A method of artificial light source plant factory hydroponic lettuce
An artificial light source and hydroponics technology, applied in the fields of botanical equipment and methods, cultivation, soilless cultivation, etc., can solve the problems of low water transpiration from lettuce leaves, poor air mobility, and burnt edges of lettuce, so as to improve the yield of lettuce and the Quality, efficient production, reduced irritation effect
Active Publication Date: 2019-06-28
北京天禾欣锦慧农业科技有限公司
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Problems solved by technology
Lettuce is the most widely planted vegetable in artificial light plant factories, but the closed environment inside the artificial light plant factory results in poor air flow, and the lettuce leaves have very little water transpiration, which leads to burnt edges of lettuce
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[0023] The present invention will be further described in detail below in conjunction with examples, but the embodiments of the present invention are not limited thereto.
[0024] Materials and Methods:
[0025] The experiment was completed at the Guangdong Optical Agricultural Engineering Technology Research Center from December 2017 to January 2018. The test vegetable is Italian lettuce. The seedling raising frame used is six layers, each layer is 183×55×25 cm in length, width and height, and the length, width and height of the nutrient solution tank is 90×60×6 cm; the cultivation frame is four layers, and the length, width and height are 183×60 cm. ×45cm, the length, width and height of the nutrient solution tank are 90×56×8cm. The nutrient solution is mixed with macroelements and trace elements, among which the macroelements are Huanong leafy vegetable B formula, and the trace elements are general formulas, including H 3 BO 3 : 2.86mg / L, MnSO 4 ·H 2 O: 1.54mg / L, ZnSO ...
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The invention belongs to the field of water culture planting in plant factories, and discloses a method for water culture of lettuce by adopting an artificial light source in a plant factory. The method comprises the following steps: performing germination accelerating on seeds of the lettuce, placing the seeds having white sprouts to a wet sponge block, and keeping the sponge block wet by using clear water; when cotyledons are flatly spread, putting the sponge block into a field planting cup, moving the field planting cup and the sponge block onto a seedling raising frame, performing water culture by using a nutrient solution, performing continuous illumination for 12 h every day by using a full-spectrum lamp with effective photosynthetic radiation of 260 [mu]mol*m<-2>*s<-1>, and performing continuous darkness for 12 h every day; and when seedlings on the seedling raising frame grow three true leaves, setting different air blowing modes of the seedling cultivating frame, performing water culture by using a nutrient solution, performing continuous illumination for 20 h every day by using a full-spectrum lamp with effective photosynthetic radiation of 230 [mu]mol*m<-2>*s<-1>, and performing continuous darkness for 4 h every day, wherein the air blowing modes include air blowing during illumination and air blowing during darkness. The method provided by the invention effectivelysolves the problem of tipburn of the lettuce and improves the yield and quality of the lettuce.
Description
technical field [0001] The invention belongs to the field of hydroponic planting in plant factories, in particular to a method for hydroponic lettuce in plant factories with artificial light sources. Background technique [0002] Due to the growth of the world's population, less and less arable land, people's requirements for living standards are getting higher and higher, and the emphasis on food safety is increasing. In recent years, plant factories have developed rapidly. [0003] The artificial light source plant factory can achieve continuous production throughout the year without being affected by the external environment, artificially adjusting indoor light, temperature, humidity, carbon dioxide concentration, etc. Lettuce is the most widely planted vegetable in artificial light plant factories, but the closed environment inside the artificial light plant factory results in poor air flow, and the lettuce leaves have very little water transpiration, which leads to burn...
Claims
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IPC IPC(8): A01G31/00
CPCA01G31/00
Inventor 庄健乐袁俊强刘应亮雷炳富许晓凯
Owner 北京天禾欣锦慧农业科技有限公司