The effects of plastic greenhouse covering on cucumber (Cucumis sativus L.) growth

A Greenhouse has a different microclimate compared to the outside field. Climate parameters such as solar radiation and air temperature are important parameters that affect plant growth and productivity. This research aims to understand the relation of climate factors in the inside and outside Greenhouse, the effect of microclimate on evapotranspiration and to predict the amount og evapotranspiration inside the Greenhouse. Microclimate analysis was held in two stages, the firststage was from February 5 to March 21, 2018 and the second stage from March 19 to April 29, 2019 at the Department of Civil and Environmental Engineering, IPB University. Primary data was measured by the Decagon sensor. Solar radiation was collected using the Decagon PYR Pyranometer sensor and air temperature using the Decagon VP-4 sensor. Based on the result, the daily air temperature inside the Greenhouse was higher than that of the outside. The inside solar radiation was lower than that of outside the Greenhouse. The relative humidity fluctuated, and the air pressure was higher inside the Greenhouse. Evapotranspiration inside the Greenhouse was lower than outside and solar radiation was the most determining factor of evapotranspiration.

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“…Temperature and solar radiation have an important role in plant growth (Alsadon et al 2016). Solar radiation determines the photosynthesis.…”

Section: Pendahuluanmentioning

confidence: 99%

Microclimate Condition in the Natural Ventilated Greenhouse

Dewi¹,

Setiawan²,

Waspodo³

et al. 2020

J. Tanah dan Iklim

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“…The climate conditions during 2016 were lower than in the 2015 cycle (Figure 1), which resulted in a reduction of biomass accumulation. Particularly, the PAR influenced photosynthetic activity leading to a reduction of the biomass production in the crop [27][28][29][30]. In addition, temperature also directly influenced plant growth, since there is a linear relationship between them [33].…”

Section: Climatic Variablesmentioning

confidence: 99%

“…Nutrients were applied based on Steiner's nutrient solution [49]. Different concentrations of Steiner's nutrient solution [49] were used according to the phenological stages of the crop following the nutrient requirements of these: 25% in vegetative growth 1-20 days after emergence (DAE), 50% in flowering (20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30), and 100% in fruiting . The plants were maintained with a single stem by pruning (removing the axillary buds).…”

Section: Development Of Cucumber Cropmentioning

confidence: 99%

“…In the second crop cycle, a clear decrease of the photosynthetically active radiation PAR and temperature could be observed. This represents a direct effect on crop biomass accumulation since both the PAR and temperature are environmental factors that directly influence photosynthesis [27][28][29][30]. It can be seen that PAR and temperature can proportionally decrease the accumulation of biomass.…”

Section: Introductionmentioning

confidence: 99%

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Determination of Micronutrient Accumulation in Greenhouse Cucumber Crop Using a Modeling Approach

et al. 2017

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Abstract:The control of micronutrient application in cucumber cultivation has great importance as they participate in many functions of metabolism. In addition, micronutrient application efficiency is fundamental to avoid periods of overconsumption or deficits in the crop. To determine micronutrient accumulation using a dynamic model, two cycles of Vitaly and Luxell cucumber crops were grown. During the development of the crop, micronutrient content (Fe, B, Mn, Cu, and Zn) in the different organs of the cucumber plant was quantified. The model dynamically simulated the accumulation of biomass and micronutrients using climatic variables recorded inside the greenhouse as inputs. It was found that a decrease in photosynthetically active radiation and temperature significantly diminished the accumulation of biomass by the cucumber plants. On the other hand, the results demonstrated that the model efficiently simulated both the accumulation of biomass and micronutrients in a cucumber crop. The efficiency evaluation showed values higher than R 2 > 0.95. This dynamic model can be useful to define adequate strategies for the management of cucumber cultivation in greenhouses as well as the application of micronutrients.

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“…The greenhouse air can be heated, cooled, and dehumidified by air circulation units and returned to the greenhouse through heating or cooling ducts. It has much larger dimensions and more powerful climate control equipment, which can supply very specific growing conditions for the study of different crops (Alsadon et al, 2016;Qian et al, 2015). The aim of the semi-closed greenhouse is to recover excess heat to satisfy the heating requirements while keeping the environmental conditions as favorable as possible for plant growth (Boulard et al, 2017).…”

mentioning

confidence: 99%

Model Simulation of Cucumber Yield and Microclimate Analysis in a Semi-closed Greenhouse in China

Ding¹,

Jiang²,

Hui³

et al. 2019

horts

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Adequate greenhouse environmental management is very important for improving resource use efficiency and increasing vegetable yield. The objective of this study was to explore suitable climate and cultivation management for cucumber to achieve high yield and build optimal yield models in semi-closed greenhouses. A fruit cucumber cultivar Deltastar was grown over 4 years in greenhouse and weekly data of yields (mean, highest and lowest) and environmental variables, including total radiation, air temperature, relative humidity, and carbon dioxide (CO2) concentration were collected. Regression analyses were applied to develop the relationships and build best regression models of yields with environmental variables using the first 2 years of data. Data collected in years 3 and 4 were used for model validation. Results showed that total radiation, nutrient, temperature, CO2 concentration, and average nighttime relative humidity had significant correlations with cucumber yields. The best regression models fit the mean, lowest, and highest yields very well with R2 values of 0.67, 0.66, and 0.64, respectively. Total radiation and air temperature had the most significant contributions to the variations of the yields. Our results of this study provide useful information for improving greenhouse climate management and yield forecast in semi-closed greenhouses.

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The effects of plastic greenhouse covering on cucumber (Cucumis sativus L.) growth

Cited by 51 publications

References 61 publications

Microclimate Condition in the Natural Ventilated Greenhouse

Microclimate Condition in the Natural Ventilated Greenhouse

Determination of Micronutrient Accumulation in Greenhouse Cucumber Crop Using a Modeling Approach

Model Simulation of Cucumber Yield and Microclimate Analysis in a Semi-closed Greenhouse in China

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