不同浓度氮素对无土栽培一串红生长发育的影响

Effects of Different Concentration of Nitrogen on Growth Developmenth of Soilless Culture of Salvia splendens Ker.-Gawl

以矮生一串红＂展望＂品种为试材,研究了不同氮素施用量对无土栽培一串红生长发育的影响。结果表明：无土条件下,一串红适宜的氮素施用量为：Ca（NO3）2.4H2O 100~130 mg/100g水,可有效增加一串红茎粗、花序长、叶绿素含量、可溶性蛋白质含量及根系活力各指标,促进一串红的生长发育,使植株生长健壮,观赏性提高。

Different nitrogen fertilizer rates on growth development of soilless culture of Salvia splendens.The results showed that Salvia splendens appropriated nitrogen application rate was： Ca（NO3）2·4H2O 100~ 130 mg/100g H2O,could effectively increase the string of stem diameter,inflorescence length,chlorophyll content,soluble protein content and root activity the indicators,to promote the growth of a string of Salvia splendens,so that robust ornamental plant growth increased.