole tray seedling nitrogen injection for the second time,namely 2～4 leaf stage,reasonable ratio of N∶P∶K could significantly increase the processing tomato hole tray seedling leaf area per plant,plant height and fresh weight,promote the nutrition growth.The plant SPAD of seeding which sprayed by solution with N∶P∶K mixture ratio as 2.36∶1.82∶1.47 g per 2 kg water was extremely the highest after three times spraying;leaf area of seeding which sprayed by solution with N∶P∶K mixture ratio as 3.08∶0.91∶2.94 g per 2 kg water was extremely the highest.Nitrogen had extremely significant effect on SPAD of processing tomato plug seedling and had significant effect on plant height and leaf area,the treatments had unsignificant effect on plant height,stem thick,above ground dry weight,root dry weight,total plant dry weight,dry weight of root cap ratio and strong seedling index of processing tomato plug seedling.
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备注/Memo
第一作者简介：王春丽（1966-），女，本科，副教授，现主要从事作物栽培及土壤肥料和植物生理等研究及教学工作。E-mail：690381725@qq.com.