不同肥料对油茶林土壤及叶片磷素状况的影响  

Effects of different fertilizer treatments on phosphorus status of soils and leaves in Camellia oleifera forest

作　　者：王华[1] 牛德奎[1] 胡冬南[2] 郭晓敏[2] 

机构地区：[1]江西农业大学国土与资源环境学院,江西南昌330045 [2]江西农业大学园林与艺术学院,江西南昌330045

出　　处：《经济林研究》2014年第4期52-57,共6页Non-wood Forest Research

基　　金：国家自然科学基金项目(31260194);国际植物营养研究所(IPNI)项目(Jiangxi-29);中央财政林业科技成果推广示范项目(〔2011〕TK 056);江西农业大学自然科学创新发展基金课题(09004090)

摘　　要：为给油茶种植合理施肥提供理论依据和科学指导,以‘赣无’油茶无性系为材料,分别施用油茶专用肥(ZYF)、生物有机肥(YJF)、复合肥(FHF)和不施肥(CK),研究不同类型肥料对油茶林土壤中全磷、有效磷、土壤微生物量磷以及叶片全磷含量季节变化的影响。结果显示:ZYF、FHF和YJF处理油茶林土壤中与CK相比,全磷年平均量依次增加46.36%、20.11%、11.29%。不同施肥处理土壤全磷含量季节变化虽不完全一致,但均在秋季含量最高,夏季含量最低。ZYF、FHF和YJF处理油茶林土壤中有效磷含量与CK相比年平均量依次增加321.55%、162.29%、133.45%。随着季节变化,CK、YJF和FHF处理中土壤有效磷含量均为从春季到冬季呈递增趋势,ZYF处理中按照土壤有效磷含量由高到低排列依次为:秋季、冬季、夏季、春季。ZYF、YJF和FHF与CK相比土壤微生物量磷年平均量分别增加197.73%、163.78%和135.60%。不同处理土壤微生物量磷含量季节变化明显,按其含量由高到低排列均为:冬季、秋季、夏季、春季;ZYF、YJF和FHF与CK相比油茶叶片全磷年平均量依次增加27.24%、26.66%、18.89%。不同处理油茶叶片全磷含量季节动态变化较为复杂。由相关分析结果得出,不同肥料处理油茶林土壤全磷含量、有效磷含量、土壤微生物量磷含量以及油茶叶片全磷含量之间均存在显著相关关系。In order to provide a theoretical basis and a scientific guidance for reasonable fertilization of Camellia oleifera, taking ＇Ganwu＇ Clone of C. oleifera as materials, four fertilizer treatments were set, which were C. oleifera specialty fertilizer （ZYF）, bio-organic fertilizer （YJF）, compound fertilizer （FHF） and no fertilizer （CK）. The purpose was to reveal effects of different fertilizer treatments on contents of total P, available P and microbial biomass P in C. oleifera forest soil and total P content in leaves. The results showed that compared with CK, the contents of soil total P in ZYF, FHF and YJF treatments were respectively increased by 46.36%, 20.11% and 11.29%. In different fertilizer treatments, seasonal variations of soil total P content were not consistent, but they all reach the highest values in autumn and the lowest values in summer. Compared with CK, the annual average contents of available P in ZYF, FHF and YJF treatments were respectively increased by 321.55%, 162.29% and 133.45%. With seasonal variation, all contents of soil available P showed the increasing trends from spring to winter in CK, YJF and FHF treatments, and the seasons based on soil available P content in ZYF treatment from high to low were autumn, winter, summer, spring, respectively. Compared with CK, annual average contents of soil microbial biomass P in ZYF, YJF and FHF treatments were respectively by 197.73%, 163.78% and 135.60%. Changes of soil microbial biomass P contents in different treatments were obvious with seasonal variation, and the seasons based on the contents from high to low were winter, autumn, summer, spring, respectively. Compared with CK, annual average content of total P in leaves under ZYF, YJF and FHF treatments were increased by 27.24%, 26.66% and 18.89% respectively. Changes of total P contents in leaves were complicated in four seasons. The results of correlative analysis showed that there were significant correlation between soil total P content, soil available P content, soil m

关 键 词：油茶 全磷 有效磷 土壤微生物量磷 

分 类 号：S606.1[农业科学—园艺学] S794.4