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| Effects of Different Trace Irrigation Pipe Depths on Eggplant Growth，Yield and Water Utilization Efficiency in Solar Greenhouse |
| YANG Ming-yu1，AN Shun-wei2，ZHOU Ji-hua2，SHI Wen-xue2，XIAO Chang-kun1，HUANG Hui-ling1 |
| 1Beijing Agro-technical Extension Station，Beijing 100029，China|2Agro-technical Extension Centre of Miyun District，Beijing 101500，China |
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Abstract Taking‘Jingqie No.?1’as material，the effects of different trace irrigation pipe depths on irrigation quantities，water consumption，yield and fruit quality of spring eggplant（Solanum melongena L.）in solar greenhouse were studied．The results showed that different trace irrigation pipe depths could promote plant growth and increase yield．Compared with the surface casing treatment，when the trace irrigation pipe depth were 10 cm，the yield of eggplant increased by 14.7%．While，with the increasing of trace irrigation pipe depth，the irrigation quantities and water consumption reduced，but the water use efficiency of the trace irrigation pipe depth 10 cm treatment was highest，which reached 23.5%．Considering various factors，among all the trace irrigation pipe depths，the highest eggplant yield and water use efficiency and lower water consumption were appeared in 10 cm depth．Therefore，trace irrigation pipe depth 10 cm was the appropriate trace irrigation pipe depth for spring eggplant production in solar greenhouse．
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Received: 26 April 2012
Published: 18 June 2012
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