CN105432268A

CN105432268A - Light control method for tea leaf cultivation

Info

Publication number: CN105432268A
Application number: CN201410441737.7A
Authority: CN
Inventors: 夏澍
Original assignee: Guizhou Chajiandao Agricultural Development Co Ltd
Current assignee: Guizhou Chajiandao Agricultural Development Co Ltd
Priority date: 2014-09-02
Filing date: 2014-09-02
Publication date: 2016-03-30

Abstract

The invention relates to a light control method for tea leaf cultivation and belongs to the technical field of bioengineering. In a tea leaf cultivation process, by taking a semiconductor light emitting diode LED plant illuminating system as a light source, illumination is supplemented after sunset or under a condition of cloudy and rainy weather, and by adopting a mode of interrupted illumination, an LED lamp generating diffused light is used for implementation. The method provided by the invention aims to accelerate effective growth of tea leaves, improve the quality of tea leaves, bring picking and marketing of spring tea forward and increase the yearly output of tea leaves by supplementing artificial illumination. The content of biological and chemical substances in the tea leaves produced by the method is relatively greatly increased, wherein the content of aqueous extract is greater than 43%, the content of amino acids exceeds 4%, the content of tea polyphenols is higher than 23.5%, the content of caffeine is increased to 4%, and the phenol ammonia ratio is less than 6.0. The accumulated temperature in early spring and winter exceeds 800 DEG C, the annual yield of tea leaves is doubled, and the ratio of high-grade tea is increased by 50% compared with that in the prior art.

Description

The light regulate and control method that a kind of tealeaves is cultivated

Technical field

The present invention relates to technical field of bioengineering, the light regulate and control method of particularly a kind of tealeaves cultivation.

Background technology

Tealeaves cultivation has a long history, type of rearing is till now based on traditional farming practices, or to live at the mercy of the elements, improve tea quality very difficult, generally all undertaken by the method for excessive fertilization, but often add the concentration of the soil solution, make tea root absorb water and mineral salt generation difficulty, cause acrial part here to wither.

Tao Han they (1989) etc. has found that different light medium can affect the content of the specific inclusion of tealeaves, as indexs such as Tea Polyphenols, amino acid, caffeine, water extractions, and significant difference.Cheng Qikun (1982) finds that long diffused light irradiates, or long-term intermittent irradiated Tea, the growth of leaf bud can be accelerated, make blade-shaped large and thin, internode is long, and the food value of leaf is soft, make theanine accumulate to the tea tip simultaneously, the water content of the tea tip increases, and it is good to hold tender property, and after the Tea Processing cultivated under such condition, profile is attractive in appearance especially.

Some Tea planting area rainy weather in early spring is many, and temperature continues on the low side, causes accumulated temperature on the low side, makes spring tea exploitation and Time To Market postpone ten days to one month than other Chan Cha districts, has had a strong impact on market value; And tealeaves profile is affected, leaf and bud head can diminish, and overall price is low by about 15%; Also usually occurred frost and snowfall in recent years, and caused tea place, some areas first round to sprout tea shoot frost bitten and freeze to death, economic loss nearly hundred million yuan is just caused with Anshun in 2014 the south of Guizhou Province of being only Guizhou Province therefore.

Summary of the invention

The object of the invention is to by supplementary artificial lighting, accelerate effective growth of tealeaves, improve the quality of tealeaves, shift to an earlier date harvesting and the listing of spring tea, increase the annual production of tealeaves.

In order to achieve the above object, the light regulate and control method that a kind of tealeaves designed by the present invention is cultivated, realizes the accumulation of specific content material when tealeaves is grown, the cultivation of tealeaves profile and color and luster, the quickening of tea growth speed.

Formation of the present invention: the light regulate and control method that a kind of tealeaves is cultivated, it is characterized in that: in the process that tealeaves is cultivated, using semiconductor light-emitting-diode LED plant illumination system as light source, supplementary light under post sunset or rainy weather condition, and adopt the mode of interrupted illuminating, adopt the LED lamp producing diffused light to implement.

Adopt secondary colour plant lamp to irradiate, according to the difference of local tea variety and quality requirement, its reddish blue spectrum ratio, between 1:2 ~ 5:1, is aided with a small amount of purple light 5-10%.

According to the difference of local tea variety and quality requirement, illuminance from 200LX to 500LX, the light and shade ratio 1:0 ~ 1:5 of periodicity of illumination, light application time 2 ~ 6 hours.

Adopt direct light type LED lamp or scatter-type LED lamp, direct light type light fixture light filling efficiency is high, and scatter-type light fixture can the LED light line of dispersed high directivity, more diffused light is produced, strengthens photosynthesis in the prolonging light time and can improve tea leaf quality again simultaneously.

Compared with the prior art, advantage of the present invention to improve tea leaf quality, increases tea yield.The tealeaves that daylight of comparing is cultivated, contained by the tealeaves that this method is produced, biochemical content improves a lot, and wherein water extraction is greater than 43%, and amino acid is more than 4%, and Tea Polyphenols is higher than 23.5%, and caffeine brings up to 4%, and phenol ammonia ratio is less than 6.0.The accumulated temperature in the early spring, winter is more than 800 DEG C, and annual tea yield improves 1 times, and its medium-to-high grade tea proportion improves 50% than original.

Embodiment

Embodiment one:

1. adopt secondary colour plant lamp to irradiate, its reddish blue spectrum ratio is between 1:3, and purple light accounts for 10%;

2. illuminance is from 300LX, the light and shade ratio 2:1 of periodicity of illumination, light application time 4 hours;

3. adopt direct light type LED lamp;

4. according to the light filling scheme that this example is implemented, the Amino Acids in Tea content 4.40% of harvesting, water extraction 44.32%, the green profit of green tea color and luster made, tea inlet thick aroma and good taste.

Embodiment two:

1. adopt secondary colour plant lamp to irradiate, its reddish blue spectrum ratio is between 1:2, and purple light accounts for 10%;

2. illuminance is from 300LX, the light and shade ratio 1:2 of periodicity of illumination, light application time 4 hours;

3. adopt scatter-type LED lamp;

4., according to the light filling scheme that this example is implemented, the tealeaves polyphenol content 24.10% of harvesting, caffeine 4.30%, the green tea tool made removing toxic substances and anticancer effect, mouthfeel has fresh refreshing taste.

Claims

1. the light regulate and control method of a tealeaves cultivation, it is characterized in that: in the process that tealeaves is cultivated, using semiconductor light-emitting-diode LED plant illumination system as light source, supplementary light under post sunset or rainy weather condition, and adopt the mode of interrupted illuminating, adopt the LED lamp producing diffused light to implement.

2. the light regulate and control method of a kind of tealeaves cultivation according to claim 1, it is characterized in that: adopt secondary colour plant lamp to irradiate, according to the difference of local tea variety and quality requirement, its reddish blue spectrum ratio, between 1:2 ~ 5:1, is aided with a small amount of purple light 5-10%.

3. the light regulate and control method cultivated of a kind of tealeaves according to claim 1, is characterized in that: according to the difference of local tea variety and quality requirement, illuminance from 200LX to 500LX, the light and shade ratio 1:0 ~ 1:5 of periodicity of illumination, light application time 2 ~ 6 hours.

4. the light regulate and control method of a kind of tealeaves cultivation according to claim 1, it is characterized in that: adopt direct light type LED lamp or scatter-type LED lamp, direct light type light fixture light filling efficiency is high, and scatter-type light fixture can the LED light line of dispersed high directivity, more diffused light is produced, strengthens photosynthesis in the prolonging light time and can improve tea leaf quality again simultaneously.