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Laser seedling raising method and rice cultivation method based on the same

A laser and rice technology, which is applied in the field of laser seedling cultivation and rice cultivation, can solve the problems of high energy consumption, poor effect, and low efficiency, and achieve the effects of reducing energy consumption ratio, improving light utilization rate, and significant energy saving effect

Active Publication Date: 2022-07-19
浙江长芯光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the limitations of the existing methods of supplementing light for plants, such as high energy consumption, low efficiency and poor effect, most of them can only meet the problems of maintaining normal growth of plants under no-light or low-light conditions

Method used

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  • Laser seedling raising method and rice cultivation method based on the same
  • Laser seedling raising method and rice cultivation method based on the same
  • Laser seedling raising method and rice cultivation method based on the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A method for cultivating rice, specifically comprising the following steps:

[0055] 1) Arrange the laser light source in the greenhouse for cultivating seedlings, at a height of 4 meters from the surface of the rice seedling substrate. The surface of the seedlings is raised in a plane. The irradiation area of ​​each lamp is about 60 square meters. Adjust the projection angle of the light source to make the light field evenly distributed;

[0056] 2) After the rice seeds (Daohuaxiang No. 1) emerged, use blue light with a wavelength of 450 nm and a red laser light with a wavelength of 660 nm, adjust the red-blue ratio to 4:1, and the initial laser light intensity of 0.1 μmol m -2 ·s -1 , when the ambient light intensity is lower than 200 μmol m -2 ·s -1 When the laser light source is turned on, the supplementary light is 4 hours per day, and the supplementary light is not more than 14 hours per day on cloudy days; after that, the light intensity increases by 0.1 μmol m...

Embodiment 2

[0070] A method for cultivating rice, specifically comprising the following steps:

[0071] 1) Arrange the laser light source in the three-dimensional planting rack of the plant factory. Each planting rack is divided into three layers, the height between layers is 60cm, and the light source is 50cm away from the surface of the rice seedling substrate. Make the light field distribution uniform;

[0072] 2) After the rice seeds (Jihong No. 6) emerged, the blue light source with the central wavelength of 455 nm and the red laser light source with the central wavelength of 665 nm were selected, the red-blue ratio was adjusted to 0.5:1, and the laser light intensity was 0.8 μmol m -2 ·s -1 , when the ambient light intensity is lower than 200 μmol m -2 ·s -1 When the laser light source is turned on, the supplementary light is 4 hours a day, and the supplementary light is not more than 14 hours a day on cloudy days;

[0073] 3) From the three-leaf stage to before transplanting, t...

Embodiment 3

[0084] A method for cultivating rice, specifically comprising the following steps:

[0085] The laser light source is arranged above the rice seedling tray in the greenhouse where the seedlings are cultivated, at a height of 60cm from the surface of the seedling substrate. The surface of the seedlings is raised in a plane. The irradiation area of ​​each lamp is about 1 square meter, and the projection angle of the light source is adjusted to make the light field evenly distributed;

[0086] 2) After the rice seeds (Yongyou 12) emerged, the blue light with a wavelength of 450 nm and a red laser with a wavelength of 665 nm were selected, the red-blue ratio was adjusted to 3:1, and the laser light intensity was 0.7 μmol m -2 ·s -1 , when the ambient light intensity is lower than 200 μmol m -2 ·s -1 When the laser light source is turned on, the supplementary light is 4 hours a day, and the supplementary light is not more than 14 hours a day on cloudy days;

[0087] 3) From the ...

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Abstract

The invention belongs to the technical field of planting, and in particular relates to a laser seedling breeding method and a rice breeding method based on the method. The method includes: irradiating the rice in the seedling growth stage; the laser seedling raising light field is composed of a blue laser and a red laser, the blue laser has a wavelength of 445-455 nm, and the red laser has a wavelength of 655-455 nm. 665 nm, the light intensity of the laser seedling light field is 0.1-2.0 μmol m ‑2 ·s ‑1 , the single-day irradiation time is less than or equal to 16 h; the light intensity ratio of the red and blue lasers is (0.5~4): 1 after the rice seedlings emerge to the three-leaf stage; the rice is from the three-leaf stage to the seedlings For transplanting, the intensity ratio of red and blue laser light is (2~5):1. The invention reduces the energy consumption ratio and improves the light utilization rate through the laser light supplement, and can save more than 60% of energy in the field of agricultural planting supplement light, resulting in a very significant energy saving effect.

Description

technical field [0001] The invention belongs to the technical field of planting, and in particular relates to a laser seedling breeding method and a rice breeding method based on the method. Background technique [0002] Rice seedling raising is an important link in rice planting, which is directly related to the quality and yield of rice, and is the premise of high rice yield. The process of raising seedlings is inseparable from light, temperature, humidity, air, soil and other elements, among which light is one of the most difficult elements to control. Light is the only source of energy for plant photosynthesis, and periodic changes in light intensity, light quality and light have a profound impact on the growth and development of crops. Among them, the radiation in the wavelength range of 300-800 nm is the physiologically effective radiation of plants, and the radiation in the wavelength range of 380-710 nm is the photosynthetically effective radiation of plants. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G7/04A01G22/22
CPCA01G7/04A01G22/22Y02P60/14
Inventor 杨明来马强李成龙王辉卞婷王英梁雪梅杜如愿其他发明人请求不公开姓名
Owner 浙江长芯光电科技有限公司
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