作　　者： ; ; ; ; ; (徐国锦）; (伦天养）;

机构地区： 仲恺农业工程学院园艺园林学院

出　　处： 《仲恺农业工程学院学报》 2010年第4期16-19,共4页

摘　　要： 对沙糖桔(Citrus reticulata Blanco cv.Shatangju)示范园表层土壤和沙糖桔植株叶片营养状况进行了分析.结果表明,示范园土壤pH值为3.98～5.32,有机质平均含量为17.3 g/kg,低于最适值;有效氮(N)、磷(P)平均含量分别为86.88和19.20 mg/kg,与正常值比较处于适宜水平;有效钾(K)平均含量为63.55 mg/kg,表现为缺乏;中量与微量元素中有效硼(B)、镁(Mg)、钙(Ca)、锌(Zn)含量呈不同程度的缺乏;有效铜(Cu)、锰(Mn)含量适宜,而有效铁(Fe)含量高量或过量.沙糖桔植株叶片含磷量及含氮量处于比较适宜水平,而钾营养则严重缺乏.叶片中量元素Mg、Ca和微量元素Zn、B含量缺乏,Mn、Cu含量适宜,Fe含量则高出适宜范围. The nutrient status of soil and leaf for Citrus reticulata Blanco cv.Shatangju（shatangju） in demonstration orchard were investigated.The results showed that the soil pH value was from 3.98 to 5.32,and the soil organic matter content was 17.3 g/kg,and were lower than the optimun value.The available contents of N and P in the soils were 86.88 and 19.20 mg/kg,and suitable for shatangju growth,but the available content of K was only 63.55 mg/kg and not suitable for shatangju.Among the middle and micro elements the available contents of B、Mg、Ca、Zn were low,available contents of Mn,Cu were suitable for shatangju growth,and available Fe content was higher in the soil.The levels of K、B、Mg、Ca、Zn in the leaves of Shatangju were deficient,the contents of N,P,Mn,Cu in the leaves were suitable for shatangju development,but Fe content was excessive in the leaves.

关 键 词： 沙糖桔 示范园 营养状况 土壤 叶片

领　　域： [农业科学] [农业科学] [生物学]