Method for restraining plant vain growth through LED lamp

A LED lamp and plant growth technology, which is applied in the field of restraining the excessive growth of vegetable seedlings, can solve the problems of high energy consumption, excessive growth of seedlings, insufficient light intensity and light time, etc., and achieve the effect of simple production process

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

AI Technical Summary

Problems solved by technology

In case of cloudy, rainy, snowy, foggy weather, or continuous rainy and rainy seasons in southern my country, the lack of light in greenhouses and greenhouses will be more serious, and the light intensity and light time will be obviously insufficient, which will easily cause the seedlings to grow excessively.
[0004] The artificial light sources used in the agricultural field for a long time mainly include high-pressure sodium lamps, fluorescent lamps, metal halide lamps, incandescent lamps, etc. The outstanding disadvantages of these light sources are high energy consumption and high operating costs, and energy consumption accounts for 50% to 60% of the total operating cost. %

Method used

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  • Method for restraining plant vain growth through LED lamp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The method of suppressing excessive growth of plants through LED lights. The plants in this example are cucumber seedlings cultivated in an artificial climate box, and the cucumber seeds are "Jinchun No. 4". The specific application method is:

[0019] Put the seedling-raising substrate into a 72-hole hole tray, 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.

[0020] Set the day and night photoperiod as 10 / 14h, the temperature as 28°C / 20°C, and the humidity as 80%. At the end of the photoperiod, the cucumber seedlings in the treatment group were treated with red light, and the red light was irradiated every 4h with a light intensity of 50umol. / m 2 ·s -1 , the light time was 5min, and the red light treatment was stopped until the end of the dark period.

[0021] Water...

Embodiment 2

[0027] 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:

[0028] 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, 30 plants in each group, which were set as control group and treatment group.

[0029] Set the day and night photoperiod as 16 / 8h, 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 red light, and the red light was irradiated every 2h with a light intensity of 100umol. / m 2 ·s -1 , the light time was 10min, and the red light treatment was stopped until the end of the dark period.

[0030] Water and fertilizer management during seedling raising: water thoroughly once, and then pour water for the second time...

Embodiment 3

[0036] The plant in this embodiment is the melon seedling cultivated in the artificial climate box, and the melon seed is "Snow White", and the specific application method is:

[0037] Put the seedling-raising substrate into a 72-hole hole tray, 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.

[0038] Set the diurnal photoperiod as 10 / 14h, the temperature as 28°C / 20°C, and the humidity as 75%. At the end of the photoperiod, the melon seedlings in the treatment group were treated with red light, and the red light was irradiated every 2h with a light intensity of 10umol. / m 2 ·s -1 , the light time was 15min, and the red light treatment was stopped until the end of the dark period.

[0039] Water and fertilizer management during seedling raising: water thoroughly once, and then...

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Abstract

The invention discloses a method for restraining plant vain growth through an LED lamp. The method is implemented by using the LED red light to carry out multipoint interruption to the dark period of the plant growth every 1 to 4 hours; the used light intensity is 10 to 200 Mu mol/m<2>*s<-1>, and the lighting time is 5 to 20 minutes. The method for restraining plant vain growth through the LED red light has the advantages that the problem that young seedling vain growth is easily caused by poor lighting environment and hot and humid environment for growing seedlings in a facility greenhouse is solved; therefore, compared with the conventional method that the vain growth is restrained through a plant growth regulator, the method provided by the invention suits the purpose of develop green organic agriculture on one hand and provides a theoretical basis for the industrialized seedling production and the development of a plant factory on the other hand.

Description

1 technical field [0001] The invention belongs to the application of lighting products in the field of agriculture, and relates to the prevention and treatment of the excessive growth of plants, in particular to a method for inhibiting the excessive growth of vegetable seedlings by using LED lights in a facility greenhouse. 2 background technology [0002] Facility cultivation is a kind of controllable agriculture, also known as environment-regulated agriculture, which can reduce or prevent the hazards of disastrous climate and unfavorable environmental conditions to agricultural production under open field production conditions to varying degrees. my country is the country with the largest protected cultivation area in the world, and vegetable protected cultivation has become a pillar industry in agriculture in many provinces and cities and the main way for farmers to get rich. [0003] The light environment in the facility has a major impact on the growth of vegetables, an...

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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