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Method for promoting tobacco seedling culture by means of LED plant growth light source

A LED light source and plant growth technology, applied in the field of LED light source to promote plant growth, can solve the problems of being away from the plant growth environment, increasing the difficulty of the process, restricting the application and promotion, etc., to improve the space growth temperature, easily adjust the spectrum, and shorten the time Effect

Inactive Publication Date: 2015-12-23
HUNAN LYUMI SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are two problems in the chip-plus-chip mode: the first is that the spectrum obtained by the mode of blue-light chip plus red-light chip is a line spectrum, which is far from sunlight and far away from the original growth environment of plants; The price is more than 2-3 times that of the Blu-ray chip. At the same time, the double-chip packaging mode itself increases the difficulty of the process and indirectly increases the production cost, thus restricting the application and promotion of LED plant lighting devices in the chip-plus-chip mode

Method used

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  • Method for promoting tobacco seedling culture by means of LED plant growth light source
  • Method for promoting tobacco seedling culture by means of LED plant growth light source
  • Method for promoting tobacco seedling culture by means of LED plant growth light source

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Experimental program
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Effect test

Embodiment 1

[0026] Preparation of nitride red phosphor Sr under high temperature and high pressure environment at a temperature of 1700 °C 2 Si 5 N 8 : Eu( figure 1 and figure 2 ), the phosphor has a very strong excitation at 460nm and a very strong emission spectrum at 600nm (see image 3 ), the fluorescent powder and organic silica gel are uniformly mixed according to the mass ratio of 1:10, assembled into LED plant growth light sources, and assembled into LED flat lights (see Figure 4 ), using iron material to assemble the bracket, the length is 69cm, the width is 23cm, and the layer spacing is 17cm, which is used for placing the floating plate, and each layer hangs 1 group of fluorescent powder excited type LED plant growth flat panel lights of the present invention, which is applied to the whole Indoor tobacco seedling cultivation (see Figure 5 ). The room temperature is 28°C, and the light intensity is expressed by light quantum efficiency, which is controlled at 80-150 μmo...

Embodiment 2

[0030] Preparation of nitride red phosphor Sr under high temperature and high pressure environment at a temperature of 1700 °C 2 Si 5 N 8 : Eu( figure 1 and figure 2 ), the phosphor has a very strong excitation at 460nm and a very strong emission spectrum at 610nm (see image 3 ), the fluorescent powder and organic silica gel are uniformly mixed according to the mass ratio of 1:10, assembled into LED plant growth light sources, and assembled into LED flat lights (see Figure 4 ), using iron material to assemble the bracket, the length is 69cm, the width is 23cm, and the layer spacing is 17cm, which is used to place the floating plate, and each layer hangs a group of fluorescent powder excited LED plant growth flat panel lights of the patent invention, which are used in Whole indoor tobacco seedling cultivation (see Figure 5 ). The room temperature is 28°C, and the light intensity is expressed by light quantum efficiency, which is controlled at 80-150 μmol / m 2 / s, the p...

Embodiment 3

[0034] Preparation of nitride red phosphor Sr under high temperature and high pressure environment at a temperature of 1700 °C 2 Si 5 N 8 : Eu( figure 1 and figure 2 ), the phosphor has a very strong excitation at 460nm and a very strong emission spectrum at 620nm (see image 3 ), the fluorescent powder and organic silica gel are uniformly mixed according to the mass ratio of 1:10, assembled into LED plant growth light sources, and assembled into LED flat lights (see Figure 4 ), using iron material to assemble the bracket, the length is 69cm, the width is 23cm, and the layer spacing is 17cm, which is used for placing the floating plate, and each layer hangs 1 group of fluorescent powder excited type LED plant growth flat panel lights of the present invention, which is applied to the whole Indoor tobacco seedling cultivation (see Figure 5 ). The room temperature is 28°C, and the light intensity is expressed by light quantum efficiency, which is controlled at 80-150 μmo...

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Abstract

The invention relates to a method for promoting tobacco seedling culture by means of an LED plant growth light source. The phosphor excitation type LED plant growth light source is prepared by combining phosphor glowing red light and a blue chip, the phosphor adopts an aluminate matrix or a vanadate matrix or a nitride matrix, the phosphor can be effectively excited in the wavelength ranging from 440 nm to 470 nm, obvious emission occurs in the wavelength ranging from 600 nm to 660 nm, and one part of the phosphor and 4-20 parts of organic silica gel are mixed. By means of the phosphor excitation type LED, enough light can be provided for the tobacco seedling culture, the growth temperature of the tobacco seedling culture space can be increased by 2-5 DEG C, and on the premise that the tobacco seedling quality is guaranteed or even improved, the tobacco seedling culture time can be effectively shortened. The method for promoting the tobacco seedling culture by means of the LED plant growth light source is suitable for conducting supplemental lighting on a greenhouse and full-indoor seedling culture in the area without enough light in the tobacco seedling culture period or full-indoor seedling culture in a consecutive year, and the method can be popularized in a large scale.

Description

technical field [0001] The invention belongs to the technical field of LED light sources for promoting plant growth, and in particular relates to a method for promoting tobacco seedling cultivation by utilizing LED plant growth light sources. Background technique [0002] my country is the largest tobacco producing country in the world, and the tobacco industry has a unique position in the national economy. [0003] Light is an important environmental factor for crop growth and development. Light quality (band composition) and light intensity have a great impact on crop morphogenesis, photosynthesis, metabolic regulation and quality. The flue-cured tobacco seedlings in Hunan, Fujian, Yunnan and other places are carried out from January to March every year. This period is the season with the lowest annual temperature and light intensity, the least number of light hours, and frequent cold waves. This unfavorable climatic condition has led to the adoption of greenhouse heat pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G7/04F21K2/06F21Y101/02
CPCA01G7/045F21K2/06Y02P60/14
Inventor 周智盖淑杰刘清玲杨建奎刘晓颖欧阳显亮黄浩龚婷
Owner HUNAN LYUMI SCI & TECH
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