红黄壤茶园不同培肥模式的土壤理化效应  

Effect of Different Fertilization Patterns on Physicochemical Properties of Red-Yellow Soil in Tea Garden

作　　者：王利民[1] 林新坚[1] 黄东风[1] 李卫华[1] 邱孝煊[1] 

机构地区：[1]福建省农业科学院,福州350013

出　　处：《东北林业大学学报》2012年第1期54-57,65,共5页Journal of Northeast Forestry University

基　　金：福建省农业科学院博士科研启动基金(2010BS-7);福建省自然科学基金项目(2011J05057)

摘　　要：通过长期定位试验,研究闽东地区红黄壤茶园不施肥(CK)、全量化肥(C)、(半量化肥+半量有机肥)(C1/2O1/2)、全量有机肥(O)、(全量化肥+豆科绿肥)(CL)及(半量化肥+半量有机肥+豆科绿肥)(C1/2O1/2L)等6种不同培肥模式下土壤理化性质的动态变化。结果表明:与CK模式相比,其他模式均能一定程度上改良土壤理化性状。其中,处理O和C1/2O1/2L的改良效益相对较佳,砂粒(0.05 mm<D≤2.0 mm)含量分别比CK降低了15.05%、20.44%,粉粒(0.002 mm<D≤0.05 mm)含量分别增加了24.33%、33.21%,黏粒(D<0.002 mm)含量分别增加了17.98%、24.42%;含水量分别增加了25.50%、40.79%,有机质质量分数分别增加了227.84%、129.26%;阳离子交换量(CEC)分别增加了44.48%、29.62%;有机质、全N、水解N、有效P、速效K质量分数,CEC,土壤含水量与极粗砂粒、粗砂粒和中砂粒含量呈显著负相关,而与粉砂粒和黏粒含量均呈正相关(R0.05=0.468,n=18)。这表明O或C1/2O1/2L培肥模式有利于改良土壤结构,改善土壤水肥状况。The aim of this study was to investigate the dynamic change in physicoehemical properties of red-yellow soil in a tea garden in east Fujian by a long-term fertilizer trail, which consisted of six treatments ： no fertilization （ CK）, chemical fertilizer only （C）, half dose of chemical fertilizer＋half dose of organic manure （ C1/2 O1/2 ）, organic fertilizer only （ O）, chemical fertilizer＋leguminous green manure （ CL）, and half dose of chemical fertilizer＋half dose of organic manure＋leguminous green manure （C1/2O1/2 L）. Results indicated that, compared with the CK, different fertilization patterns could improve the physicochemical properties of the soil to a certain extent. The silt （0.002 mm〈diameter≤0.05 mm） content in O and ClnOi/2L treatments increased by 24.33% and 33.21%, the clay （diameter〈0.002 ram） content by 17.98% and 24.42%, water content by 25.50% and 40.79%, organic matter content by 227.84% and 129.26%, cation exchange capacity （CEC） by44.d8% and 29.62%, whereas the sand （0.05 mm〈diameter≤2.0mm） content decreased by 15.05% and 20.44%, respectively. The contents of organic matter, total nitrogen, hydrolysable nitrogen, available phosphorus and available potassium, CEC, and soil water content were highly negatively correlated with contents of very coarse, coarse and medium sand, and highly positively correlated with contents of silt and clay （ R0. o5 = 0. 468, n = 18）. It is concluded that soil fertility and soil structure can be improved under O and C1/2O1/2L fertilization patterns.

关 键 词：培肥模式 红黄壤 物理性质 化学性质 

分 类 号：S147.2[农业科学—肥料学]