包膜复合肥料对芹菜土壤养分含量变化的影响  

Study on Effects of Coated Compound Fertilizers on Nutrient Content of Soils

作　　者：王小波[1] 王艳[2] 桂枝[1] 卢树昌[1] 苏霄倩[3] 

机构地区：[1]天津农学院农学系,天津300384 [2]山西财经大学,山西太原03006 [3]山西农业大学资源与环境学院,山西太谷030801

出　　处：《安徽农业科学》2009年第8期3615-3616,共2页Journal of Anhui Agricultural Sciences

基　　金：天津科技攻关计划培育项目(06YFGPNC03100);天津农学院科学研究发展基金计划(2008N013);山西省科技攻关计划培育项目(033005)

摘　　要：[目的]研究包膜复合肥营养元素在土壤中的释放特性。[方法]通过盆栽试验研究包膜复合肥对土壤有效养分供给变化的影响。[结果]结果表明，包膜肥料使土壤中NO3^--N舍量的峰值出现时间延迟了15～25d，且在第75天时施用自制包膜复合肥1（CRF-1）较复合肥（CK1）高150％；有效磷含量变化表现为先升后降或先降再升的过程；包膜肥处理土壤有效钾的下降速率低于对照，且在第75天时施用自制包膜复合肥4（CRF-4）最高，比复合肥高3．4％。[结论]该研究为包膜复合肥的研究和应用提供科学依据。[ Objective ] The research aimed to study release characteristics of coated compound fertilizers in soil. [ Method ] A pot experiment was conducted to investigate the changes of soil nutrition applied coated compound fertilizers. [Result]The result showed that the peak value of NO3 ^- -N in soils was 15 -25 d late due to the coated compound fertilizers. For the treatment of CRF-1, peak value of NO3^- -N was 150% above the CKI. Available phosphorus showed the trend of up and down or down and up. Descent speed of available potassium of treated soils was lower than CK. For the treatment of CRF-4, the content of available potassium was the highest at the 75 d, higher 3.4% than CK1. [ Conclusion ] This research will provide scientific basis for study and utilization of coated compound fertilizers.

关 键 词：包膜复合肥 芹菜 土壤养分 

分 类 号：S144.1[农业科学—肥料学]