Effect of Plant Growth and Production of Tomato on the Water Content Control in Rockwool Culture
2018
Moon, D.G., National Institute of Horticultural and Herbal Science, Rural Development Administration, Jeju, Republic of Korea | Kim, S.H., National Institute of Horticultural and Herbal Science, Rural Development Administration, Jeju, Republic of Korea | Cho, M.W., National Institute of Horticultural and Herbal Science, Rural Development Administration, Jeju, Republic of Korea | Yu, I.H., National Institute of Horticultural and Herbal Science, Rural Development Administration, Jeju, Republic of Korea | Ryu, H.R., National Institute of Horticultural and Herbal Science, Rural Development Administration, Jeju, Republic of Korea | Choi, K.H., National Institute of Horticultural and Herbal Science, Rural Development Administration, Jeju, Republic of Korea | Kwon, Y.H., National Institute of Horticultural and Herbal Science, Rural Development Administration, Jeju, Republic of Korea | Lee, S.J., National Institute of Horticultural and Herbal Science, Rural Development Administration, Jeju, Republic of Korea
This study was carried out to investigate the effect of plant growth and production of tomato (Lycopersicon Esculentum Mill cv. Tefunis) according to the water content of non-recycled rockwool culture in high-rise tomato greenhouse. Daily irrigation amount was 3.8 times higher in the irrigation control by Integrated Solar Radiation (ISR) than in the Frequency Domain Reflectometry (FDR) sensor. Water content of ISR and FDR was 90-95 and 60-65%, respectively. Plant height and weight of tomato fruit was 1.2-1.9 times longer and 1.2-2.0 times heavier in the ISR than in the FDR sensor, respectively. No significantly differed to sugar content of tomato by treatments. Marketable fruits were the higher 1.3 times in the ISR compared with the FDR sensor. Cracking percentage in the ISR was also the higher 2.0 times compared with FDR sensor. Therefore, Irrigation control by ISR was appropriate to improve of plant growth and production of tomato with non-recycled rockwool culture in greenhouse during long-term cultivation.
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