湖南柑橘园土壤无机磷素组分及其生物有效性  

Inorganic Phosphorus Components of Soil and Bioavailability in Citrus Orchard of Hunan Province

作　　者：周雨舟 刘沛[1] 谭洁[1] 曹胜[1] 黄兰 ZHOU Yu-zhou;LIU Pei;TAN Jie;CAO Sheng;HUANG Lan(College of Resources and Environment,Hunan Agricultural University,Changsha 410128,PRC)

机构地区：[1]湖南农业大学资源环境学院

出　　处：《湖南农业科学》2019年第7期55-57,60,共4页Hunan Agricultural Sciences

基　　金：现代农业(柑橘)产业技术体系专项基金(CARS-26);湖南省教育厅优秀青年基金(16B120);湖南省自然科学基金(2017JJ3120)

摘　　要：为了弄清柑橘园土壤—叶片—果实系统磷素养分迁移转化规律,在湖南省柑橘主产区的32个柑橘园采集了土壤、叶片与果实样品,研究了柑橘园土壤无机磷形态组成,叶片与果实磷素养分特征及其相互关系。结果表明:柑橘园土壤pH值平均为4.33;土壤无机磷组分以Al-P和Fe-P为主,分别为205.6和213.3mg/kg;叶片和果实全磷含量分别为2.69和1.80g/kg;叶片与果实全磷含量与土壤Al-P和Fe-P含量呈极显著正相关关系。In order to understand the law of phosphorus nutrient transfer and transformation in the soil-leaf-fruit system of citrus orchards,32 citrus orchards in the main citrus producing areas of Hunan Province were selected to collect samples of soil,leaves and fruits,and to study the forms and composition of inorganic phosphorus in the soil of citrus orchards,the characteristics of phosphorus nutrients in leaves and fruits and their relationships.The results showed that the average soil pH value of citrus orchard was 4.33;the main inorganic phosphorus components in soil were Al-P and Fe-P,which were 205.6 and 213.3 mg/kg,respectively;The total phosphorus contents in leaves and fruits were 2.69 and 1.80 g/kg,respectively;The total phosphorus content in leaves and fruits was positively correlated with Al-P and Fe-P content in soil.

关 键 词：柑橘园 无机磷 形态 叶片 果实 磷营养 湖南 

分 类 号：S666[农业科学—果树学]