不同水肥供应水平对设施无土栽培草莓生长及水分利用率的影响  

Effects of Different Water and Fertilizer Supply Levels on Growth and Water Use Efficiency of Strawberry under Soilless Cultivation in Greenhouse

作　　者：杨振华[1] 王锋[1] 张迪[1] 张雯 YANG Zhenhua;WANG Feng;ZHANG Di;ZHANG Wen(Yangling Vocational and Technical College,Yangling Shaanxi 712100,China)

机构地区：[1]杨凌职业技术学院,陕西杨凌712100

出　　处：《农业工程》2021年第4期128-131,共4页AGRICULTURAL ENGINEERING

基　　金：陕西省科学技术重点研发计划一般项目(2020NY-051);杨凌职业技术学院校企合作研发项目(A2019050);杨凌职业技术学院草莓产业发展示范基地项目。

摘　　要：为了探索适宜陕西关中气候特点的立体草莓栽培苗期水肥供给最佳浓度组合,以"A"字型3层槽装填无土栽培基质(草炭∶蛭石∶无机盐=1∶2∶1)为栽培体系,以2个基质含水量(W_(1)、W_(2)),3个水溶肥浓度(F1、F2、F3)组成的W_(1)F1、W_(1)F2、W_(1)F3、W_(2)F1、W_(2)F2、W_(2)F3及CK (清水,基质水分含量100%)处理,研究在草莓立体栽培槽架中,不同梯度处理水肥供给对植株生长、干物质积累及水分利用率的影响。研究结果表明,W_(1)F2(基质含水量30%,水溶肥浓度0.1%)在保障植株正常营养生长情况下,未造成植株徒长,地下部分干物质积累较多,根冠比大于高水肥灌溉模式。In order to explore the best concentration combination of water and fertilizer supply for three-dimensional strawberry cultivation in Guanzhong,Shaanxi Province,soilless culture medium (peat∶vermiculite∶inorganic salt=1∶2∶1) was used as culture system,W_(1)F1、W_(1)F2、W_(1)F3、W_(2)F1、W_(2)F2、W_(2)F3 and CK (clear water,100% water content of substrate) were treated with two water contents (W_(1),W_(2)) and three water-soluble fertilizer concentrations (F1,F2,F3),effects of different gradient treatment on plant growth,dry matter accumulation and water utilization rate were studied in the three-dimensional cultivation of strawberry.Results showed that W_(1)F2(30% water content in the substrate and 0.1% water-soluble fertilizer concentration) did not cause excessive plant growth,accumulated more dry matter in the underground part,and root shoot ratio was higher than that of high water and fertilizer irrigation mode.

关 键 词：草莓 无土栽培 水分利用率 设施农业 

分 类 号：S668.4[农业科学—果树学]