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农学学报

农学学报 ›› 2015, Vol. 5 ›› Issue (5): 48-52.doi: 10.11923/j.issn.2095-4050.2014-xb0578

• 土壤肥料 资源环境 生态 • 上一篇    下一篇

磷钾配合施用对茼蒿品质的影响

陈斌   

  1. 山西省农业科学院
  • 收稿日期:2014-06-11 修回日期:2014-11-04 接受日期:2014-11-18 出版日期:2015-06-02 发布日期:2015-06-02
  • 通讯作者: 陈斌 E-mail:xy020824
  • 基金资助:
    山西省农业科学院攻关项目“叶菜类富硒蔬菜无土基质栽培研究”(2012ygg19)

The Effect of Combined Application of Phosphorus (P) Levels and Potassium (K) Fertilizers on the Quality of Chrysanthemum coronarium

  • Received:2014-06-11 Revised:2014-11-04 Accepted:2014-11-18 Online:2015-06-02 Published:2015-06-02

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摘要： 为研究不同磷肥和钾肥耦合对蔬菜品质的影响，以茼蒿为实验材料，通过盆栽试验，研究不同浓度磷肥施用并配施不同种类钾肥下茼蒿维生素C(Vc)，还原糖和氨基酸含量。结果表明：同等磷肥施用量条件下，配施不同钾肥处理茼蒿Vc、还原糖、氨基酸含量整体上分别表现为KH2PO4＞KNO3＞KCl＞K2SO4＞CK、KH2PO4＞K2SO4＞KNO3＞KCl＞CK和KH2PO4＞KNO3＞CK＞K2SO4＞KCl；不同磷肥施用量配施同种钾肥时，茼蒿Vc、还原糖、氨基酸含量普遍表现为随磷肥用量的增加而增加；配合KH2PO4施用在不同磷肥施用量条件下茼蒿Vc、还原糖、氨基酸含量均最高，其中在高水平Ca(H2PO4) 2条件下配施KH2PO4，茼蒿Vc、还原糖、氨基酸含量达最大值。

关键词: 液态有机肥, 液态有机肥, 棉花, 生理特性, 产量

Abstract: In order to understand the effect of phosphorous and potassium fertilizer on the quality of Chrysanthemum coronarium, a container experiment was conducted to study the concentrations of vitamin C, reducing sugar, and amino acid of C. coronarium combined application of different phosphorus (P) levels and different potassium (K) fertilizers. The main results showed that: combined application of the same level of P fertilizer and different K fertilizers, the concentration of vitamin C in C. coronarium decreased in this order: KH2PO4＞KNO3＞KCl＞K2SO4＞CK, the concentration of reducing sugar decreased in this order: KH2PO4＞K2SO4＞KNO3＞KCl＞CK, and the concentration of amino acid decreased following in the order: KH2PO4＞KNO3＞CK＞K2SO4＞KCl. When combined application of the same K fertilizer and different P levels, we found that the concentration of vitamin C, reducing sugar and amino acid increased with higher P level. In addition, the concentrations of vitamin C, reducing sugar and amino acid were highest combined application of KH2PO4 and high P fertilizer.