阅读说明：本技术 一种裸根油樟幼树反季节双层袋栽方法 (Anti-season double-layer bag cultivation method for young bare-root cinnamomum camphora trees ) 是由 杨静 周书兰 卓开荣 于 2021-07-30 设计创作，主要内容包括：本发明公开了一种裸根油樟幼树反季节双层袋栽方法,包括如下内容：(1)用保水带从裸根幼树茎基部起缠绕至树高的一半；(2)用生根剂浸泡幼树跟头；(3)将完成(1)、(2)的裸根幼树装入双层种植袋的内袋中,内袋填入原生沙土,外袋装入配置土,对裸根幼树枝叶进行遮阳,对袋栽油樟幼树枝叶、茎秆喷淋湿润后运送至栽植地栽种后进行水份管理、日常养护管理直至成活。本发明方法能够有效提高反季节条件下移栽裸根油樟幼树的成活率,移栽后的油樟幼树长势好；本发明方法合理、操作简单,适用于大规模种植。(The invention discloses an out-of-season double-layer bag cultivation method for bare-root cinnamomum camphora saplings, which comprises the following steps: (1) winding the water-retaining tape from the base of the stem of the bare-rooted sapling to half of the height of the tree; (2) soaking the heels of the saplings with a rooting agent; (3) and (3) putting the bare-root saplings after the steps (1) and (2) into an inner bag of a double-layer planting bag, filling native sandy soil into the inner bag, putting an outer bag into configured soil, shading the branches and leaves of the bare-root saplings, spraying moisture on the branches and leaves and stems of the bag-planted cinnamomum camphora saplings, conveying the branches and leaves and stems to a planting field for planting, and performing moisture management and daily maintenance management until the bare-root saplings survive. The method can effectively improve the survival rate of the transplanted sassafras nudiflora saplings under the out-of-season condition, and the transplanted sassafras nudiflora saplings grow well; the method is reasonable, simple to operate and suitable for large-scale planting.)

1. An out-of-season double-layer bag cultivation method for young trees of cinnamomum camphora, which is characterized by comprising the following steps:

(1) winding the water-retaining tape from the base of the stem of the bare-rooted sapling to half of the height of the tree;

(2) soaking the heels of the saplings with a rooting agent;

(3) and (3) filling the bare-root saplings in the steps (1) and (2) into an inner bag of a double-layer planting bag, filling native sandy soil into the inner bag, filling configured soil into an outer bag, and shading the branches and leaves of the bare-root saplings.

2. The method according to claim 1, wherein the rooting agent is selected from one or more of naphthylacetic acid, indoleacetic acid, indolebutyric acid, and a compound sodium nitrophenolate solution;

preferably a naphthylacetic acid solution; further, the slurry was diluted 1200 times with naphthylacetic acid solution.

3. The method according to claim 1 or 2, wherein the time for soaking the rooting agent is 10-15 min.

4. The method according to claim 1, wherein the bare-rooted sapling in (3) is a sapling after pruning and thinning the leaves, and the method for pruning and thinning the leaves comprises: and (4) trimming root systems and excessive branches, and trimming 1/3-2/3 of leaves of the remaining branches.

5. The method of claim 1, wherein the outer bag of the double-layered planting bag is a degradable planting bag and the inner bag is a water-soluble film bag.

6. The method according to claim 1, wherein the thickness of the disposed soil in the outer bag is 5-10 cm; the loading mode of the prepared soil is that the soil around is higher than the middle soil.

7. The method of claim 1, wherein the deployment soil is a clay, a mixture of nursery soils, the clay: the mass ratio of the nursery land sand soil is 5.5-7.5: 2.5-4.5, preferably 6: 4.

8. The method according to any one of claims 1 to 7, further comprising:

(4) spraying and wetting branches, leaves and stems of the bag-planted cinnamomum camphora saplings and then conveying the saplings to a planting field;

(5) planting the sassafras seedlings and the double-layer planting bags into planting pits, cutting 5-10 cuts from the upper part of the inner bag to the bottom of the bag, and compacting the periphery of the outer bag by using soil;

(6) after planting, adding a layer of sunshade net, removing one layer after survival, and removing the other layer after 1-1.5 weeks;

(7) after planting, the pits are filled with enough water, and water mist is sprayed to the ground, and water management is carried out before survival. And (5) performing conventional management.

9. The method of claim 8, wherein the planting nest has a diameter of 1.2 to 1.7 times the diameter of the double-layered planting bag and a depth of 1 to 1.2 times the height of the planting bag; the diameter of the planting bag is 1.5 times of that of the double-layer planting bag, and the depth of the planting bag is 1.2 times of the height of the planting bag.

10. The method of claim 8, wherein dushu soil is bedded in the planting nest prior to planting the sapling; the thickness of the bedding soil is 1/5-2/5 of the planting bag.

Technical Field

The invention belongs to the technical field of tree planting, and particularly relates to an out-of-season double-layer bag planting method for young bare-root cinnamomum camphora trees.

Background

Cinnamomum camphora (with the scientific name of Camphor longipaniticulatum (Gamble) N. Chao ex H.W.Li) is evergreen arbor of Lauraceae, with height of 20 m, diameter at breast height of 50 cm, young fruit spherical, flowering in 5-6 months, and fruiting in 7-9 months. Mainly distributed in Sichuan China and grown in evergreen broad-leaved forests with the elevation of 600-2000 meters.

The shape of Cinnamomum camphora is similar to that of Cinnamomum camphora, and Cinnamomum camphora oil can be extracted from roots, branches, leaves and wood of Cinnamomum camphora. Testing oleum Camphora by Chengdu biological research institute of Chinese academy of sciences to obtain 26 components, wherein the main ingredients comprise 58.55% of oleanolic acid, 25.43% of terpineol, 14.16% of stewed alkene, Borneolum Syntheticum, Camphora, nerol, etc. The components are rare raw materials in the aspects of national defense, light industry, spice, medicine, food industry, military industry and the like. Yibin is the largest oil production place of the cinnamomum camphora in China, and the oil yield of the natural cinnamomum camphora spice accounts for 75 percent of the whole country and 90 percent of the whole province. The eucalyptus oil is refined into the Chinese eucalyptus oil which once sells more than 50 countries and regions such as Japan, Singapore, France, America and the like, and accounts for one third of the international trade volume. All countries in the export world belong to non-inspection commodities. Yibingxian county is used as Yibingn city cinnamomum camphora planting county, the cinnamomum camphora forest cinnamomum camphora base is built at present, more than 20 ten thousand mu, more than 55 medium-sized cinnamomum camphora fields with more than 100 mu are built, and 2000 tons of cinnamomum camphora oil are produced annually. And a unique 'natural cinnamomum camphora female parent garden' of 325 mu in China is built, 6500 more cinnamomum camphora female trees are selected, and Yibingcounty base becomes the largest cinnamomum camphora forest base in China.

Generally, bare-rooted saplings can be transplanted to survive only on the basis of measures such as proper season, soil, fine irrigation and the like. However, due to production requirements, transplanting in growing seasons is far from meeting requirements, and a large amount of cinnamomum camphora trees need to be transplanted out of season. However, the prior sassafras trees planted out of season need to be temporarily planted in a container in a proper season, or roots of the sassafras trees are cut off half to one year in advance, and a large number of fibrous roots grow, and then the sassafras trees can be lifted, dug and transplanted into planting pits to be planted. For the sapling cultivated by coarse sandy soil, the root system after seedling emergence has almost no native soil, and the sapling is difficult to survive if being transported for a long distance, especially if being planted out of season.

Disclosure of Invention

The invention aims to provide an anti-season double-layer bag cultivation method for bare-root cinnamomum camphora saplings, which can carry out anti-season transplantation without cutting roots and promoting fibrous roots or carrying soil balls containing seedling source soil, and the transplanted cinnamomum camphora saplings have high survival rate and good growth vigor.

In order to achieve the technical purpose, the technical scheme of the invention is as follows:

the invention provides an out-of-season double-layer bag cultivation method for bare-root cinnamomum camphora saplings, which comprises the following steps:

(1) winding the water-retaining tape from the base of the stem of the bare-rooted sapling to half of the height of the tree;

(2) soaking the heels of the saplings with a rooting agent;

(3) and (3) filling the bare-root saplings in the steps (1) and (2) into an inner bag of a double-layer planting bag, filling native sandy soil into the inner bag, filling configured soil into an outer bag, and shading the branches and leaves of the bare-root saplings.

In the present invention, (1) and (2) are not limited in order, and (1): winding the stem base of the bare-rooted sapling to half of the height of the tree by using a water-retaining tape, and then (2): soaking the heel of the young tree with a rooting agent, or firstly (2): soaking the heels of the young trees with a rooting agent, and then (1): the water-retaining tape is wound from the base of the stem of the bare-rooted sapling to half of the height of the tree.

Further, the rooting agent is selected from one or more of naphthylacetic acid, indoleacetic acid, indolebutyric acid and a compound sodium nitrophenolate solution;

preferably a naphthylacetic acid solution; further, the slurry was diluted 1200 times with naphthylacetic acid solution.

Further, the rooting agent is soaked for 10-15 min.

Further, the bare-root young tree in (3) is a young tree after pruning and thinning leaves, and the method for pruning and thinning leaves comprises the following steps: and (4) trimming root systems and excessive branches, and trimming 1/3-2/3 of leaves of the remaining branches.

Further, the outer bag in the double-layer planting bag is a degradable planting bag, the inner bag is a water-soluble film bag, the thickness is 25-70 μm, and the stability is as follows: hydrolyzing at 60 ℃ for 40-60 days at normal temperature.

Further, the thickness of the configured soil in the outer bag is 5-10 cm; the loading mode of the prepared soil is that the soil around is higher than the middle soil.

Further, the configured soil is mixed soil of clay and sandy soil of a nursery, wherein the clay: the mass ratio of the nursery land sand soil is 5.5-7.5: 2.5-4.5, preferably 6: 4.

The transplanting method further comprises the following steps:

(4) spraying and wetting branches, leaves and stems of the bag-planted cinnamomum camphora saplings and then conveying the saplings to a planting field;

(5) planting the sassafras seedlings and the double-layer planting bags into planting pits, cutting 5-10 cuts from the upper part of the inner bag to the bottom of the bag, and compacting the periphery of the outer bag by using soil;

(6) after planting, adding a layer of sunshade net, removing one layer after survival, and removing the other layer after 1-1.5 weeks;

(7) after planting, the pits are filled with enough water, and water mist is sprayed to the ground, and water management is carried out before survival. And (5) performing conventional management.

In the invention (5), the inner bag is filled with the native sand and soil of the seedling raising land, which is beneficial to maintaining the original state microbial system of the root, and the outer bag is synchronously filled with the configured soil to enhance the moisture retention capacity in the transportation process and the water retention and supply capacity after transplantation.

The normal transplanting season of the cinnamomum camphora is generally within 10 days before and after frost, while the out-of-season of the invention means seedling transplanting from a nursery land in summer, because the yippen nursery land is coarse sand soil, soil balls cannot be taken when seedlings are lifted, the carrying path is far, the air temperature is high, the cinnamomum camphora sapling is inevitably affected by serious water loss due to transpiration, and the survival rate of transplanting is difficult to guarantee. The method can solve the technical problems that when the saplings of the cinnamomum camphora in sandy soil are dug, the roots cannot carry soil, and the transplanting survival rate is low particularly in high-temperature seasons.

Furthermore, the diameter of the planting nest is 1.2-1.7 times of that of the double-layer planting bag, and the depth of the planting nest is 1-1.2 times of the height of the planting bag; the diameter of the planting bag is 1.5 times of that of the double-layer planting bag, and the depth of the planting bag is 1.2 times of the height of the planting bag.

Furthermore, dushu soil dug by digging the pit is padded in the planting pit before the young trees are planted; the thickness of the bedding soil is 1/5-2/5 of the planting bag.

The invention has the following beneficial effects:

(1) the invention can ensure that the root system is in a protection state by digging the sapling under the condition of out-of-season, supplies sufficient water, reduces the water transpiration of the overground part, balances the water in the sapling body and improves the survival rate of the planted sapling.

(2) The method comprehensively solves the adverse factors of the camphor tree saplings transplanted out of season, and the survival rate of the transplanted camphor tree saplings is as high as 96 percent and the camphor tree saplings grow well.

(3) The method is reasonable, simple to operate and suitable for large-scale planting.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

The out-of-season time of the invention is 6-8 months in summer.

Example 1

(1) Preparation of soil preparation and planting bag

Firstly, soil preparation: clay and nursery sandy soil are mixed according to the proportion of 6:4, fully and uniformly mixing to prepare soil, and improving the water retention and supply capacity.

Preparing a double-layer soil bag: preparing a degradable planting bag outer bag of 1-2 a, wherein the size of the degradable planting bag outer bag is equal to 3/4 which can normally form soil balls, the inner bag is a 'Saiyoupu' water-soluble film bag with the diameter smaller than 6cm of the outer bag, and the thickness of the hydrolysis bag is as follows: 25-70 μm, stability: hydrolyzing at 60 ℃ for 40-60 days at normal temperature.

(2) Soil packed in external bag

The prepared soil is filled in an external planting bag with the thickness of 8cm, and the shape of the periphery and the middle part are kept as high as possible.

(3) Seedling lifting, pruning and leaf thinning

Digging up the root head of the young tree, immediately trimming the root system according to the size of the inner bag of the planting bag, trimming the over-dense branches, and trimming the branch leaves 2/3. From the base of the stem, wrap up to half the height of the tree with a water-retaining tape. Soaking the root head in 1200 times diluted slurry of the Chinese light rooting agent liquid naphthylacetic acid for 12 min.

(4) Double-layer bag cultivation and double-layer covering sunshade net

After pruning and root soaking, the root head is immediately placed in the planting inner bag and placed in the middle of the outer bag, the inner bag is filled with the native sandy soil of the seedling lifting land, the configured soil is synchronously filled in the outer bag, and the inner bag and the outer bag are filled and compacted. Immediately, each branch and leaf is sleeved with a double-layer sunshade net.

(5) Vehicle-loading foliar spray

And (3) lifting the planted cinnamomum camphora saplings with the bags into a goods carriage to be placed in order, and filling clear water in a sprayer to spray the branches, leaves and stems of the bagged cinnamomum camphora saplings from top to bottom for moistening.

(6) Delivery

And (4) immediately transporting the bag-planted saplings away from the field after loading the bags, and spraying for 1 time for 2 hours until the bags are transported to a planting place if the bags are far away from the field.

(7) Planting

And (3) digging a planting pit with the size 1.5 times of that of the planting bag and the depth 1.2 times of that of the planting bag before lifting the seedlings in the planting field, and padding the shudi soil dug by digging the pit with the thickness 1/5 of the planting bag. After the cinnamomum camphora seedlings are transported to a planting field, immediately planting soil, directly placing the cinnamomum camphora seedlings in a nest without taking bags, and enabling the upper edge of the cinnamomum camphora seedlings to be flush with the original ground; the strip shears are inserted into the inner bag to shear 8 openings to the bottom, so that the micro-area environment of the original soil attached to the root system is close to the original land and can be communicated with the outer soil, and the outer bag is filled with soil dug in place and compacted.

(8) Post-planting management

The double-layer sunshade net on the tree is not taken off, and is divided into rows and then added with one layer to form a three-layer sunshade net for sun protection, if the three-layer sunshade net is intercropped with the rest trees which are more than one time higher than the tree, the sunshade net is not added until the trees survive, one layer of sunshade net is removed, and the next layer is removed at intervals of 1-1.5 weeks. Immediately after planting, the nest is filled with enough water, and water mist is sprayed to the ground. Before survival, the tree bags are irrigated with sufficient water for 1 time in sunny days or cloudy days and before 9 o' clock according to the change of soil humidity, generally 1-3 days; spraying leaf surface water twice before 9 am and 4 pm, so that water is managed until survival, generally for 1-1.5 months, and performing conventional management according to observation requirements.

Comparative example 1

Double-layer bag cultivation without winding moisture-keeping belt and shading

(1) Preparation of soil preparation and planting bag

Firstly, soil preparation: clay and nursery sandy soil are mixed according to the proportion of 6:4, fully and uniformly mixing to prepare soil, and improving the water retention and supply capacity.

Preparing a double-layer soil bag: preparing a degradable planting bag outer bag of 1-2 a, wherein the size of the degradable planting bag outer bag is equal to 3/4 which can normally form soil balls, the inner bag is a 'Saiyoupu' water-soluble film bag with the diameter smaller than 6cm of the outer bag, and the thickness of the hydrolysis bag is as follows: 25-70 μm, stability: hydrolyzing at 60 ℃ for 40-60 days at normal temperature.

(2) Soil packed in external bag

The prepared soil is filled in an external planting bag with the thickness of 8cm, and the shape of the periphery and the middle part are kept as high as possible.

(3) Seedling lifting, pruning and leaf thinning

Digging the root head of the young tree, immediately trimming the root system according to the size of the inner bag of the planting bag, trimming the over-dense branches, trimming the remained branch leaves 2/3, and soaking the root head in slurry diluted by 1200 times of the national strong root growth agent liquid naphthylacetic acid for 12 min.

(4) Double-layer bag cultivation

After pruning and root soaking, the root head is immediately placed in the planting inner bag and placed in the middle of the outer bag, the inner bag is filled with the native sandy soil of the seedling lifting land, the configured soil is synchronously filled in the outer bag, and the inner bag and the outer bag are filled and compacted.

(5) Vehicle-loading foliar spray

And (3) lifting the planted cinnamomum camphora saplings with the bags into a goods carriage to be placed in order, and filling clear water in a sprayer to spray the branches, leaves and stems of the bagged cinnamomum camphora saplings from top to bottom for moistening.

(6) Delivery

And (4) immediately transporting the bag-planted saplings away from the field after loading the bags, and spraying for 1 time for 2 hours until the bags are transported to a planting place if the bags are far away from the field.

(7) Planting

And (3) digging a planting pit with the size 1.5 times of that of the planting bag and the depth 1.2 times of that of the planting bag before lifting the seedlings in the planting field, and padding the shudi soil dug by digging the pit with the thickness 1/5 of the planting bag. After the cinnamomum camphora seedlings are transported to a planting field, immediately planting soil, directly placing the cinnamomum camphora seedlings in a nest without taking bags, and enabling the upper edge of the cinnamomum camphora seedlings to be flush with the original ground; the strip shears are inserted into the inner bag to shear 8 openings to the bottom, so that the micro-area environment of the original soil attached to the root system is close to the original land and can be communicated with the outer soil, and the outer bag is filled with soil dug in place and compacted.

(8) Post-planting management

Immediately after planting, the nest is filled with enough water, and water mist is sprayed to the ground. Before survival, the tree bags are irrigated with sufficient water for 1 time in sunny days or cloudy days and before 9 o' clock according to the change of soil humidity, generally 1-3 days; spraying leaf surface water twice before 9 am and 4 pm, so that water is managed until survival, generally for 1-1.5 months, and performing conventional management according to observation requirements.

Comparative example 2

After digging, the plants need not be planted with soil bags, but should be wrapped with moisture-keeping belts and sun-shading

(1) Seedling lifting, pruning and leaf thinning

Digging up the root head of the sapling, and immediately trimming the root system according to the size of the inner bag which is equivalent to the size of the planting bag; trimming off the excessive branches and cutting off the remained branch blades 2/3; winding the stem base to half of the tree height by using a water retention tape; soaking the root head in 1200 times diluted slurry of the Chinese light rooting agent liquid naphthylacetic acid for 12 min.

(2) Double-layer sunshade net

After pruning and root soaking, each branch and leaf is immediately sleeved with a double-layer sunshade net.

(3) Vehicle-loading foliar spray

Placing the planted cinnamomum camphora saplings into a goods van, placing the saplings neatly, and filling clear water in a sprayer to spray and moisten the branches, leaves and stems of the bag-planted cinnamomum camphora saplings from top to bottom.

(4) Delivery

And (4) immediately transporting the bag-planted saplings away from the field after loading the bags, and spraying for 1 time for 2 hours until the bags are transported to a planting place if the bags are far away from the field.

(5) Planting

In the planting field, planting pits are formed before the seedlings are lifted, and the thickness of the bedding soil is equal to 1/5 with planting bags in the same way as the method in the above example. After the cinnamomum camphora seedlings are transported to a planting field, soil is immediately planted, and the periphery of the root system is filled and compacted with soil dug in situ.

(6) Post-planting management

The double-layer sunshade net on the tree is not taken off, and is divided into rows and then added with one layer to form three-layer sunshade nets for sun protection, if the three-layer sunshade net is intercropped with the rest trees which are more than one time higher than the tree, the sunshade net is not added until the trees survive, one layer of sunshade net is removed, and the next layer is removed at intervals of 1-1.5 weeks. Immediately after planting, the nest is filled with enough water, and water mist is sprayed to the ground. Before survival, the tree bags are irrigated with sufficient water for 1 time in sunny days or cloudy days and before 9 o' clock according to the change of soil humidity, generally 1-3 days; spraying leaf surface water twice before 9 am and 4 pm, so that water is managed until survival, generally for 1-1.5 months, and performing conventional management according to observation requirements.

Comparative example 3

Not only does not need to be planted with soil bags, but also does not need to be wrapped with a moisture-keeping belt and does not need to be shaded

(1) Seedling lifting, pruning and leaf thinning

And (5) digging the root head, and pruning the root head of the sapling according to the size of the planting bag. One half was immediately pruned and the remaining leaves 2/3 were trimmed. Soaking the root head in 1200 times diluted slurry of the Chinese light rooting agent liquid naphthylacetic acid for 12 min.

(2) Vehicle-loading foliar spray

The cinnamomum camphora saplings are lifted to a goods compartment and placed in order, and the cinnamomum camphora saplings for bag cultivation are sprayed and moistened from top to bottom by a sprayer.

(3) Delivery

And loading the bag-planted saplings on a truck, immediately transporting away, and spraying for 1 time for 2 hours if the road is far until the bag-planted saplings are transported to a planting place.

(4) Planting

In the planting field, planting pits are formed before the seedlings are lifted, and the thickness of the bedding soil is equal to 1/5 with planting bags in the same way as the method in the above example. After the cinnamomum camphora seedlings are transported to a planting field, soil is immediately planted, and the periphery of the root system is filled and compacted with soil dug in situ.

(5) Post-planting management

Immediately after planting, the nest is filled with enough water, and water mist is sprayed to the ground. Before survival, the tree bags are irrigated with sufficient water for 1 time in sunny days or cloudy days and before 9 o' clock according to the change of soil humidity, generally 1-3 days; spraying leaf surface water twice before 9 am and 4 pm every day, and performing water management till survival, generally for 1-1.5 months, and performing conventional management according to observation requirements.

Analysis of test results

4 treatments were set for comparison, and carried out in 2019, 6 months and 28 days.

Example 1: the adverse factors of out-of-season are solved in an all-round way;

comparative example 1: the soil is matched for double-layer bag cultivation, and a moisture-preserving belt does not need to be wound and the sun is not shaded;

comparative example 2: after digging, the plants need not be planted with soil bags, but are wrapped with a moisture-keeping belt and shaded;

comparative example 3: not only does not need to be matched with soil for bag cultivation, but also does not need to be wound with a belt and does not need to be shaded.

TABLE 1 anti-season transplantation test record table for young trees of cinnamomum camphora

As can be seen from the above table, the difference of the treatment effects is large, and the treatment effects are sorted according to the survival rate:

in the embodiment 1, the growth state of the sapling is good, and the survival rate is ranked first;

comparative example 1 is a soil-matched bag cultivation, without winding a moisturizing tape and shading, the early wilting was severe, and the survival rate was ranked second;

comparative example 2 is the third place of digging up, without planting with soil bags, but with sun-shading, maintaining with water in vivo for several days in the early stage, no serious wilting, but outstanding water shortage in 1 month, and survival rate;

comparative example 3 shows that the soil is not matched with soil for bag cultivation, is not wound and shaded, the water retention and supply of the soil are insufficient, the overground part is seriously transpired, the soil is always withered due to water shortage, and the survival rate is lowest.

Therefore, soil preparation and digging are immediately carried out double-layer soil bag planting by using nursery land mother soil, the moisture retention belt, the double-layer sunshade net and the additional sunshade net after transplanting are utilized to form three layers of sunshade nets, which is the key for successful anti-season transplanting of the sassafras saplings, so that the roots of the sassafras saplings are ensured to have the micro-area environment of the original nursery land mother soil and the configured soil with good water retention and supply performance, and the moisture retention belt, the three layers of sunshade or the double-layer sunshade and higher original tree species are planted in a sleeving manner, so that the moisture is sprayed in real time.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.