低产柑桔园植株叶片及土壤营养状况分析及评价  

Studies and Evaluation on Contents of Nutrient Elements of Soil and Citrus Leaves in Low-yield Citrus Orchard

作　　者：黄玉溢[1] 王影 陈桂芬[1] 刘斌[1] 

机构地区：[1]广西农科院土肥所,广西南宁530007 [2]广西大学农学院,广西南宁530005

出　　处：《土壤通报》2009年第1期118-121,共4页Chinese Journal of Soil Science

基　　金：广西科学基金资助项目(桂科自0447018)

摘　　要：对广西柑桔低产园0～30cm土壤样品10个进行了土壤pH、有机质及有效氮、磷、钾、钙、镁、锌、硼含量测试分析,同时对10个柑桔叶片样品的营养元素的含量进行测定。结果表明,柑桔低产园土壤pH偏低,平均为5.26;土壤有机质、速效氮和钾含量比较丰富,平均含量分别为30.2gkg-1,117mgkg-1和164mgkg-1;土壤有效钙、镁、锌、硼缺乏比较严重;柑桔叶片氮、磷含量处于适量范围,含钾量为适量或高量,而叶片缺乏中微量营养元素钙、镁、锌和硼;柑桔园土壤pH、有机质与多个大中微量元素有效养分之间存在显著或极显著正或负相关关系,柑桔叶片氮、钾、钙、镁、锌、硼含量与土壤多种养分含量之间存在一定的相关性。The soil pH, the contents of soil organic matter, soil available N, P, K, Ca, Mg, Zn, B in 10 soil samples, and the nutrient elements in 10 citrus leaf samples from low-yield citrus orchard in Guangxi were determined. The results showed that the soil pH was low, and its average value was 5.26. The soil organic matter, available N and K in the citrus orchard soil were relatively in high range, and theirs average contents were 30.2g kg^-1, 117mg kg^-1 and 164mg kg^-1, respectively. However, the soil available Ca, Mg, Zn, and B were considerably deficient. The total contents of N and P in the leaves were in optimum range, and k content was appropriate or much higher, while total Ca, Mg, Zn, and B contents were seriously deficient. The results also indicated that significant positive or negative correlation existed between soil pH, soil matter, and available nutrients, as well as there were correlations between the contents of N, P, K, Ca, Mg, Zn, B in leaves and the contents of some soil nutrient elements.

关 键 词：低产柑桔同 土壤有效养分 叶片营养 相关性 

分 类 号：S666[农业科学—果树学] S601[农业科学—园艺学]