Research of Eggplant Economical Irrigation Scheduling With Drip Irrigation Under Plastic Mulch in Greenhouse(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Research of Eggplant Economical Irrigation Scheduling With Drip Irrigation Under Plastic Mulch in Greenhouse

Author(s):: WANG Yangren1; WANG Shaosheng2; ZHENG Zhiwei1; ZHAO Baoyong2; （1.Department of Hydraulic Engineering，Tianjin Agricultural University，Tianjin 300384；2.Department of Farmland and Trrigation,Tianjin Water Conservation Bureau，Tianjin 300074）

Keywords:: greenhouse; drip irrigation under mulch; eggplant; economical irrigation schedule; irrigation low limit

Abstract:: Taking eggplant as material，the temperature，water stress index and dry matter transformation factor for the eggplant growth model parameter in greenhouse were determined with drip irrigation under plastic mulch.The economic irrigation schedule and irrigation low limit were studied.The results showed that the economic irrigation schedule could be significantly increased yield and income more than practical irrigation as 4.22 t?hm-2 and 13 670 RMB?hm-2，and the irrigation water consumption was saved by 8.235% for the eggplant；the average value of soil water content （depth of 0-60 cm）before irrigation was used as the irrigation low limit for crop economical irrigation，and the value was 0.239，relative water content was 85.3％，and the coefficient of variation was 0.245％for the greenhouse eggplant.Ecominc benefit per unit area was the best by the value(0.239)of the irrigation low limit for crop economical irrigation. Keywords:greenhouse；drip irrigation under mulch；eggplant；economical irrigation schedule；irrigation low limit

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Last Update: 2016-10-13