孙治强,李胜利,张艳玲. 锯末基质中氮磷钾施用量与番茄幼苗生长的关系[J]. 华南农业大学学报, 2004, 25(1): 25-28. DOI: 10.7671/j.issn.1001-411X.2004.01.007
    引用本文: 孙治强,李胜利,张艳玲. 锯末基质中氮磷钾施用量与番茄幼苗生长的关系[J]. 华南农业大学学报, 2004, 25(1): 25-28. DOI: 10.7671/j.issn.1001-411X.2004.01.007
    SUN Zhi-qiang,LI Sheng-li,ZHANG Yan-ling. Relationship between N, P and K application and the growth of tomato seedling sowed in the sawdust-rich substrates[J]. Journal of South China Agricultural University, 2004, 25(1): 25-28. DOI: 10.7671/j.issn.1001-411X.2004.01.007
    Citation: SUN Zhi-qiang,LI Sheng-li,ZHANG Yan-ling. Relationship between N, P and K application and the growth of tomato seedling sowed in the sawdust-rich substrates[J]. Journal of South China Agricultural University, 2004, 25(1): 25-28. DOI: 10.7671/j.issn.1001-411X.2004.01.007

    锯末基质中氮磷钾施用量与番茄幼苗生长的关系

    Relationship between N, P and K application and the growth of tomato seedling sowed in the sawdust-rich substrates

    • 摘要: 研究了以V(锯末)∶V(蛭石)∶V(煤灰)=6∶2∶2为基质培育番茄幼苗时,基质中氮磷钾施用量与幼苗生长的关系.结果表明,氮、磷和氮磷互作对幼苗生长影响较大,在试验范围内,幼苗生长随氮磷施用量的增加而增加,成直线关系,幼苗各指标在尿素2 4kg·m-3,过磷酸钙29 5kg·m-3时达最大值.氮磷互作对幼苗生长也有促进效应,但磷对幼苗生长的效应取决于氮的水平.低氮时,幼苗生长随磷施用量的增加而减弱;高氮时,磷对幼苗生长则有促进作用.钾对幼苗的生长没有影响,所有偏回归系数均不显著.因此,在以该基质培育番茄苗时,可用氮磷复合肥液替代完全营养液.

       

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