• ISSN 1008-505X
  • CN 11-3996/S

菊科花卉常见缺素症及植株养分含量变化探讨

Study on common symptoms of element deficiency and concentration changes of nutrients in compositae plants

  • 摘要: 通过溶液培养的方法,研究了3种主要菊科花卉(金盏菊、孔雀草、万寿菊)在缺N、P、K、Ca 、Mg、S条件下的缺素症状及其生物量与营养元素变化情况。结果表明,金盏菊、万寿菊缺N,孔雀草缺K时症状最为明显;缺N对金盏菊、孔雀草、万寿菊的植株生物量影响最大;与全素(CK)相比,金盏菊和万寿菊缺K处理植株N浓度增加,3种花卉缺N、缺K处理均增加植株的P含量,但缺P处理降低植株K浓度,缺K处理增加含Ca量,缺Ca处理增加含K量和含Mg量,金盏菊缺Mg处理的含K量增加,3种花卉缺S处理植株S含量降幅不大,孔雀草和万寿菊缺N、P、K、Ca处理均可导致植株S含量增加。

     

    Abstract: Three compositae plants, as Calendula officinalis, Tagetes patula, Tagetes erecta, were cultured in N, P, K, Ca, Mg and S deficient solution. The nutrient deficiency symptoms, biomass and nutrient concentration of plant were studied. The results showed that N deficiency of Calendula officinalis and Tagetes erecta were most visible, while the deficiency of Tagetes patula cultured under K deprived solution was most visible. Compared to CK, N concentration of Calendula officinalis and Tagetes erecta increased when cultured under K deprived solution. Of all the three plants, P concentration increased when plant grown without N or K, and K concentration decreased when P was deficient. K and Mg concentration increased when Ca was deficient. Ca concentration was increased when K was not supplied. K concentration of Calendula officinalis was enhanced when Mg was not supplied. S concentration of three plans was not decreased gradually without S being supplied, and S concentration of Tagetes patula and Tagetes erecta were enhanced when N, P, K and Ca were deficient.

     

/

返回文章
返回