赣东油茶成林土壤养分状况及土壤限制因子研究  

Nutrients and Limiting Factors of Soil in Camellia oleifera Fields in East Jiangxi

作　　者：朱丛飞 罗汉东 李林海 刘少敏[1,2] 王建伟 胡冬南 牛德奎[1] 郭晓敏 李碧霞[4] ZHU Cong-fei;LUO Han-dong;LI Lin-hai;LIU Shao-min;WANG Jian-wei;HU Dong-nan;NIU De-kui;GUO Xiao-min;LI Bi-xia(College of Forestry, Jiangxi Agricultural University, Nanchang, Jiangxi 330045, China;Key Laboratory of Forest Cultivation of Jiangxi, Nanchang, Jiangxi 330045, China;Guixi City, Jiangxi Province State owned Shuangzhen Forest Farm, Guixi, Jiangxi 335414, China;Jiangxi Chunyuan Green Food Co. Ltd. , Shangrao, Jiangxi 334000, China)

机构地区：[1]江西农业大学林学院,江西南昌330045 [2]江西省森林培育重点实验室,江西南昌330045 [3]江西省贵溪市国营双圳林场,江西贵溪335414 [4]江西春源绿色食品有限公司,江西上饶334000

出　　处：《福建农业学报》2018年第4期418-423,共6页Fujian Journal of Agricultural Sciences

基　　金：国家自然科学基金项目(31760223);国际植物营养研究所(IPNI)项目(Jiangxi-29);国家科技支撑计划项目(2012BAD14B14);国家自然科学青年基金项目(41501317);油茶成熟林钾;磷养分管理技术(CYKJ01号)

摘　　要：为探究江西省玉山县油茶林的土壤养分状况,运用土壤养分系统研究法(ASI法),以高粱为指示作物,对玉山县油茶林进行土壤养分测定及评估,分析土壤养分状况及土壤限制因子,为油茶合理施肥提供依据。结果表明:玉山县油茶林地土壤养分含量低,有机质含量偏低,其中P、K、Ca、Mg的含量均远低于临界值。Cu、B、Zn是潜在影响因子。而S、Fe、Mn的含量普遍较为丰富。盆栽试验结果显示:不添加P、K、Ca、Mg的盆栽作物,两试验地分别减产30.86%~42.14%、44.89%~52.51%、73.91%~84.49%、13.42%~18.89%。提示江西省玉山县油茶林在进行养分管理时,需施用大量元素P、K,同时也要平衡添加Ca、Mg微量元素。The soil fertility of Camellia oleiferafields in Yushan County,Jiangxi Province was analyzed using ASI method.Sorghum was applied as the indicator crop to determine and evaluate the nutrient contents and limiting factors of the soil to provide information for improving the tea oil productivity of C.oleifera.The results showed that the soil was low on nutrients and organic matters.The contents of P,K,Ca and Mg were deficient and considerably below the minimum thresholds,while Cu,B and Zn marginally adequate,for the plant growth.On the other hand,S,Fe and Mn were generally abundant.A potting test for two sites showed that,without added P,K,Ca and Mg,the yield of sorghum plants reduced by 30.86%-42.14%,44.89%-52.51%,73.91%-84.49%,13.42%-18.89%,respectively.To properly fertilize the land,a balanced addition of Ca and Mg as well as P and K was recommended.

关 键 词：油茶林 土壤养分系统研究法 土壤养分 限制因子 江西省玉山县 

分 类 号：S714.8[农业科学—林学]