磷钾配合施用对茼蒿品质的影响  

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

作　　者：陈斌[1] 郭爱珍[2] 韩鹏远[1] 

机构地区：[1]山西省农业科学院试验研究中心,太原030000 [2]山西省农业科学院现代农业研究中心,太原030000

出　　处：《农学学报》2015年第5期48-52,共5页Journal of Agriculture

基　　金：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)

摘　　要：为研究不同磷肥和钾肥耦合对蔬菜品质的影响,以茼蒿为试验材料,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。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 vitanfin C, reducing sugar and amino acid of C. coronarium under combined application of different phosphorus （P） levels and different potassium （K） fertilizers. The main results showed that under the 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〉KCI〉K2SOe〉CK, the concentration of reducing sugar decreased in this order： KH2PO~〉K2SO4〉KNO3〉KCI〉CK, and the concentration of amino acid decreased in the order： KH2P04〉 KNO3〉CK〉K2SOg〉KC1. With 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 the highest with combined application of KH2P04 and high P fertilizer.

关 键 词：磷钾配合施用 茼蒿 品质 

分 类 号：S143.4[农业科学—肥料学]