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Articles

THE EFFECT OF HEIGHT ON SCREENHOUSE MICROCLIMATE

Article number

801_6

Pages

107 – 114

Language

English

Abstract

Covering crops with screens is a common practice used to attain a number of objectives: shading from supra-optimal solar radiation, sheltering from wind and hail, improving the thermal climate and exclusion of insects.
Obviously the existence of a screenhouse modifies the crop microclimate.
Screenhouses of different heights are used by different growers for the same crop.
This is mainly due to the limited information on the effects of the different heights on the microclimate.
Thus, the objective of this research was to investigate the effect of screenhouse height on several microclimatic parameters.
Measurements were conducted in two adjacent, otherwise very similar screenhouses of different roof height: 4 m and 2 m in which Ornamental Ruscus was grown.
The following parameters were measured in each house, approximately at its center: dry- and wet-bulb air temperature by four sensors, leaf temperature and net radiation.
Results show that net radiation was almost identical in the two houses.
Air temperature and vapour pressure deficit near the plants, as well as leaf temperature, were higher in the lower screenhouse than those measured in the higher one.
The average daily air temperature difference and leaf temperature difference between the two houses were 1.5°C and 1.1°C respectively.
The vertical temperature gradient within the lower screenhouse was about 3 times larger than that within the higher screenhouse, due to the better air mixing in the latter than in the former and the movement of warm air to higher levels in the higher screenhouse than in the lower one.
Most of the time, absolute humidity in the higher house was closer to the outside absolute humidity than that in the lower house.
In conclusion, this study indicated on enhanced mixing and ventilation of the air near the plants in the higher screenhouse as compared to the lower one.

Publication

International Symposium on High Technology for Greenhouse System Management: Greensys2007

Authors

J. Tanny, M. Teitel, M. Barak, Y. Esquira, R. Amir

Keywords

air temperature; air humidity; leaf temperature; ventilation

Full text

https://doi.org/10.17660/ActaHortic.2008.801.6

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H.F. de Zwart

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T. Boulard | H. Fatnassi | H. Majdoubi | L. Bouirden

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T. Bartzanas | N. Tadj | B. Draoui | C. Kittas

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112. SUGGESTIONS TO IMPROVE LEEWARD VENTILATION OF LARGE SPAN GREENHOUSES

113. NUMERICAL MODELLING AND EXPERIMENTAL MEASUREMENTS OF PESTICIDES DISPERSION IN A NATURALLY VENTILATED GREENHOUSE

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117. NUMERICAL AND EXPERIMENTAL STUDY OF FAN AND PAD EVAPORATIVE COOLING SYSTEM IN A GREENHOUSE WITH TOMATO CROP

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118. NUMERICAL SIMULATIONS OF TURBULENT FLOW THROUGH SCREEN MESH

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119. SIMULHYDRO, A SIMPLE TOOL FOR PREDICTING WATER USE AND WATER USE EFFICIENCY IN TOMATO CLOSED-LOOP SOILLESS CULTIVATIONS

120. COMPARISON OF HUMIDITY CONDITIONS IN UNHEATED TOMATO GREENHOUSES WITH DIFFERENT NATURAL VENTILATION MANAGEMENT AND IMPLICATIONS FOR CLIMATE AND BOTRYTIS CINEREA CONTROL

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121. EFFECT OF GREENHOUSE ROOF OPENING SYSTEM ON INTERNAL CLIMATE AND ON GYPSOPHILA YIELD AND QUALITY CONTROL

G. Fascella | S. Agnello | B. Sciortino | G.V. Zizzo

122. EFFECTS OF ROOT-ZONE HEATING IN EARLY MORNING ON CELERY GROWTH AND ELECTRICITY COST

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123. APPLICATION OF A PHOTOSYNTHESIS MODEL TO OPTIMIZE GREENHOUSE CLIMATE MANAGEMENT

M. Sciortino | T. Mimmo | G. Vitali | G. Gianquinto | J.M. Aaslyng

124. SIMULATED EFFECTS OF VARIOUS ENVIRONMENTAL MANAGEMENT PRACTICES ON WATER CONSUMPTION IN OPEN AND CONFINED GREENHOUSE SYSTEMS

I. Yildiz | D.P. Stombaugh

125. INFLUENCE OF SUPPLEMENTARY LIGHTING ON AUTUMN-WINTER YIELD OF FOUR GERBERA (GERBERA JAMESONII) CULTIVARS

G. Cristiano | M.A. Cocozza Talia | A.M.F. La Viola | A. Sancilio

126. EFFECTS OF ROOT-ZONE NUTRIENT CONCENTRATION ON CUCUMBER GROWN IN ROCKWOOL

F. Giuffrida | E. Heuvelink | C. Stanghellini

127. CO₂ CONCENTRATION IN THE ROOT ZONE OF VEGETABLES, CULTIVATED IN ORGANIC SUBSTRATES

N. Gruda | T. Rocksch | U. Schmidt

128. MODELLING VISUAL QUALITY OF KALANCHOE BLOSSFELDIANA: INFLUENCE OF CULTIVAR AND POT SIZE

S.M.P. Carvalho | J. Almeida | B. Eveleens-Clark | M.J. Bakker | E. Heuvelink

129. HEATING STRATEGIES FOR AN EGGPLANT (SOLANUM MELONGENA L.) CROP ON MEDITERRANEAN GREENHOUSES

130. CLIMATE AND YIELD IN A CLOSED GREENHOUSE

E. Heuvelink | M. Bakker | L.F.M. Marcelis | M. Raaphorst

131. GROWTH CHARACTERISTICS OF POTATO TRANSPLANTS GROWN UNDER CONTROLLED ENVIRONMENT

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132. GROWTH RESPONSE AND NITROGEN USE EFFICIENCY OF TWO DIEFFENBACHIA CULTIVARS GROWN IN SOILLESS CULTURE

G. Colla | Y. Rouphael | M. Cardarelli

133. GREENHOUSE GROWTH OF EUPHORBIA X LOMI RAUH IN PEAT-REDUCED AND PEAT-FREE SUBSTRATES PREPARED WITH DIFFERENT COMPOSTED WASTES

134. USING GROWTH FUNCTIONS TO DESCRIBE DRY MATTER PRODUCTION OF SWEET PEPPER IN GREENHOUSES IN SOUTHERN SPAIN

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135. EVALUATION OF STRAWBERRY CULTIVARS IN SOILLESS CULTIVATION IN SICILY

A. Moncada | A. Miceli | F. D¿Anna

136. SHORT-TERM NITRATE UPTAKE RATES FOR SOILLESS CULTURE: SEASONAL EMPIRICAL RELATIONSHIPS FOR ROSE CROP PRODUCTION

D. Roca | R.M. Belda | A. Calatayud | E. Gorbe | P.-F. Martínez

137. COMPARING MINERAL UPTAKE EFFICIENCIES IN ROSE PLANT FLOWERING FLUSHES UNDER TWO CLIMATE CONDITIONS

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138. THE INFLUENCE OF IRRIGATION ON GAS COMPOSITION IN THE RHIZOSPHERE AND GROWTH OF THREE HORTICULTURAL PLANTS, CULTIVATED IN DIFFERENT SUBSTRATES

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139. PREDICTING LEAF NUMBER OF GREENHOUSE ZUCCHINI SQUASH USING DEGREE DAYS AND PHOTOSYNTHETICALLY ACTIVE RADIATION

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R. Paradiso | S. Fiorenza | S. De Pascale

141. GRAFTING EFFECTS ON TOMATO GROWTH RATE, YIELD AND FRUIT QUALITY UNDER SALINE IRRIGATION WATER

A. Balliu | G. Vuksani | T. Nasto | L. Haxhinasto | S. Kaçiu

142. EFFECT OF THE REDUCTION OF NUTRIENT SOLUTION CONCENTRATION ON LEAFY VEGETABLES QUALITY GROWN IN FLOATING SYSTEM

143. EFFECT OF A BIOFERTILISER ON THE GROWTH OF POINSETTIA

L. Martinetti | A. Sparacino | A. Ferrante | L. Allievi

144. EFFECT OF SALINITY ON TOMATO PLANT ARCHITECTURE

145. THE INFLUENCE OF SHADING LEVELS ON FOLIAGE PLANT GROWTH AND QUALITY

D. Scuderi | A. Li Rosi | C. Cassaniti | A. Paratore | D. Romano

146. COMPARISON BETWEEN CONVENTIONAL AND VACUUM STORAGE SYSTEM IN CUT FOLIAGE

S. Pacifici | A. Mensuali-Sodi | G. Serra | A. Ferrante

147. INNOVATIVE CULTIVATION OF VEGETABLES ON VERTICALLY MOVING BEDS CONTROLLED BY DOUBLE SEESAW MECHANICS

148. DETECTION OF WATER STRESS INDUCED PHOTOSYNTHETIC DYSFUNCTION IN TOMATO PLANT LEAF WITH PRI MEASUREMENT

K. Takayama | H. Nishina | Y. Sakai

149. MANAGEMENT OF GREENHOUSE CROP TRANSPIRATION: THE WAY FORWARD

A. Elings | W. Voogt

150. ESTIMATING STOMATAL CONDUCTANCE OF GREENHOUSE GROWN PLANTS SUBJECTED TO WATER STRESS AND DIFFERENT HUMIDITY REGIMES

N.E. Andersson | K. Koefoed Petersen

151. DESIGNING A GREENHOUSE PLANT: NOVEL APPROACHES TO IMPROVE RESOURCE USE EFFICIENCY IN CONTROLLED ENVIRONMENTS

A. Maggio | S. De Pascale | G. Barbieri

152. EFFECTS OF EC LEVELS OF NUTRIENT SOLUTION ON TOMATO CROP IN OPEN AND CLOSED SYSTEMS

G.B. Oztekin | Y. Tüzel | I.H. Tüzel | K.M. Meric

153. TECHNICAL SOLUTIONS TO PREVENT HEAT STRESS INDUCED CROP GROWTH REDUCTION FOR THREE CLIMATIC REGIONS IN MEXICO

A. van ¿t Ooster | E. Heuvelink | V.M. Loaiza Mejía | E.J. van Henten

154. SIMULTANEOUS RESPONSE OF STEM DIAMETER, SAP FLOW RATE AND LEAF TEMPERATURE OF TOMATO PLANTS TO DROUGHT STRESS

155. CYCLIC IRRIGATION OF SALINE AND NON-SALINE WATER INFLUENCE GROWTH AND YIELD OF LETTUCE CULTIVARS UNDER GREENHOUSE CONDITIONS

A.A. Alsadon | M.A. Wahb-allah | S.O. Khalil

156. AN EMPIRICAL APPROACH TO THE DELINEATION OF GROWING CONDITIONS WITHIN A COOLED CONSERVATORY IN SINGAPORE

K. Boon Hwee Er | N. Kishnani | W. Kessling | V. Yong Bian Koo

157. GREENHOUSE TUNNEL VENTILATION DEPENDENCE ON TOMATO CROP HEIGHT AND LEAF AREA INDEX

H. Fatnassi | T. Boulard | C. Leyronas | M. Bardin | P. Nicot

158. THE EFFECT OF DIFFUSE LIGHT ON CROPS

S. Hemming | T. Dueck | J. Janse | F. van Noort

159. EVALUATION OF COMBINED APPLICATION OF FOG SYSTEM AND CO₂ ENRICHMENT IN GREENHOUSES BY USING PHYTOMONITORING DATA

U. Schmidt | C. Huber | T. Rocksch

160. VALIDATION OF CANOPY PHOTOSYNTHESIS MODELS FOR CLIMATE CONTROL IN GREENHOUSES

M. Sciortino | D. Wulfsohn | A. Andreassen | G. Gianquinto | J.M. Aaslyng

161. SIMULATED EFFECTS OF VARIOUS ENVIRONMENTAL MANAGEMENT PRACTICES ON ENERGY CONSUMPTION IN OPEN AND CONFINED GREENHOUSE SYSTEMS

I. Yildiz | D.P. Stombaugh

162. INCORPORATION OF A MODEL TO PREDICT CROP TRANSPIRATION IN A COMMERCIAL IRRIGATION EQUIPMENT AS A CONTROL METHOD FOR WATER SUPPLY TO SOILLESS HORTICULTURAL CROPS

E. Medrano | F.J. Alonso | MA. Cruz Sánchez-Guerrero | P. Lorenzo

163. ECONOMIC GAIN FOR CUCUMBER PRODUCTION FROM GREENHOUSE COOLING IN FINLAND

T. Kaukoranta | J. Huttunen

164. ALTERED PLANT STRUCTURE AND GREATER YIELD OF CUCUMBER GROWN AT ELEVATED CO₂ IN A SEMI-CLOSED GREENHOUSE

E.-M. Luomala | L. Särkkä | T. Kaukoranta

165. UNCERTAINTY ON ESTIMATED PREDICTIONS OF ENERGY DEMAND FOR DEHUMIDIFICATION IN A CLOSED TOMATO GREENHOUSE

E. Schrevens | P. Jancsok | K. Dieussaert

166. THE GESKAS PROJECT, CLOSED GREENHOUSE AS ENERGY SOURCE AND OPTIMAL GROWING ENVIRONMENT

H. Hoes | J. Desmedt | K. Goen | L. Wittemans

167. EFFECTS OF ANTI-TRANSPIRANTS ON TRANSPIRATION AND ENERGY USE IN GREENHOUSE CULTIVATION

L.F.M. Marcelis | F. Kempkes | C. Stanghellini | C. Grashoff

168. NITROGEN CONCENTRATION IN NUTRIENT SOLUTION AND MODULE VOLUME EFFECTS ON THE GROWTH CHARACTERS AND YIELD POTENTIALS OF EGGPLANT SEEDLINGS

A. Balliu | G. Sallaku | S. Kuçi

169. QUANTIFYING THE EFFECTS OF LEAF NITROGEN CONTENT ON LEAF PHOTOSYNTHESIS RATE OF GREENHOUSE CUCUMBER UNDER DIFFERENT PAR AND TEMPERATURE CONDITIONS

170. GROWTH RESPONSE OF HEDERA HELIX L. TO TEMPERATURE INTEGRATION

B. Pollet | K. Steppe | P. Dambre | M.-C. Van Labeke | R. Lemeur

171. EFFECTS OF BLUE-LIGHT PHOTON FLUX DENSITY ON NITROGEN AND CARBOHYDRATE CONTENT AND GROWTH OF SPINACH

R. Matsuda | K. Ohashi-Kaneko | K. Fujiwara | K. Kurata

172. THERMAL AND LIGHT REQUIREMENTS FOR FLOWER DIFFERENTIATION OF SNAPDRAGON

R. Paradiso | G. Aronne | S. De Pascale

173. THE APPLICATION OF LEDS AS ASSIMILATION LIGHT SOURCE IN GREENHOUSE HORTICULTURE: A SIMULATION STUDY

W. van Ieperen | G. Trouwborst

174. A METHOD TO DETECT BASELINE EMISSION AND PLANT DAMAGE INDUCED VOLATILE EMISSION IN A GREENHOUSE

175. A PHOTO-THERMAL MODEL FOR PREDICTING DEVELOPMENT AND QUALITY OF STANDARD CUT CHRYSANTHEMUM IN GREENHOUSES

Jianfeng Dai | Weihong Luo | Zaiqiang Yang

176. PRODUCTION OF HIGH QUALITY VEGETABLE BY APPLYING LOW TEMPERATURE STRESS TO ROOTS

177. HIGH QUALITY TOMATO PRODUCTION BY SUITABLE APPLICATION OF CONCENTRATED DEEP SEAWATER

178. INTRA-CANOPY VARIABILITY OF FRUIT QUALITY IN KIWIFRUIT VINES PROTECTED BY ANTI-HAIL NETS

B. Basile | R. Romano | M. Giaccone | M. Forlani

179. GREENHOUSE PRODUCTION OF VEGETABLE CROPS GROWN WITH A CLOSED-LOOP FERTIGATION SYSTEM IN A PESTICIDE-FREE ENVIRONMENT

D.J. Cantliffe | N.L. Shaw | E. Jovicich | L.S. Osborne | P.J. Stoffella

180. SPATIO-TEMPORAL DISTRIBUTION OF PLANT BIOAGGRESSORS IN GREENHOUSES: TOWARDS A BETTER KNOWLEDGE OF DISEASE AND PEST DYNAMICS

C. Poncet | J. Vaglio | A. Bout | L. Mailleret | R. Boll

181. EFFECT OF RHIZOBACTERIA ON PLANT GROWTH OF DIFFERENT VEGETABLES

F. Kidoglu | A. Gül | H. Ozaktan | Y. Tüzel

182. EVALUATION OF CONCENTRATED RELEASES OF PARASITOIDS FOR THE CONTROL OF WHITEFLIES ON POINSETTIA

G. Amoroso | P. Frangi | R. Piatti

183. EFFECTS OF SUBSTRATE SOLARIZATION ON TOMATO SOILLESS CULTIVATION

A. Moncada | G. Caracciolo | F. D'Anna

184. EFFICIENCY OF NEOSEIULUS CUCUMERIS AND FRANKLINOTHRIPS VESPIFORMIS FOR CONTROLLING THRIPS IN ROSE GREENHOUSES

185. EFFECT OF NITROGEN SOURCE AND CONCENTRATION IN RECIRCULATED SOLUTION ON INCIDENCE OF CUCUMBER MORTALITY BY PYTHIUM AND FUSARIUM CROWN ROT

B. Bar-Yosef | G. Kritzman | I. Levkovich | P. Klaering

186. OPERATOR SAFETY DURING PESTICIDE APPLICATION IN GREENHOUSES: A SURVEY ON ITALIAN SITUATION

187. A PROTOTYPE FOR MECHANICAL DISTRIBUTION OF BENEFICIALS

G. Blandini | G. Emma | S. Failla | G. Manetto

188. PERFORMANCE EVALUATION OF SPRAYERS USED FOR COVERED STRAWBERRY CROP

P. Guarella | S. Pascuzzi | A. Guarella

189. OPERATOR CONTAMINATION DURING PESTICIDE APPLICATION IN TOMATO GREENHOUSE

E. Cerruto | G. Emma | G. Manetto

190. CARBON DIOXIDE CONCENTRATION IN MEDITERRANEAN GREENHOUSES: HOW MUCH LOST PRODUCTION?

C. Stanghellini | L. Incrocci | J.C. Gázquez | B. Dimauro

191. WATER AND FERTILIZERS USE EFFICIENCY IN GRAFTED AND NON GRAFTED TOMATO PLANTS ON SOILLESS CULTURE

CH. Lykas | C. Kittas | A. Zambeka

192. EFFECTS OF SOLARIZATION AND BIOFUMIGATION ON TOMATO GREENHOUSE PRODUCTION IN THE SOUTHERN COAST OF SICILY

G. Iapichino | L. Puleo | F. Vetrano | A. Sciortino

193. POINSETTIA (EUPHORBIA PULCHERRIMA) CULTIVATION IN BIODEGRADABLE POTS: MECHANICAL AND AGRONOMICAL BEHAVIOUR OF POTS AND PLANTS TRAITS

V. Candido | V. Miccolis | D. Castronuovo | C. Manera

194. GROWTH OF ORNAMENTAL SHRUBS IN WOOD FIBRE-BASED GROWING MEDIA

P. Frangi | G. Amoroso | F. Ferrini | A. Fini

195. SUBSTRATE REUSE IN TOMATO SOILLESS CULTIVATION

F. Giuffrida | C. Leonardi | O. Marfà

196. ENVIRONMENTAL IMPACT OF PESTICIDES IN VEGETABLE CROP PRODUCTION UNDER THE MEDITERRANEAN CLIMATE OF CENTRAL ITALY

A. Marucci | B. Pagniello | E. Campiglia | Y. Rouphael | G. Colla

197. COMPARING THE ENVIRONMENTAL IMPACTS OF GREENHOUSE VERSUS OPEN-FIELD TOMATO PRODUCTION IN THE MEDITERRANEAN REGION

198. ENVIRONMENTAL EVALUATION BY MEANS OF LCA REGARDING THE ORNAMENTAL NURSERY PRODUCTION IN ROSE AND SOWBREAD GREENHOUSE CULTIVATION

G. Russo | B. De Lucia Zeller