CN202354170U

CN202354170U - Wintering protecting greenhouse for guaranteeing tea quality

Info

Publication number: CN202354170U
Application number: CN2011203832196U
Authority: CN
Inventors: 李晓东; 张云伟; 王漪
Original assignee: Qingdao Tea & Flower Workstation
Current assignee: Qingdao Tea & Flower Workstation
Priority date: 2011-10-11
Filing date: 2011-10-11
Publication date: 2012-08-01
Anticipated expiration: 2021-10-11

Abstract

The utility model provides a wintering protecting greenhouse for guaranteeing tea quality. The non-woven fabric replaces the plastic film and is used for the tea tree wintering protecting greenhouse in the northern area. Compared with the prior art, the utility model has the characteristics that: firstly, the wintering protecting greenhouse for guaranteeing tea quality has a good heat-preservation effect so that the tea tree can live through the winter safely and has a good wind resisting effect so that the tea tree cannot be hurt by the dry and cold wind and the growth of the tea tree cannot be affected; secondly, the influence of the plastic thin film in the prior art to the fragrance and the taste of the tea leaves is eliminated, and the non-woven fabric has no peculiar smell, can replace the non-woven fabric and is used as the arc-shaped greenhouse covering material, thus the tea leaves can not absorb the peculiar smell, and the fragrance and the taste of the tea leaves can not be affected; thirdly, with the characteristic of good breathability, the non-woven fabric is good for the exchange of air inside and outside the wintering protecting greenhouse, the wintering protecting greenhouse is more beneficial to the growth of the tea leaves than the totally-sealed plastic-covered greenhouse and the exchange of heat inside and outside the wintering protecting greenhouse, and the wintering protecting greenhouse is free from high temperature so that the tea leaves can not be burnt; and fourthly, the wintering protecting greenhouse is low in cost because the cost of the non-woven fabric is lower than that of the plastic film.

Description

Ensure the protection greenhouse of surviving the winter of tea leaf quality

Technical field

The utility model relates to plant planting and uses the greenhouse canopy, specifically, relates to a kind of protection greenhouse of surviving the winter of planting tea tree.

Background technology

Nineteen fifty-nine " Nan Chabei draws " success develops 52 years so far history.But the ubiquitous difficult problem of surviving the winter of northern tea is never effectively solved.Naturally under the not protection state, almost all to suffer freeze injury in various degree every year.Special time, even dead strain total crop failure.

The degree of freeze injury takes place in tea tree, outside the Pass directly having with the temperature height, with low temperature duration, wind speed, freeze-off time substantial connection is arranged also.

Bise is to influence tea tree one of key factor of freeze injury takes place.When bise blows, make ICW evaporate the too fast physiology water outlet in the leaf texture that causes, red Jiao of bud-leaf, skeleton branch is withered.(Jiang Changjun, Li Yeyun, Wei Chaoling, the tealeaves circular, 2009,31 (3), 105-108, tea tree freeze injury mitigation keeps away calamity key technology and application).

In the north, the normal climate condition, water foot and survive the winter under the situation of water, generally through setting up the stalk air partition, on tea is fluffy, covering 75% fescue, to ensure the tea tree safe overwintering.But set up the stalk air partition and cover fescue construction trouble, be difficult for tying up.When wind-force is big, dispel easily, and be difficult to collect.

Green house is effective measures that ensure the tea tree safe overwintering, can ensure tea tree 100% safe overwintering.Though it is but green house has solved the freeze injury problem, bigger to the tea leaf quality influence.Under the long-term situation about covering, tealeaves absorbs the peculiar smell of plastic film, influences tea aroma and flavour.The reason of plastic film peculiar smell: mostly at present tealeaves is low density polyethylene (LDPE) (LDPE) film if surviving the winter that booth generally adopts.Pure polyethylene (PE) particle is nontoxic.From with the contacted liquid of polyethylene from high pressure process can isolate a small amount of low molecular compound, harmless to health in general, but have peculiar smell.The film, pipe, the injection-molded item that are made by the gas phase low-pressure polyethylene can make water and test(ing) medium have to be lower than 1.5 grades aroma and flavor.(Cai Wufeng is translated from Soviet Union's " poly-wide goods material toxicity ", external plastics, 9 (1991) 1 >.

The agricultural PE film that has can add aromatic amine and amphyl etc. in process of production as additive, plasticizer; The harm of plasticizer is tentatively verified at present; It can disturb human endocrine; Influence genital system, can harm people genoid, cardiovascular, liver and urinary system are also had very major injury.This type film uses in the process of greenhouse canopy can decompose the many harmful substances of volatilization.If be used for the production of tealeaves facility, can be absorbed by tealeaves, influence tea aroma and flavour, and even human body is worked the mischief.

Summary of the invention

The utility model provides a kind of tea tree that ensures tea leaf quality protection greenhouse of surviving the winter, and it can solve the peculiar smell that tealeaves that prior art exists absorbs plastic film, influences the problem of tea aroma and flavour.

In order to solve the problems of the technologies described above, the technical scheme of the utility model is, a kind of tea tree that ensures tea leaf quality protection greenhouse of surviving the winter comprises covering, and said covering is a nonwoven.

Said greenhouse is the greenhouse big arch shed.

Said greenhouse is the little shed in greenhouse.

Said greenhouse is a shed in the greenhouse.

The utility model greenhouse is with the characteristics of nonwoven:

The three big fibers that are used for nonwoven production are: polypropylene, polyester and viscose rayon.

Polypropylene is the polymer of nontoxic, odorless, the tasteless high crystallization of milky.The chemical analysis of polyester fiber still is more stable, and characteristics are powerful higher, wear-resisting, high temperature resistant, are difficult for fold.

Polypropylene and polyester be safety relatively comparatively speaking, and the monomer and the auxiliary agent that just have thermal cracking after the high temperature contact about through 350 ℃ are overflowed.

Viscose rayon is to be the cellulose fiber of raw material production with cotton or other native fiber, and its chemical composition is similar with cotton with characteristics.

So nonwoven is compared with LDPE has higher safety, and free from extraneous odour.

The utility model adopts nonwoven to replace plastic film as the survive the winter cladding material of shed of protection tealeaves, shows to have following characteristics through experiment:

1, guarantees that tea-leaf safety survives the winter.On tealeaves, replace plastic film as the shed cladding material with nonwoven, the one, but play heat insulation effect preferably, though the slightly too late plastic film of its heat insulation effect, but can be to guarantee the tea tree safe overwintering; The 2nd, can play protection effect preferably, reduce the harm of bise to growth of tea plant.

2, eliminate the influence of plastic film to tea aroma and flavour.Nonwoven is compared with LDPE has higher safety, and free from extraneous odour.On tealeaves, replace plastic film as the shed cladding material, can avoid under the long-term situation about covering of plastic film, tealeaves absorbs the peculiar smell of plastic film, influences tea aroma and flavour.

3, utilize the characteristics of nonwoven good permeability, the one, be beneficial to the inside and outside gas exchange of booth, more help tea growth with complete airtight the comparing of plastic tunnel; The 2nd, be beneficial to the inside and outside exchange heat of booth, can avoid high temperature in the canopy, make tealeaves avoid burning.

4, cost is low, and the cost of nonwoven is far below the cost of common plastic film.

5, nonwoven is more suitable for being used to the protective materials of surviving the winter in middle or small shed in northern tea district.

The main purpose of tea tree button canopy is for safe overwintering, is not purpose with vernalization, raising the output.Adopt the protection of surviving the winter of warm plastic tunnel of winter, big arch shed, the tea grower does not remove canopy often whole spring, the leaf inferior quality of picking tea-leaves, and have the peculiar smell of plastic film.The semi-transparency of nonwoven can impel the tea grower in time to remove canopy, thereby guarantees the tea raw material quality.

6, nonwoven also is suitable for big arch shed in northern tea district and is used to the protective materials of surviving the winter.

7, Tea Production does not need too intense light irradiation, also shelters from heat or light through trees such as plantation ginkgo, the four seasons are red in the tea place that has, or shelters from heat or light with the sunshade net and to take production high-quality tealeaves.Utilize nonwoven to do the big arch shed protective materials of surviving the winter, the one, the protection that can be used for surviving the winter, the 2nd, can bring into play its effect of sheltering from heat or light, production high-quality tealeaves in the protection uncovered ventilation in back of surviving the winter.

Description of drawings

Fig. 1 is a kind of structural representation that ensures the protection greenhouse embodiment 1 that survives the winter of tea leaf quality of the utility model;

1, little shed; 1-1, nonwoven; 1-2, bracing frame;

Fig. 2 is a kind of structural representation that ensures the protection greenhouse embodiment 2 that survives the winter of tea leaf quality of the utility model;

2, big arch shed; 2-1, nonwoven; 2-2, bracing frame.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail.

A kind of protection greenhouse of surviving the winter that ensures tea leaf quality, the protection greenhouse can be the version of large, medium and small shed at least.

Embodiment 1

Referring to Fig. 1, little shed 1 comprises bracing frame 1-2 and covering, and its covering adopts nonwoven 1-1.

Embodiment 2

Referring to Fig. 2, big arch shed 2 comprises bracing frame 2-2 and covering, and its covering adopts nonwoven 2-1.

The utility model substitutes the contradiction that shed used plastic film in greenhouse can solve tea tree safe overwintering and tealeaves absorption peculiar smell effectively with nonwoven.Its protection effect is superior between common plastics booth and " air partition+cover grass " protection, and tea leaf quality also is higher than the protection of common plastics booth far away.

In implementation process, it should be noted that the nonwoven gas permeability is stronger, moisture is prone to evaporation in the canopy, before the covering, the one, must water the sufficient water of surviving the winter, the 2nd, the canopy planted agent takes supporting ground to cover water conservation technology such as grass.

Technical scheme by the utility model can know that the utility model compared with prior art has the following advantages and good effect:

1, guarantees that tea-leaf safety survives the winter.The one, can play heat insulation effect preferably, guarantee the tea tree safe overwintering; The 2nd, can play protection effect preferably, reduce the harm of bise to growth of tea plant.

2, eliminated of the influence of the plastic film of prior art to tea aroma and flavour.The nonwoven free from extraneous odour replaces plastic film as the shed cladding material on tealeaves, can avoid tealeaves to absorb peculiar smell, influences tea aroma and flavour.

3, the characteristics of nonwoven good permeability, the one, be beneficial to the inside and outside gas exchange of booth, compare with airtight plastic tunnel fully and more help tea growth; The 2nd, be beneficial to the inside and outside exchange heat of booth, avoid high temperature in the canopy, make tealeaves avoid burning.

4, cost is low.The cost of nonwoven is far below the cost of common plastic film.

5, nonwoven is more suitable for being used to the protective materials of surviving the winter in middle or small shed in northern tea district.The semi-transparency of nonwoven can impel the tea grower after protection is survived the winter in completion, in time to remove canopy, thereby guarantees the tea raw material quality.

6, nonwoven also is suitable for big arch shed in northern tea district and is used to the protective materials of surviving the winter.Can bring into play its effect of sheltering from heat or light, production high-quality tealeaves in the protection uncovered ventilation in back of surviving the winter.

The above only is the preferred embodiment of the utility model, is not to be the restriction of the utility model being made other form, and any professional and technical personnel of being familiar with possibly utilize the technology contents of above-mentioned announcement to change or be modified as the equivalent embodiment of equivalent variations.All the utility model technical scheme contents that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belong to the protection domain of the utility model technical scheme according to the technical spirit of the utility model.

Claims

1. the protection greenhouse of surviving the winter that ensures tea leaf quality comprises covering, and it is characterized in that: said covering is a nonwoven.