Advanced Search
Irrigation Science
Heller, H., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization (ARO), P.O. Box 6, Bet Dagan, Israel
Bar-Tal, A., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization (ARO), P.O. Box 6, Bet Dagan, Israel
Assouline, S., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization (ARO), P.O. Box 6, Bet Dagan, Israel
Narkis, K., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization (ARO), P.O. Box 6, Bet Dagan, Israel
Suryano, S., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization (ARO), P.O. Box 6, Bet Dagan, Israel
De La Forge, A., UFS - Union Française des Semenciers, 17 rue du Louvre, Paris, France
Barak, M., Institute of Agricultural Engineering, Agricultural Research Organization (ARO), P.O. Box 6, Bet Dagan, Israel
Alon, H., MOP Darom, Research and Development Farm, Habesor, Western Negev, Israel
Bruner, M., MOP Darom, Research and Development Farm, Habesor, Western Negev, Israel
Cohen, S., MOP Darom, Research and Development Farm, Habesor, Western Negev, Israel
Tsohar, D., MOP Darom, Research and Development Farm, Habesor, Western Negev, Israel
Appropriate geometries and depths of containers are essential in obtaining suitable available water and temperature in the root zone of containerized grown plants. The objectives of the present study were to examine the effect of the geometry of a growth container with a given volume and irrigation frequency, on water content and temperature of the growing medium and on water uptake, yield and quality of lettuce (Lactuca sativa L.) as a model plant. Two experiments, in the spring and fall, were conducted in a greenhouse. Plants were grown in a volume of 4 L per plant of medium mixture of 0-8 mm tuff (90 %) with compost (10 %). Treatments included three container heights (10, 20 and 30 cm) and two irrigation frequencies (4-6 and 12-18 applications per day and 2 night applications for both). Lettuce head fresh weight was lower in the spring than in the fall and was not significantly affected by container geometry or irrigation frequency. However, the number of tip burn damaged leaves per plant increased significantly with container height, especially for the high irrigation frequency treatments. Container geometry had an effect on the water and temperature regimes. Water content values in tall and narrow containers were lower than those in short and wide containers that had an equal volume of growth medium per unit length. Higher medium temperatures and daily fluctuations were observed in the tall containers. The calculated evapotranspiration rate was higher in the tall containers, and a stronger effect on evapotranspiration was obtained with high irrigation frequency. © Springer-Verlag Berlin Heidelberg 2014.
Powered by ClearMash Solutions Ltd -
Volcani treasures
About
Terms of use
The effects of container geometry on water and heat regimes in soilless culture: Lettuce as a case study
33
Heller, H., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization (ARO), P.O. Box 6, Bet Dagan, Israel
Bar-Tal, A., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization (ARO), P.O. Box 6, Bet Dagan, Israel
Assouline, S., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization (ARO), P.O. Box 6, Bet Dagan, Israel
Narkis, K., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization (ARO), P.O. Box 6, Bet Dagan, Israel
Suryano, S., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization (ARO), P.O. Box 6, Bet Dagan, Israel
De La Forge, A., UFS - Union Française des Semenciers, 17 rue du Louvre, Paris, France
Barak, M., Institute of Agricultural Engineering, Agricultural Research Organization (ARO), P.O. Box 6, Bet Dagan, Israel
Alon, H., MOP Darom, Research and Development Farm, Habesor, Western Negev, Israel
Bruner, M., MOP Darom, Research and Development Farm, Habesor, Western Negev, Israel
Cohen, S., MOP Darom, Research and Development Farm, Habesor, Western Negev, Israel
Tsohar, D., MOP Darom, Research and Development Farm, Habesor, Western Negev, Israel
The effects of container geometry on water and heat regimes in soilless culture: Lettuce as a case study
Appropriate geometries and depths of containers are essential in obtaining suitable available water and temperature in the root zone of containerized grown plants. The objectives of the present study were to examine the effect of the geometry of a growth container with a given volume and irrigation frequency, on water content and temperature of the growing medium and on water uptake, yield and quality of lettuce (Lactuca sativa L.) as a model plant. Two experiments, in the spring and fall, were conducted in a greenhouse. Plants were grown in a volume of 4 L per plant of medium mixture of 0-8 mm tuff (90 %) with compost (10 %). Treatments included three container heights (10, 20 and 30 cm) and two irrigation frequencies (4-6 and 12-18 applications per day and 2 night applications for both). Lettuce head fresh weight was lower in the spring than in the fall and was not significantly affected by container geometry or irrigation frequency. However, the number of tip burn damaged leaves per plant increased significantly with container height, especially for the high irrigation frequency treatments. Container geometry had an effect on the water and temperature regimes. Water content values in tall and narrow containers were lower than those in short and wide containers that had an equal volume of growth medium per unit length. Higher medium temperatures and daily fluctuations were observed in the tall containers. The calculated evapotranspiration rate was higher in the tall containers, and a stronger effect on evapotranspiration was obtained with high irrigation frequency. © Springer-Verlag Berlin Heidelberg 2014.
Scientific Publication
You may also be interested in