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
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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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