Auflistung nach Autor "Savvas, D."
Anzeige der Dokumente 1-14 von 14
-
Availability of macrocations in perlite and pumice as influenced by the application of nutrient solutions having different cation concentration ratios
Gizas, G.; Savvas, D.; Mitsios, I. (2001)Unused pumice and perlite substrates were placed in 4 litre pots and washed (2 litres per pot) with 2 nutrient solutions differing in the K: Ca: Mg ratio (A = 2.8:3:1, B = 5.6:3:1; ratios on equivalent basis). After ... -
Development and evaluation of a DSS for drainage management in semi-closed hydroponic systems
Katsoulas, N.; Kittas, C.; Bartzanas, T.; Savvas, D. (2014)The recycling of greenhouse effluents in soilless cultivation systems is environment-friendly, since the waste of water and the disposal of nutrients to the environment is drastically reduced or even eliminated. However, ... -
Effect of shading on greenhouse energy balance and crop transpiration
Kitta, E.; Bartzanas, T.; Savvas, D.; Katsoulas, N. (2012)The purpose of this study was to investigate the effect of greenhouse shading and irrigation water salinity on greenhouse microclimate and energy balance and on crop transpiration and leaf photosynthesis. Experiments were ... -
Effects of fertilization and salinity on weed flora in common bean (Phaseolus vulgaris L.) grown following organic or conventional cultural practices
Bilalis, D.; Karkanis, A.; Savvas, D.; Kontopoulou, C. K.; Efthimiadou, A. (2014)Two field experiments were conducted to assess the effects of cultural system and irrigation water salinity on weed flora in a common bean crop (Phaseolus vulgaris L. cv. Contender). The experiments were designed as split ... -
Evaluation of crop reflectance indices for greenhouse irrigation scheduling
Tsirogiannis, I.; Savvas, D.; Katsoulas, N.; Kittas, C. (2012)Development of direct, non-contact, non-destructive methods for irrigation control purposes is of great interest. The present work deals with the evaluation of reflectance indices for irrigation control in greenhouse ... -
Extension and evaluation of a model for automatic drainage solution management in tomato crops grown in semi-closed hydroponic systems
Katsoulas, N.; Savvas, D.; Kitta, E.; Bartzanas, T.; Kittas, C. (2015)In the present paper, a model previously developed to simulate the course of Na+ accumulation in closed hydroponic systems as a function of plant water consumption was further extended so as to be operative also in semi-closed ... -
Greenhouse cooling by a fog system: Effects on microclimate and on production and quality of a soilless pepper crop
Katsoulas, N.; Kitta, E.; Kittas, C.; Tsirogiannis, I. L.; Stamati, E.; Savvas, D. (2006)The influence of greenhouse humidity control on greenhouse microclimate, crop transpiration rate, and yield and fruit quality of a soilless grown pepper crop was studied in a greenhouse located in the coastal area of western ... -
Greenhouse microclimate and soilless pepper crop production and quality as affected by a fog evaporative cooling system
Katsoulas, N.; Kittas, C.; Tsirogiannis, I. L.; Kitta, E.; Savvas, D. (2007)The influence of greenhouse! humidity control on greenhouse microclimate, crop transpiration rate, and yield and. fruit quality of a soilless grown pepper crop was studied in a greenhouse located at the coastal area of ... -
Interactions between salinity and irrigation frequency in greenhouse pepper grown in closed-cycle hydroponic systems
Savvas, D.; Stamati, E.; Tsirogiannis, I. L.; Mantzos, N.; Barouchas, P. E.; Katsoulas, N.; Kittas, C. (2007)Two different irrigation regimes with two different salinity levels were applied to peppers (Capsicum annum L.) grown in closed hydroponic systems in a glasshouse. The two salinity levels were attained by adding NaCl to ... -
Performance test of a Na+ accumulation model as part of a decision support system for closed hydroponic systems management
Katsoulas, N.; Kakavikakis, G.; Kittas, C.; Bartzanas, T.; Savvas, D. (2012)The recycling of greenhouse effluents in soilless cultivation systems is environment-friendly, since the waste of water and the disposal of nutrients to the environment is drastically reduced or even eliminated. However, ... -
Relationships between Reflectance and Water Status in a Greenhouse Rocket (Eruca sativa Mill.) Cultivation
Tsirogiannis, I. L.; Katsoulas, N.; Savvas, D.; Karras, G.; Kittas, C. (2013)Crop water status is an important parameter for plant growth and yield performance in greenhouses, and thus early detection of water stress is essential for efficient crop management. Therefore, the aim of this work was ... -
Response of an eggplant crop grown under Mediterranean summer conditions to greenhouse fog cooling
Katsoulas, N.; Savvas, D.; Tsirogiannis, I.; Merkouris, O.; Kittas, C. (2009)The effects of greenhouse cooling using a high-pressure fog system on greenhouse microclimate and on eggplant (Solanum melongena) crop response were studied at the coastal area of western Greece. Measurements were carried ... -
SHADING EFFECTS ON GREENHOUSE MICROCLIMATE AND CROP TRANSPIRATION IN A CUCUMBER CROP GROWN UNDER MEDITERRANEAN CONDITIONS
Kitta, E.; Katsoulas, N.; Savvas, D. (2012)The aim of this study was to investigate the effects of greenhouse shading on greenhouse microclimate and energy balance, and on crop production. Experiments were carried out in the experimental farm of the University of ... -
Use of a decision support system for management of the drainage solution in semi-closed hydroponic systems under different drainage fractions
Katsoulas, N.; Kittas, C.; Bartzanas, T.; Savvas, D. (2014)Soilless cultivation, especially in closed-loop hydroponic systems offers a great option for water saving in greenhouses. Capture and recycling of the excess irrigation water that drains out of the root zone is possible ...