Results 41 to 50 of about 6,669,434 (379)

Interaction of Supplementary Light and CO2 Enrichment Improves Growth, Photosynthesis, Yield, and Quality of Tomato in Autumn through Spring Greenhouse Production

Hortscience, 2019
During the autumn/spring “off” season, yield and quality of tomatoes are often affected by insufficient CO2 and low light in greenhouse production.
Tonghua Pan, Juanjuan Ding, Gege Qin, Yunlong Wang, Linjie Xi, Junwei Yang, Jianming Li, Jing Zhang, Z. Zou   +8 more
semanticscholar   +1 more source

Pre- and post-production processes increasingly dominate greenhouse gas emissions from agri-food systems

Earth System Science Data, 2022
. We present results from the FAOSTAT emissions shares database, covering emissions from agri-food systems and their shares to total anthropogenic emissions for 196 countries and 40 territories for the period 1990–2019.
F. Tubiello, Kevin Karl, A. Flammini, Johannes Gütschow, Griffiths Obli-Laryea​​​​​​​, G. Conchedda, Xueyao Pan, Sally Yue Qi, Hörn Halldórudóttir Heiðarsdóttir, Nathaniel S. Wanner, R. Quadrelli, Leonardo Rocha Souza, Philippe Benoit, M. Hayek, D. Sandalow, Erik Mencos Contreras​​​​​​​, C. Rosenzweig, José Rosero Moncayo, P. Conforti, M. Torero   +19 more
semanticscholar   +1 more source

Heating greenhouses by light: A novel concept for intensive greenhouse production

Biosystems Engineering, 2023
High-tech greenhouses are characterised by high yields and high energy consumption. Current trends towards expanded use of supplemental lighting further increase the intensity of crop production and energy use, and it is expected that the availability of light-emitting diodes (LEDs) will accelerate this trend.
Katzin, David, Marcelis, Leo F.M., van Henten, Eldert J., van Mourik, Simon   +3 more
openaire   +1 more source

Climate and Yield in a closed greenhouse [PDF]

, 2008
The so-called closed greenhouse (closed ventilation windows) is a recent innovation in Dutch greenhouse industry. The technical concept consists of a heat pump, underground (aquifer) seasonal energy storage as well as daytime storage, air treatment units
Bakker, M.J., Heuvelink, E., Marcelis, L.F.M., Raaphorst, M.   +3 more
core   +2 more sources

Identification of Plant Growth Promoting Rhizobacteria That Improve the Performance of Greenhouse-Grown Petunias under Low Fertility Conditions

Plants, 2021
The production of greenhouse ornamentals relies on high fertilizer inputs to meet scheduling deadlines and quality standards, but overfertilization has negative environmental impacts.
Kaylee A. South, Nathan P. Nordstedt, Michelle L. Jones   +2 more
doaj   +1 more source

Remote Control of Greenhouse Vegetable Production with Artificial Intelligence—Greenhouse Climate, Irrigation, and Crop Production [PDF]

Sensors, 2019
The global population is increasing rapidly, together with the demand for healthy fresh food. The greenhouse industry can play an important role, but encounters difficulties finding skilled staff to manage crop production. Artificial intelligence (AI) has reached breakthroughs in several areas, however, not yet in horticulture.
Hemming, Silke, de Zwart, Feije, Elings, Anne, Righini, Isabella, Petropoulou, Anna   +4 more
openaire   +4 more sources

A Simple and Effective Model for Predicting the Thermal Energy Requirements of Greenhouses in Europe

Energies, 2023
In this paper, a simple model is proposed for predicting the thermal energy requirements of greenhouses in Europe. The model estimates the annual heating requirements and the maximum required heating power, along with the corresponding heating and zero ...
Anna-Maria N. Dimitropoulou, Vasileios Z. Maroulis, Eugenia N. Giannini   +2 more
doaj   +1 more source

Assessment of climate change impact and resource-use efficiency of lettuce production in vertical farming and greenhouse production in Finland: a case study

The International Journal of Life Cycle Assessment
Our aim in this study was to examine lettuce production in vertical farming or in conventional greenhouse production in Northern European conditions from the perspective of climate change impact and environmental sustainability.
K. Joensuu, T. Kotilainen, K. Räsänen, Marja Rantanen, K. Usva, F. Silvenius   +5 more
semanticscholar   +1 more source

Comparison of Selected Costs in Greenhouse Cucumber Production with LED and HPS Supplemental Assimilation Lighting

Agronomy, 2020
The amount of energy used in agricultural production, processing and distribution is constantly increasing. During the winter months in the greenhouse production industry, the supplemental lighting required to keep up production levels results in high ...
Katarzyna Kowalczyk, Dawid Olewnicki, Małgorzata Mirgos, Janina Gajc-Wolska   +3 more
doaj   +1 more source

Use of supplementary lighting top screens and effects on greenhouse climate and return on investment [PDF]

, 2008
Discomfort caused by light pollution from greenhouses that apply supplementary lighting is an issue in Dutch society nowadays. At this moment Dutch legislation requires an opaque screen that reduces light transmission of the greenhouse wall by 95%.
Bongaerts, H.R.M., Henten, E.J., van, Janssen, E.G.O.N., Ooster, A., van 't   +3 more
core   +1 more source