轮作模式下灌水量对设施连作土壤理化性状的影响  

Effects of Irrigation Amount on Physical and Chemical Properties of Continuous Cropping Soil under Crop Rotation Mode

作　　者：孙凯宁[1] 王克安[1] 杨宁[1] 吕晓惠 柴秀乾[1] 

机构地区：[1]山东省农业科学院蔬菜花卉研究所/国家蔬菜改良中心山东分中心/山东省设施蔬菜生物学重点实验室,山东济南250100

出　　处：《山东农业科学》2015年第11期72-74,共3页Shandong Agricultural Sciences

基　　金：山东省科技发展计划项目(2013GNC11028);山东省农业科学院科技创新重点项目子课题(2014CXZ01-2);山东省2013年度农业重大应用技术创新资金项目;山东省现代农业产业技术体系蔬菜创新团队项目(SDAIT-02-022)

摘　　要：选取连作9年的日光温室,采用田间区组设计,在上茬黄瓜拉秧后至下茬水稻种植前设置不同灌水次数:1次(T1)、3次(T2)、5次(T3)和不灌水(CK)处理,研究了在稻菜轮作模式下,水稻种植前不同灌水量对设施连作土壤理化性状的影响。结果表明,在灌水2个月后,与灌水1次、灌水3次相比,灌水5次可以明显降低土壤p H和电导率;灌水5次的全氮、有效磷和速效钾较CK分别降低了11.40%、6.59%和34.80%;灌水3次和5次两个处理的土壤有效铜和有效铁均比灌水前有所增加,而对土壤有效锌并无明显影响。In order to study the effects of different irrigation amount on the physical and chemical properties of continuous cropping soil under the rice- cucumber rotation mode,with greenhouse continuous cropping for 9 years,four treatments of different irrigation times（ irrigating 1 time as T1,3 times as T2,5 times as T3 and non- irrigation as CK） were set by field block design during the period of cucumber harvest to rice planting. The results showed that after irrigating for 2 months,compared with T1 and T2,T3 treatment could significantly reduce soil p H value and electrical conductivity. Compared with CK,the total nitrogen,available phosphorus and available potassium of T3 treatment reduced by 11. 40%,6. 59% and 34. 80% respectively.The soil available Cu and available Fe of T2 and T3 treatment both increased than before irrigation,while the available Zn was not significantly affected.

关 键 词：轮作 养分 微量元素 灌水量 

分 类 号：S153[农业科学—土壤学]