Artificial light in agriculture

Authors
January 2018
46 pages

BURES, Silvia; URRESTARAZU GAVILÁN, Miguel; KOTIRANTA, Stiina. January 2018. LED light has been described as the most revolutionary invention in horticultural lighting in recent decades. 46 pages

By Silvia BURES, Miguel URRESTARAZU GAVILÁN y Stiina KOTIRANTA. January 2018. 46 pp.

For many years, it is known that plants require light for growth, but not until the last hundred years with the development of science and technology that the exact effect of light on plants is fully discovered.

In agriculture, the use of artificial lighting seeks to provide a source of light that is similar to sun light. With the innovation of technology, LEDs lights has been the ideal solution for horticultural lighting, especially those ones with customized built spectra. LEDs light marks an advantage in terms of environmental and production efficiency in comparison with traditional used lights (HPS, fluorescents).

In January 2018, Valoya in collaboration with the University of Almeria and Buresinnova has published a study about artificial lighting in agriculture. The study introduces experiments using different spectra and types of light to measure how they can affect plants on different growing purposes and cultivating conditions. An extract from the study is presented below.

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BuresInnova information & contactMercabarna Flor. Local 412. Ctra. Antiga de València, 1. 08830 Sant Boi de Llobregat. Barcelona. Spain. (+34) 936 614 785 / info@buresinnova.com

Table of Contents

1 Plants and light signaling ………. 3
2 Plant pigments, photoreceptors, and photosynthesis ………. 3
3 Light quality ………. 6
4 The colors of light ………. 7
5 Phytochrome and photoperiod ………. 9
6 Vernalization ………. 11
7 Artificial lighting for plant growth ………. 12
8 How to measure light? ………. 13
9 Development of a spectrum ………. 14
10 The effect of light spectrum on plant growth ………. 16
11 Applications of artificial lighting in agriculture ………. 22
11.A Grafting of vegetable seedlings ………. 22
11.B Seed production ………. 25
11.C Vertical Farms (Vertical Farming) ………. 27
11.D Production of aromatic and medicinal plants ……….  32
11.E Hydroponic green forage ………. 33
11.F Cannabis ………. 35
11.G Algae ………. 38
11.H Other applications ………. 42
12 Bibliography ………. 44
13 Webgraphy ………. 46
14 How to refer ………. 46

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