期刊论文

中文

湖南农业大学学报(自然科学版)

1007-1032

2007

33

3

341-344+357

10.3321/j.issn:1007-1032.2007.03.023

国家“十五”科技攻关项目（2001BA606A-B）；

本校为第一机构

分析、测定了桂西北环境移民示范区126片柑橘园的植株叶片和土壤的矿质元素含量.结果表明,柑橘园植株叶片营养状况整体较好,柑橘叶片N,P,Mg,Ca,Fe,Mn等元素含量适宜,K含量严重缺乏,Cu,Zn含量不同程度缺乏.柑橘园土壤存在酸性过强、有效Fe含量较高、交换性盐基(Ca,Mg,K)含量严重偏低的问题;土壤有机质,速效P,水解N含量适宜,而有效Cu,Zn含量缺乏.探讨了柑橘叶片矿质元素含量与土壤养分含量的相关性.结果表明,叶片营养元素的质量分数与土壤相应养分的质量分数很少存在显著相关,而叶片K,P,Ca,Fe,Mn,zn质量分数与土壤多种养分质量分数间存在一定的相关性,表明土壤养分与叶片元素含量间关系的复杂性.土...

The mass fractions of the mineral nutrient in leaves and soils of 126 orchards in demonstration area of environmental immigrants, Northwest Guangxi province were analysed. The results were as follows： the nutrition conditions of the mineral nutrient elements in leaves were generally good, mass fractions in the leaves such as N, P, Mg, Ca, Fe, Mn were optimum, K in the plants were considerably deficient, mass fractions of some trace elements such as Cu, Zn were deficient. In the soils of orchards, the problems such as stronger acidity, higher m...