赣南脐橙园土壤基本养分含量分析与评价  

Analysis and Evaluation on Basic Nutrient Contents in the Soil of Navel Orange Orchards in Southern Jiangxi

作　　者：刘桂东[1] 姜存仓[1] 王运华[1] 彭抒昂[2] 陈国标[1] 钟八连 曾庆銮 

机构地区：[1]华中农业大学微量元素研究中心,武汉430070 [2]华中农业大学园艺林学学院 [3]江西省赣州市果业局

出　　处：《中国南方果树》2010年第1期1-3,8,共4页South China Fruits

基　　金：国家科技支撑计划"赣南脐橙非病原性生理病害的成因研究与防治示范"(编号:2007BAD61B01);国家科技支撑计划"果树蔬菜高效施肥技术模式研究"(编号:2008BADA4B05)资助

摘　　要：分析赣南脐橙产区8个县的31个脐橙园0～30 cm表层土壤样品。结果表明,该产区74.19%的桔园土壤pH值属适宜范围;54.84%的桔园有机质含量偏低;土壤中的速效氮、速效磷和速效钾与适量值相比分别缺乏87.09%、41.94%和38.71%,而磷、钾处于高量范围内的分别为25.81%、22.58%。因此,氮肥施用不足,而不同桔园间磷、钾肥施用差异较大,施用不足与过量施肥并存,是赣南脐橙园施肥中值得关注的问题。Top soil （0 -30 cm） samples from 31 navel orange orchards in Southern Jiangxi were analyzed. The results showed that the soil pH was suitable in 74.19% orchards for navel orange growth, soil organic matter （OM） was low in 54.84 % orchards, and available macronutrients N , P and K were 87.09%, 41.94% and 38.71% of the corresponding suitable levels, respectively. The orchards with P and K contents in higher range were 25.81%, 22.58%, respectively. Therefore, the problems in fertilizer application in sourthern Jiangxi navel orange orchards were insufficient N application, considerably different in P and K application, and insufficient or excessive fertilizer application.

关 键 词：赣南 脐橙 土壤 养分含量 

分 类 号：S666.4[农业科学—果树学]