施肥对采煤塌陷区复垦土壤理化性质和磷分级的影响  

Influence of Fertilization on Physicochemical Properties and Phosphorus Fractions of Reclaimed Soil in Coal-mining Subsided Land

作　　者：冯鹏艳 梁利宝[1] FENG Pengyan;LIANG Libao(College of Resource and Environment,Shanxi Agricultural University,Taigu,Shanxi 030801)

机构地区：[1]山西农业大学资源环境学院,山西太谷030801

出　　处：《水土保持学报》2018年第5期229-233,共5页Journal of Soil and Water Conservation

基　　金：山西省土壤环境与养分资源重点实验室开放基金项目(2014003);山西农业大学博士科研启动基金项目(812179)

摘　　要：以山西省晋城市采煤塌陷区复垦土壤为研究对象,连续3年定位施肥研究施用有机肥(M)、无机肥(NPK)、有机肥+无机肥(NPK+M)对土壤理化性状、土壤磷分级的影响。结果表明:试验结束后,不同施肥处理土壤的pH、容重、全氮、全磷含量差异均不显著;单施有机肥处理的有机质含量显著高于单施化肥处理;有机肥+无机肥处理土壤速效磷含量高于其余处理,但处理间差异不显著。有机肥+无机肥处理能够明显提高土壤无机磷组分Ca_8-P含量;不同施肥处理均显著提高了Fe-P,处理间差异不显著;各处理的O-P、Ca_(10)-P增幅不明显;对照处理的不同无机磷组分含量总体保持下降趋势,其中Ca_8-P、Fe-P降幅较为明显。有机肥处理对活性、中活性组分,有机肥+无机肥处理对活性、中稳性有机磷效果明显,无机肥对有机磷组分效果不显著。相关性分析表明,Ca_2-P、Ca_8-P、Al-P、Fe-P、中活性、中稳性有机磷与速效磷均呈显著正相关性,Ca_8-P、中活性有机磷与速效磷极显著相关。Taking reclaimed soil of the subsided land resulting from coal-mining as the research object in Jincheng,Shanxi province,the experiment studied the effects of organic manure(M),inorganic fertilizer(NPK)and organic+inorganic fertilizer(NPK+M)application for 3 years on soil physical and chemical properties,phosphorus fractions.The results showed that:there was no significant difference in soil pH,bulk density,total nitrogen and total phosphorus among different fertilization treatments,and the content of organic matter in M treatment was significantly higher than that of single fertilizer treatment,and the content of soil available phosphorus in NPK+M treatment was higher than that in the rest treatments,but the difference was not significant.NPK+M treatment could significantly increase Ca 8-P content of the soil inorganic phosphorus fractions,and all fertilization treatments significantly improved the content of Fe-P,while the difference was not significant.The growth of O-P and Ca 10-P was not obvious in all treatments.The contents of different inorganic phosphorus components in the control treatment generally declined,and Ca 8-P and Fe-P declined more obviously.M treatment had significant effect on active and medium active organophosphorus,NPK+M treatment impacted active and medium stable organophosphorus more obviously,and NPK treatment had no significant effect on organophosphorus.The correlation analysis showed that Ca 2-P,Ca 8-P,Al-P,Fe-P,medium activity,medium stable organophosphorus and available phosphorus had significant positive correlation,and Ca 8-P,medium active organophosphorus and available phosphorus were very significantly correlated.

关 键 词：复垦土壤 培肥 无机磷 有机磷 磷分级 

分 类 号：S144.1[农业科学—肥料学]