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Method for promoting plant growth based on LED lamp

A technology that promotes plant growth and LED lights is applied in botany equipment and methods, horticultural methods, greenhouse cultivation, etc. It can solve the problems of excessive agrochemical residues and environmental pollution, and achieve the promotion of plant growth, pure light quality, and production technology. simple effect

Inactive Publication Date: 2013-09-25
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the planting and aquaculture industries around the world use chemical antibiotics, growth agents, pesticides, etc. to promote the growth of animals and plants. Although the effect is obvious, it often causes adverse consequences such as excessive agricultural chemical residues and environmental pollution.

Method used

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  • Method for promoting plant growth based on LED lamp
  • Method for promoting plant growth based on LED lamp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for promoting plant growth through LED lights. The plants in this embodiment are pumpkin seedlings cultivated in the greenhouse. The specific application method is:

[0018] Put the seedling-raising substrate into 50-hole hole trays, and water thoroughly after sowing. Seedlings of uniform size were selected after emergence and the cotyledons were flattened, and were divided into two groups with 15 plants in each group, which were set as the control group and the treatment group.

[0019] At 18:30 every day, the seedlings of the treatment group were irradiated with LED far-red light for 10 minutes, and the light intensity was 5umol / m 2 ·s -1 , and then the treatment group was subjected to dark treatment, and the control group was not treated with LED far-red light at 18:30, and directly entered the dark treatment. The next morning at 7:00, the two groups of seedlings were exposed to light.

[0020] Water and fertilizer management: water once a day in the morn...

Embodiment 2

[0026] The plants in this embodiment are tomato seedlings cultivated in an artificial climate box, and the tomato seeds are "Jinpeng No. 1". The specific application method is:

[0027] Put the seedling-raising substrate into a 72-hole hole tray, and water thoroughly after sowing. Two weeks after emergence, seedlings with uniform size were selected and divided into two groups, 15 plants in each group, which were set as control group and treatment group.

[0028] Set the day and night photoperiod as 14 / 10h, the temperature as 25°C / 18°C, and the humidity as 80%. At the end of the photoperiod, the tomato seedlings in the treatment group were treated with far-red light for 10 minutes, and the light intensity was 100umol / m 2 ·s -1 , followed by dark treatment, and the control group was directly treated with dark treatment without far-red light treatment.

[0029] Water and fertilizer management during seedling raising: water thoroughly once, and then pour water for the second tim...

Embodiment 3

[0035] Plant among this embodiment is the chrysanthemum that cultivates in the greenhouse, and concrete application method is:

[0036] The seedlings with uniform size were selected and divided into two groups with 9 plants in each group, which were set as the control group and the treatment group.

[0037] At 18:00 every day, the treatment group was given LED far-red light irradiation for 15 minutes, and the light intensity was 50umol / m 2 ·s -1 , and then the treatment group was subjected to dark treatment, and the control group was not treated with LED far-red light at 18:00, and directly entered the dark treatment. The next morning at 9:00, the two groups of seedlings were exposed to light. The nutrient solution was poured once a day for 21 days, and the morphological indicators of the seedlings were determined as shown in Table 3.

[0038] Table 3 Comparison of plant height and internode length between control and treatment groups

[0039] category

[0040] N...

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Abstract

The invention discloses a method for promoting plant growth through an LED lamp. The method is implemented by giving LED far-red light irradiation to the plant after the photophase of the plant growth is over; the used light intensity is 5 to 20 Mu mol / m<2>*s<-1>, and the lighting time is 5 to 30 minutes. The method for promoting plant growth through LED far-red light has the advantages that the elongation growth of a hypocotyl and an internode of the plant can be improved, the strong seeding can be cultivated, the output of the vegetable crop can be increased, the commodity of flowers and plants is enhanced, and the growth cycle is reduced.

Description

1 technical field [0001] The invention belongs to the application of lighting products in the field of agriculture, and relates to a method for promoting plant growth through LED far-red light. 2 background technology [0002] Light is one of the most important factors affecting plant growth and development in nature. It not only provides radiant energy for plant photosynthesis, but also acts as an environmental signal to regulate many physiological processes throughout the life cycle of plants. Such as seed germination, plant growth, flower bud differentiation and organ senescence. This process of regulating plant growth, differentiation and development by light is called photomorphogenesis or light-controlled development of plants. The process of light controlling plant growth, development and differentiation is a low-energy response to light. Light plays a signal role here, and the nature of the signal is related to the wavelength of light. Plants experience light sign...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G7/06A01G9/20
Inventor 杨振超佘新丁娟娟耿凤展曹凯
Owner NORTHWEST A & F UNIV
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