Effect of Trough Volume on Root Absorption，Fruit Yield and Quality of Elevated#br#
Cultured Tomato in Solar Greenhouse
ZHANG Hai 1，LI Dong 1，HU Ying-ying 1，WEI Min 1，2* ，YANG Feng-juan 1，SHI Qing-hua 1，2，WANG Xiu-feng 1，3
1 College of Horticulture Science and Engineering，Shandong Agricultural University，Tai’an 271018，Shandong，
China；2 Scientific Observing and Experimental Station of Environment Controlled Agricultural Engineering in Huang-
Huai-Hai Region，Ministry of Agriculture，Tai’an 271018，Shandong，China；3 Collaborative Innovation Center of
Protected Vegetable Suround Bohai Gulfregion，Shenyang 110866，Liaoning，China
The effects of cultured trough size（transection width×depth is 20 cm×10 cm，20 cm×15 cm，20
cm×20 cm）and pot volume（diameter 12 cm，height 10 cm，volume 1 L）on plant growth and development，water
and fertilizer uptake and use，yields and quality of elevated cultivation of tomato（Lycopersicon esculentum Mill.）
were studied with the elevated closed-cycle cultivation system．The results showed that compared with pot culture，
trough culture promoted tomato growth，increased production，but the flowering and harvest times were delayed，
the fruit quality and water and nutrients use efficiency were decreased．There were no obvious difference in tomato
yield between different cultured trough sizes，but the plant growth and dry matter accumulation increased，while the
water and nutrients use efficiency and fruit quality were declined．Comprehensively considering the indexes of yield，
quality，water and nutrients use efficiency，20 cm×10 cm was an ideal trough size desired by tomato cultivation．
