Method for increasing content of Vc of leaf vegetables inside plant factory

A technology for leafy vegetables and vegetables, applied to the field of increasing the Vc content of leafy vegetables in plant factories, can solve the problems of restricting popularization and application, low comprehensive income, and high operating costs, and achieve high safety, low calorific value, and long service life long effect

Inactive Publication Date: 2018-10-30
JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the light source of the artificial light utilization plant factory is an artificial light source, the energy consumptio...

Method used

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  • Method for increasing content of Vc of leaf vegetables inside plant factory
  • Method for increasing content of Vc of leaf vegetables inside plant factory
  • Method for increasing content of Vc of leaf vegetables inside plant factory

Examples

Experimental program
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Effect test

Embodiment 1

[0025] (1) Soak the green leaf lettuce seeds to accelerate germination, sow them in 300-hole seedling trays containing sponge blocks, and place them in a seedling cultivation room for cultivation. The ambient temperature is 20-22°C, the relative humidity is 60-70%, CO 2 The concentration is 380~420μmol·mol -1 , the light intensity is 340~360μmol·m -2 ·s -1 , the light time is 12h·d -1 , the light source is a cold fluorescent lamp.

[0026] (2) After 3 weeks of seedling cultivation, select seedlings with consistent growth and transplant them on the three-dimensional cultivation rack of the artificial light utilization type plant factory, the ambient temperature is 25 / 20°C (day / night), the relative humidity is 60-70%, CO 2 The concentration is 800~1000μmol·mol -1 , with an illumination intensity of 200 μmol m -2 ·s -1 , the light time is 16h·d -1 , the light source is white LED. The nutrient solution is 1 / 2 times the Japanese garden test formula nutrient solution, using ...

Embodiment 2

[0034] (1) Soak the romaine lettuce seeds to accelerate germination, sow them in 300-hole seedling trays containing sponge blocks, and place them in a seedling cultivation room for cultivation. The ambient temperature is 20-22°C, the relative humidity is 60-70%, CO 2 The concentration is 380~420μmol·mol -1 , the light intensity is 340~360μmol·m -2 ·s -1 , the light time is 12h·d -1 , the light source is a cold fluorescent lamp.

[0035] (2) After 3 weeks of seedling cultivation, select seedlings with consistent growth and transplant them on the three-dimensional cultivation rack of the artificial light utilization type plant factory, the ambient temperature is 25 / 20°C (day / night), the relative humidity is 60-70%, CO 2 The concentration is 800~1000μmol·mol -1 , with an illumination intensity of 200 μmol m -2 ·s -1 , the light time is 16h·d -1 , the light source is white LED. The nutrient solution is 1 / 2 times the Japanese garden test formula nutrient solution, using a d...

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Abstract

The invention discloses a method for increasing the content of Vc of leaf vegetables inside a plant factory. The method comprises the steps that sprouting and seedling growing are performed; cultivated vegetable seedlings are transplanted to a cultivation frame of the plant factory to be cultivated, top illumination is performed 6-8 d before cultivation, then, top illumination and continuous bottom light supplementing are performed synchronously, and harvesting is performed 7-10 d after bottom light supplementing; the irradiation direction of top illumination is from the top of lettuce to thebottom; during continuous bottom light supplementing, the irradiation direction of illumination is from the bottom of lettuce to the top, the illumination intensity is 40-60 micro mol*m<-2>*s<-1>, andthe illumination time is 24 h/d. The illumination method for an existing artificial light utilization type plant factory is improved, by adopting the mode that continuous light supplementing is performed from the bottoms of plants at the later plant growth period, the content of Vc in plant leaves is increased, and the product quality is improved.

Description

technical field [0001] The invention belongs to the technical field of vegetable cultivation and quality control, and in particular relates to a method for increasing the Vc content of leafy vegetables in a plant factory. Background technique [0002] Plant factory production system is a resource-intensive production mode, which can greatly improve the utilization rate, output rate and economic benefits per unit of land (Liu Wenke et al., 2014, Chinese Journal of Lighting Engineering, 25(4):50-53). According to different sources of light, plant factories are divided into three categories: artificial light utilization type, sunlight utilization type, and combination of sunlight and artificial light type. Artificial light-utilizing plant factories are not restricted by geographical and natural conditions, and can precisely control the environment in the facility to provide the most suitable growth conditions for plants. Plants have good growth, high yield, high quality, short ...

Claims

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Application Information

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IPC IPC(8): A01G31/00A01G7/04
CPCA01G7/045A01G31/00Y02P60/14
Inventor 张更颜志明矢守航杨宝林董慧王祺邰智凡
Owner JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY
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