Abstract
The organisation of even minor additional lighting on the General light background gives a noticeable effect and is the primary task of vegetable growing. The influence of different peaks of 440-450 nm and 650-660 nm of the spectrum for optimal plant growth was experimentally studied. The lack of functional mathematical models for describing the development of plants indicates the need for scientific justification of the optimal spectral composition of the photosynthetically active zone on the example of a specific culture of protected soil. The dynamics of plant height growth in various lighting options is compared: without additional artificial lighting, when using a DNAT lamp, a GLP-FH-56-B lamp, a GLP-FH-56-R lamp, a GLP-FH-56-RB lamp. The obtained functional models of growth in the first two months of vegetation with a different spectrum of additional lighting with good correlation describe power equations.
Highlights
To obtain a strong and healthy planting material, the duration of daylight for plants should be at least 10 ... 14 hours
It is reasonable to scientifically substantiate the optimal spectral composition of the photosynthetically active radiation zone [9.10] for a specific crop of protected soil [5,6,7,8], and in this regard, we have studied the influence of peaks of 440-450 nm and 650660 nm of the spectrum of experimental led lamps on the phases of tomato development
As a result of statistical processing of experimental results (Fig. 1), using the MathCAD-14 mathematical package, a number of functional models of plant height were obtained for various lighting methods (Fig. 2): Y – without additional lighting; Y0- DNAT lamp; Y1-GLPFH-56-B lamp; Y2-GLP-FH-56 – R lamp; Y3- GLP-FH56- RB lamp
Summary
To obtain a strong and healthy planting material, the duration of daylight for plants should be at least 10 ... 14 hours. It is reasonable to scientifically substantiate the optimal spectral composition of the photosynthetically active radiation zone [9.10] for a specific crop of protected soil [5,6,7,8], and in this regard, we have studied the influence of peaks of 440-450 nm and 650660 nm of the spectrum of experimental led lamps on the phases of tomato development. The analysis of these works and the works of other authors indicates the absence of functional mathematical models of plant development. The purpose of this work is to identify the functional model of changes in the height of tomato plants during their growth under the light influence of various light sources
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
