Abstract
The underground water pipe system for energy-saving control of temperature of nutrient solution in the soil-less culture was newly proposed, and its performance was examined in the soil-less culture of Welsh onion (Allium fistulosum L. cv. Koutou). The system consists of a large-sized pipe filled with water under the ground (the underground water pipe), and a unit for circulating the nutrient solution between the cultivation bed and the underground water pipe. The temperature condition in the underground water pipe 1.5 m below the ground surface is stable as compared with that in greenhouses which excessively high in summer and low in winter. During the circulation, the heat can be exchanged between the nutrient solution and the water stored in the underground water pipe. The excessive heat loaded in the nutrient solution in the greenhouse during the hot sunny daytime was effectively removed into the water stored in the underground water pipe, and this enabled the normal growth of plants without serious stress by extremely high temperature in summer. Furthermore, this circulation warmed the nutrient solution excessively chilled in cold winter nights. Therefore, the underground water pipe system proposed is applicable to the energy-saving control of temperature of the nutrient solution in the soil-less culture for year round production of vegetables.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the International Workshop on Greenhouse Environmental Control and Crop Production in Semi-Arid Regions |
| Pages | 185-192 |
| Number of pages | 8 |
| Volume | 797 |
| Publication status | Published - 2008 |
| Event | International Workshop on Greenhouse Environmental Control and Crop Production in Semi-Arid Regions - Tucson, AZ, United States Duration: Oct 20 2008 → Oct 24 2008 |
Publication series
| Name | Acta Horticulturae |
|---|---|
| Volume | 797 |
| ISSN (Print) | 05677572 |
Other
| Other | International Workshop on Greenhouse Environmental Control and Crop Production in Semi-Arid Regions |
|---|---|
| Country | United States |
| City | Tucson, AZ |
| Period | 10/20/08 → 10/24/08 |
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All Science Journal Classification (ASJC) codes
- Horticulture
Cite this
Energy-saving temperature control of nutrient solution in soil-less culture using an underground water pipe. / Hidaka, K.; Masaharu, Kitano; Sago, Y.; Yasutake, Daisuke; Miyauchi, K.; Affan F.F., M.; Ochi, M.; Imai, S.
Proceedings of the International Workshop on Greenhouse Environmental Control and Crop Production in Semi-Arid Regions. Vol. 797 2008. p. 185-192 (Acta Horticulturae; Vol. 797).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
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TY - GEN
T1 - Energy-saving temperature control of nutrient solution in soil-less culture using an underground water pipe
AU - Hidaka, K.
AU - Masaharu, Kitano
AU - Sago, Y.
AU - Yasutake, Daisuke
AU - Miyauchi, K.
AU - Affan F.F., M.
AU - Ochi, M.
AU - Imai, S.
PY - 2008
Y1 - 2008
N2 - The underground water pipe system for energy-saving control of temperature of nutrient solution in the soil-less culture was newly proposed, and its performance was examined in the soil-less culture of Welsh onion (Allium fistulosum L. cv. Koutou). The system consists of a large-sized pipe filled with water under the ground (the underground water pipe), and a unit for circulating the nutrient solution between the cultivation bed and the underground water pipe. The temperature condition in the underground water pipe 1.5 m below the ground surface is stable as compared with that in greenhouses which excessively high in summer and low in winter. During the circulation, the heat can be exchanged between the nutrient solution and the water stored in the underground water pipe. The excessive heat loaded in the nutrient solution in the greenhouse during the hot sunny daytime was effectively removed into the water stored in the underground water pipe, and this enabled the normal growth of plants without serious stress by extremely high temperature in summer. Furthermore, this circulation warmed the nutrient solution excessively chilled in cold winter nights. Therefore, the underground water pipe system proposed is applicable to the energy-saving control of temperature of the nutrient solution in the soil-less culture for year round production of vegetables.
AB - The underground water pipe system for energy-saving control of temperature of nutrient solution in the soil-less culture was newly proposed, and its performance was examined in the soil-less culture of Welsh onion (Allium fistulosum L. cv. Koutou). The system consists of a large-sized pipe filled with water under the ground (the underground water pipe), and a unit for circulating the nutrient solution between the cultivation bed and the underground water pipe. The temperature condition in the underground water pipe 1.5 m below the ground surface is stable as compared with that in greenhouses which excessively high in summer and low in winter. During the circulation, the heat can be exchanged between the nutrient solution and the water stored in the underground water pipe. The excessive heat loaded in the nutrient solution in the greenhouse during the hot sunny daytime was effectively removed into the water stored in the underground water pipe, and this enabled the normal growth of plants without serious stress by extremely high temperature in summer. Furthermore, this circulation warmed the nutrient solution excessively chilled in cold winter nights. Therefore, the underground water pipe system proposed is applicable to the energy-saving control of temperature of the nutrient solution in the soil-less culture for year round production of vegetables.
UR - http://www.scopus.com/inward/record.url?scp=58049220209&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=58049220209&partnerID=8YFLogxK
M3 - Conference contribution
SN - 9789066055810
VL - 797
T3 - Acta Horticulturae
SP - 185
EP - 192
BT - Proceedings of the International Workshop on Greenhouse Environmental Control and Crop Production in Semi-Arid Regions
ER -