Composition for cutting seedling raising of Guanggning camellia chekiangoleosa and cutting seedling raising method

Abstract

The invention provides a composition for cutting seedling raising of Guanggning camellia chekiangoleosa and a cutting seedling raising method, and belongs to the technical field of agriculture. The invention provides a composition for cutting seedling of Guanggning camellia chekiangoleosa. The composition comprises a rooting mixed solution and a rooting water-soluble fertilizer which are independently packaged. According to the growth characteristics of current-year branches of camellia chekiangoleosa, the composition for cutting seedling raising of camellia chekiangoleosa is reasonably prepared, the composition can promote cutting slips to root in advance and is high in rooting capacity, the cutting rooting rate of camellia chekiangoleosa is remarkably increased, the rooting rate can reach 100% after cutting is conducted for 100 days, and the transplanting survival rate reaches 95% or above.

Description

Technical Field

[0001] The present application belongs to the field of agricultural technology, and in particular relates to a composition and a method for growing seedlings by cuttings of Guangning safflower oil-tea tree. Background Art

[0002] Guangning safflower oil-tea tea, also known as Nanshan tea and large-fruited safflower oil-tea tea, is an evergreen tree belonging to the genus Camellia of the Theaceae family. Guangning safflower oil-tea tea has a tall tree body, beautiful tree shape, large fruit, bright red flower color, high oil content in seeds, fragrant oil, unsaturated fatty acids account for more than 89%, and is rich in squalene, sitosterol, vitamin E, tea polyphenols and other biologically active substances. The tea oil is of excellent quality. It is not only an excellent garden greening tree species for viewing flowers in early spring and fruits in autumn, but also an excellent woody edible oil tree species, with good economic and ecological benefits, and huge potential for comprehensive development and utilization.

[0003] At present, the bud grafting method is mainly used for the propagation of Guangning safflower oil-tea tree seedlings. However, since the spikelets of Guangning safflower oil-tea tree are relatively thick, the survival rate is low if they are grafted with ordinary oil-tea tree rootstocks, and the cost is relatively high if they are grafted with thicker rootstocks such as Guangning safflower oil-tea tree. Cutting propagation can not only maintain the excellent genetic characteristics of seedlings, but is also the simplest and most cost-effective breeding method. However, it is difficult for Guangning safflower oil-tea tree cuttings to take root. The branches with full buds are relatively lignified, have a weak ability to produce wounds, and have a low rooting rate. Summary of the invention

[0004] The purpose of the present application is to provide a composition and a method for cutting and seedling raising of Guangning safflower oil-tea tree, and the method of the present application has a high rooting rate.

[0005] The present application provides a composition for Guangning safflower oil-tea cutting seedling cultivation, comprising independently packaged rooting mixture and rooting water-soluble fertilizer; the rooting mixture uses water as a solvent and comprises components with the following concentrations: 500-800 mg / L ABT1 rooting powder, 100-300 mg / L indolebutyric acid, 300-400 mg / L amino acid trace element water-soluble fertilizer, 500 mg / L citric acid chelated iron, 500 mg / L vitamin C and 500 mg / L carbendazim; the formulation of the carbendazim is 50% wettable powder; the rooting water-soluble fertilizer uses water as a solvent and comprises components with the following concentrations: 300 mg / L CaCl2, 300 mg / L KNO3, 25 mg / L boric acid, 150 mg / L NH4H2PO4, 5 mg / L brassinolide, 10 mg / L folic acid and 500 mg / L citric acid chelated iron.

[0006] Preferably, it also includes an independently packaged seedling raising matrix; the seedling raising matrix includes red soil.

[0007] Preferably, the seedling medium comprises the following components in parts by weight: 94 parts of red soil, 5 parts of river sand, 0.8 parts of slow-release fertilizer and 0.2 parts of carbendazim; the formulation of the carbendazim is 50% wettable powder.

[0008] The present invention also provides application of the composition described in the above scheme in Guangning safflower oil-tea camellia cutting seedling cultivation.

[0009] The present invention also provides a method for growing seedlings of Guangning safflower oil-tea camellia by cutting, comprising the following steps:

[0010] Putting the cuttings into the rooting mixture in the composition of the above scheme and soaking them to obtain pretreated cuttings;

[0011] Dipping the base of the pretreated cuttings in mud and inserting them into a seedling medium, covering them with a film, and then cultivating them; the mud is obtained by mixing the rooting mixture and red soil;

[0012] The cultivation process includes water and fertilizer management; the water and fertilizer management includes watering and applying the rooting water-soluble fertilizer in the composition according to any one of claims 1 to 3.

[0013] Preferably, the method further comprises building a cutting seedling bed; after building the cutting seedling bed, it further comprises building a sunshade on the cutting seedling bed and laying a seedling medium in the cutting seedling bed, and covering the seedling medium with a layer of red soil; the seedling medium is the seedling medium in the composition according to claim 3.

[0014] Preferably, the cuttings are collected from the upper and middle parts of excellent individual plants of Guangning safflower oil-tea tea, from current year, semi-lignified branches with leaves; the cuttings have one node, one bud and half a leaf; the distance between the upper cut of the cutting and the bud is 0.2 to 0.3 cm; the base of the cutting is an oblique incision.

[0015] Preferably, the spacing between the cuttings is 5 to 10 cm; the row spacing between the cuttings is 10 to 15 cm; and the depth of the cuttings inserted into the soil is 2 / 3 of the length of the cuttings.

[0016] Preferably, the amount and frequency of watering are based on maintaining the moisture content of the seedling substrate in the film at 75% to 85%; the frequency of applying the rooting water-soluble fertilizer is once every 14 days; and the application includes spraying.

[0017] Preferably, the relative humidity of the cultivation environment is 80% to 85%; the temperature of the cultivation environment is 25 to 30°C.

[0018] The present application provides a composition for Guangning safflower oil-tea cutting seedling cultivation, including independently packaged rooting mixture and rooting water-soluble fertilizer; the rooting mixture includes the following components: ABT No. 1 rooting powder, indolebutyric acid, amino acid trace element water-soluble fertilizer, citric acid chelated iron, vitamin C and carbendazim; the rooting water-soluble fertilizer includes the following components: CaCl2, KNO3, boric acid, NH4H2PO4, brassinolide, folic acid and citric acid chelated iron. The present application reasonably formulates the composition for Guangning safflower oil-tea cutting seedling cultivation based on the growth characteristics of the current year's branches of Guangning safflower oil-tea, the composition can promote the rooting of cuttings in advance, has strong rooting ability, significantly improves the rooting rate of Guangning safflower oil-tea cutting, the rooting rate of cuttings after 100 days can reach 100%, and the transplant survival rate reaches more than 95%. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 Photos of preparing the land for the seedling bed of Guangning safflower oil-tea tree cuttings;

[0021] Figure 2 Photo of the cutting seedling bed being sprayed with 3% potassium permanganate aqueous solution and then covered with a film for disinfection;

[0022] Figure 3 These are photos of Guangning safflower tea cuttings;

[0023] Figure 4 These are photos of watering and moisture management between seedling beds after cuttings;

[0024] Figure 5 This is a photo of the growth of Guangning red flower oil tea 100 days after cutting;

[0025] Figure 6 These are photos of the rooting of Guangning red flower oil tea cuttings after half a year;

[0026] Figure 7 These are photos of the rooting of Guangning safflower oil-tea cuttings one year ago. DETAILED DESCRIPTION

[0027] The present application provides a composition for Guangning safflower oil-tea cutting seedling cultivation, comprising independently packaged rooting mixture and rooting water-soluble fertilizer; the rooting mixture uses water as a solvent and comprises components with the following concentrations: 500-800 mg / L ABT1 rooting powder, 100-300 mg / L indolebutyric acid, 300-400 mg / L amino acid trace element water-soluble fertilizer, 500 mg / L citric acid chelated iron, 500 mg / L vitamin C and 500 mg / L and 500 mg / L carbendazim; the formulation of the carbendazim is 50% wettable powder; the rooting water-soluble fertilizer uses water as a solvent and comprises components with the following concentrations: 300 mg / L CaCl2, 300 mg / L KNO3, 25 mg / L boric acid, 150 mg / L NH4H2PO4, 5 mg / L brassinolide, 10 mg / L folic acid and 500 mg / L citric acid chelated iron.

[0028] In the specific implementation process of this application, the rooting mixture is composed of the following concentrations of components: 500-800mg / L ABT1 rooting powder, 100-300mg / L indolebutyric acid, 300-400mg / L amino acid trace element water-soluble fertilizer, 500mg / L citric acid chelated iron, 500mg / L vitamin C and 500mg / L carbendazim; the dosage form of carbendazim is 50% wettable powder. The rooting mixture of this application not only includes growth hormone, but also contains an appropriate amount of amino acids, macroelements, trace elements, iron salts and plant hormones required for Guangning safflower oil tea cutting rooting, which can improve the rooting rate. At the same time, the vitamin C added to the rooting mixture has an antioxidant and fresh-keeping effect. Combined with other elements, it can improve the vitality of the cuttings, promote the differentiation of the cuttings root system, and further improve the rooting rate.

[0029] In one embodiment of the present application, the rooting mixture uses water as a solvent and is composed of the following components in the following concentrations: 600 mg / L ABT1 rooting powder, 200 mg / L indolebutyric acid, 300 mg / L amino acid trace element water-soluble fertilizer, 500 mg / L citric acid chelated iron, 500 mg / L vitamin C and 500 mg / L carbendazim; the formulation of the carbendazim is a 50% wettable powder.

[0030] In another embodiment of the present application, the rooting mixture uses water as a solvent and is composed of the following components in the following concentrations: 500 mg / L ABT1 rooting powder, 100 mg / L indolebutyric acid, 300 mg / L amino acid trace element water-soluble fertilizer, 500 mg / L citric acid chelated iron, 500 mg / L vitamin C and 500 mg / L carbendazim (50% wettable powder).

[0031] In the specific implementation process of this application, the rooting water-soluble fertilizer is composed of the following concentrations: 300mg / L CaCl2, 300mg / L KNO3, 25mg / L boric acid, 150mg / L NH4H2PO4, 5mg / L brassinolide, 10mg / L folic acid and 500mg / L citric acid chelated iron. The rooting water-soluble fertilizer of this application is added with growth regulators and phenolic substances such as folic acid, which can not only stimulate the growth of the root system of the cuttings, but also improve the fertilizer utilization rate of the root system, thereby improving the rooting ability and root quality of Guangning safflower oil tea cuttings, and improving the survival rate of cuttings.

[0032] In one embodiment of the present application, the rooting water-soluble fertilizer uses water as a solvent and contains the following components in concentrations: 300 mg / L CaCl2, 300 mg / L KNO3, 25 mg / L boric acid, 150 mg / L NH4H2PO4, 5 mg / L brassinolide, 10 mg / L folic acid and 500 mg / L citric acid chelated iron.

[0033] During the specific implementation of this application, the amino acid trace element water-soluble fertilizer is produced by Qingdao Shujun Fertilizer Co., Ltd. (wholly owned by South Korea), FARM, 50 grams per bottle, Fe+Zn≥100g / L, registration number: WLSRSD2021-03503.

[0034] In the specific implementation process of this application, the composition also includes an independently packaged seedling matrix; the seedling matrix includes red soil; red soil is heavy, highly acidic, and has little organic matter, which is conducive to the combination of cuttings and soil, prevents water loss, and improves the survival rate of cuttings.

[0035] In the specific implementation of this application, the seedling matrix includes the following components in parts by weight: 94 parts of red soil, 5 parts of river sand, 0.8 parts of slow-release fertilizer and 0.2 parts of carbendazim; the formulation of the carbendazim is 50% wettable powder; preferably, the seedling matrix is ​​composed of the following components in parts by weight: 94 parts of red soil, 5 parts of river sand, 0.8 parts of slow-release fertilizer and 0.2 parts of carbendazim; the formulation of the carbendazim is 50% wettable powder; the slow-release fertilizer is a general-purpose granular long-acting slow-release fertilizer.

[0036] The present application also provides the use of the composition described in the above scheme in Guangning safflower oil-tea tree cutting seedling cultivation.

[0037] The present application also provides a method for raising seedlings of Guangning safflower oil-tea tree by cutting, comprising the following steps:

[0038] Putting cuttings into the rooting mixture in the composition described in the above scheme and soaking them to obtain pretreated cuttings; wrapping the base of the pretreated cuttings with mud and then inserting them into a seedling medium, covering them with a film and then cultivating them; the mud is obtained by mixing the rooting mixture and red soil; the cultivation process includes water and fertilizer management; the water and fertilizer management includes watering and applying the rooting water-soluble fertilizer in the composition described in the above scheme.

[0039] During the specific implementation of this application, the method also includes building a cutting seedling bed; the site for building the cutting seedling bed is a site with convenient transportation, flat terrain, sufficient sunlight, deep soil, and convenient drainage and irrigation; the length of the cutting seedling bed is 10 to 20 meters; the width of the cutting seedling bed is 1 to 1.2 meters; the distance between adjacent cutting seedling beds is 30 to 35 cm; and sprinkler irrigation facilities are installed on the site for building the cutting seedling bed.

[0040] After the cutting seedling bed is built, the present application also includes building a sunshade on the cutting seedling bed and laying a seedling matrix in the cutting seedling bed, and covering the seedling matrix with a layer of red soil; the height of the sunshade is 2 to 3.5m; the shading degree of the sunshade is 60% to 80%; the seedling matrix is ​​the seedling matrix in the composition described in the above scheme; the thickness of the seedling matrix is ​​20 to 30cm; the thickness of the red soil covered on the seedling matrix is ​​8 to 10cm; after covering the seedling matrix with a layer of red soil, it also includes leveling and compacting the bed surface. Three days before the cutting, the present application also includes disinfecting the seedling matrix with a potassium permanganate aqueous solution with a mass volume concentration of 0.3%; after the disinfection, the present application also includes watering the disinfected seedling matrix until the moisture content of the seedling matrix is ​​65% to 75%.

[0041] During the specific implementation of the present application, the cuttings are collected from the middle and upper parts of the excellent individual plants of Guangning safflower oil-tea tea, which are semi-lignified and leaf-bearing branches of the current year; the collection period of the cuttings is preferably from April to May, and the cuttings in this period are semi-lignified cuttings of the current year; the leaf-bearing branches are leaf-bearing branches with full axillary buds and no diseases or insect pests; the cuttings are cuttings with one node, one bud and half a leaf; the distance between the upper cut of the cutting and the bud is 0.2 to 0.3 cm; the base of the cutting is an oblique incision; and the oblique incision is a smooth oblique incision.

[0042] The collected branches are cut into cuttings with one node, one bud and half a leaf, the cutting edge of the cutting is about 0.2 to 0.3 cm away from the bud, and the lower end is cut into a smooth oblique incision with a sharp knife.

[0043] After preparing the cutting seedling bed, preparing the substrate, collecting and processing the cuttings, the present application puts the cuttings into the rooting mixture in the composition described in the above scheme, and soaks them to obtain pre-treated cuttings. In the specific implementation process of the present application, the soaking time is 1 to 2 hours; the cuttings are all soaked in the rooting mixture.

[0044] After obtaining the pretreated cuttings, the present application wraps the base of the pretreated cuttings with mud and then inserts it into a seedling medium, covers it with a film, and then cultivates it; the mud is obtained by mixing the rooting mixture and red soil; in the specific implementation process of the present application, the method of wrapping the base of the cuttings with mud includes dipping the base of the pretreated cuttings in mud; the spacing of the cuttings is 5 to 10 cm; the row spacing of the cuttings is 10 to 15 cm; the depth of the cuttings inserted into the soil is 2 / 3 of the length of the cuttings; the buds and leaves of the cuttings are exposed above the ground, with the leaves facing upwards; the height of the covering film is 70 to 80 cm; the width of the covering film is 1 to 1.2 m.

[0045] After the cutting and before covering with film, the present application also includes immediately watering thoroughly; after covering with film, the present application also includes pressing soil around the covering film to seal it tightly.

[0046] During the cultivation process, the present application includes water and fertilizer management; the water and fertilizer management includes watering and applying the rooting water-soluble fertilizer in the composition described in the above scheme. During the specific implementation of the present application, the watering amount and frequency are based on maintaining the moisture content of the seedling matrix in the film at 75% to 85%; the frequency of applying the rooting water-soluble fertilizer is once every 14 days; the amount of rooting water-soluble fertilizer applied each time is 0.15 to 0.25 L / m 2 ; The application includes spraying. In the specific implementation process of this application, the relative humidity of the cultivation environment is 80% to 85%; the cultivation environment temperature is 25 to 30°C. In the cultivation process, this application also includes the application of carbendazim; the application method of carbendazim includes spraying; the carbendazim is 50% wettable powder; the application frequency of carbendazim is once every 7 days; the application amount each time is 0.2 to 0.5L / m 2 The application concentration of carbendazim is 300-500ppm. During the cultivation process, the application also includes moisturizing by automatic spraying; after 6 months of cultivation, the application also includes stopping the application of the rooting water-soluble fertilizer; when the seedlings are more than 30cm tall, the application also includes removing the sunshade net and managing water, fertilizer, diseases and pests according to conventional seedling cultivation methods until they are out of the nursery.

[0047] The cutting seedling raising method of the present application is simple and easy to implement, has low cost, high survival rate, few diseases, and can also accurately regulate the growth environment of the cutting seedlings.

[0048] In order to further illustrate the present application, a composition and a method for growing seedlings by cuttings of Guangning safflower oil-tea tree provided in the present application are described in detail below in combination with the drawings and examples, but they should not be construed as limiting the scope of protection of the present application.

[0049] Example 1

[0050] A kind of Guangning safflower oil-tea camellia cutting method

[0051] 1. Reagent preparation

[0052] 1) Seedling medium formula: The following components in percentage by weight are mixed and stirred: 94% red soil, 5% river sand, 0.8% general-purpose granular long-acting slow-release fertilizer and 0.2% carbendazim; the formulation of the carbendazim is 50% wettable powder.

[0053] 2) Rooting mixture formula: water is used as the solvent, and contains the following components in the following concentrations: 600 mg / L ABT No. 1 rooting powder, 200 mg / L indolebutyric acid, 300 mg / L amino acid trace element water-soluble fertilizer, 500 mg / L citric acid chelated iron, 500 mg / L vitamin C and 500 mg / L carbendazim (50% wettable powder).

[0054] 3) Rooting water-soluble fertilizer formula: water is used as the solvent, and contains the following components in the following concentrations: 300mg / L CaCl2, 300mg / L KNO3, 25mg / L boric acid, 150mg / L NH4H2PO4, 5mg / L brassinolide, 10mg / L folic acid and 500mg / L citric acid chelated iron.

[0055] 2. Cutting site and cutting seedling bed: Choose a site with convenient transportation, flat terrain, sufficient sunlight, deep soil, and convenient drainage and irrigation to build a cutting bed (see Figure 1 ). Install sprinkler irrigation facilities on the cutting site, build a sunshade with a height of 2.0-3.5m and a shade of 60%-80%; according to the site conditions, adjust the cutting seedling bed to a length and width of 10-20m×1-1.2m, with a spacing of 30-35cm between the seedling beds; lay a 30cm thick seedling medium in the cutting seedling bed, cover the seedling medium with a 10cm thick layer of red soil, and level and compact the bed surface; 3 days before cutting, disinfect the cutting seedling medium with a potassium permanganate aqueous solution with a mass volume concentration of 0.3% (see Figure 2 ).

[0056] 3. Collection and processing of cuttings: Collect the current year's semi-lignified, full-budded, disease-free and insect-free leaf branches from the middle and upper parts of the excellent individual plants of Guangning Red Flower Camellia oleifera in May and June of the Gregorian calendar. Wrap the collected branches with a wet towel to keep them moist and bring them back for cuttings immediately. Cut the collected branches into cuttings with one section, one bud and half a leaf. The cuttings should be about 0.2 to 0.3 cm away from the buds, and the lower end should be cut into a smooth oblique incision with a sharp knife; quickly put the treated cuttings into the rooting mixture and soak for 2 hours, and then cut them for cuttings.

[0057] 4. Cutting: When cutting, flatten and compact the sterilized seedling medium, water it thoroughly, so that the moisture content of the cutting medium is between 65% and 75%; then take a small amount of red soil and mix it with rooting mixture to make a slurry, dip the cuttings in the slurry and insert them upright into the watered seedling medium, with a spacing of 5 to 10 cm and a row spacing of 10 to 15 cm. The depth of the cuttings inserted into the soil is about 2 / 3 of the cuttings, with the buds and leaves of the cuttings exposed above the ground, and the leaves facing up. Immediately after cutting, water it thoroughly, cover it with a film, and seal it with soil around the film. Figure 3 .

[0058] 5. Carry out routine watering management after cutting: keep the moisture content of the seedling medium in the film at 75% to 85% (see Figure 4 ), spray carbendazim once every 7 days, and spray rooting water-soluble fertilizer once every 14 days; use automatic spraying to keep moisture, control the relative humidity in the greenhouse at 80%-85%, and the temperature at 25-30℃; stop spraying rooting water-soluble fertilizer after 6 months; when the seedlings are more than 30cm tall, remove the sunshade net, and manage water, fertilizer, diseases and pests according to conventional seedling raising methods until they are ready for transplanting. Figure 5 to Figure 7 .

[0059] After 6 months of cutting, the rooting rate and rooting situation of cuttings were counted, rooting rate (%) = number of rooted cuttings ÷ number of cuttings × 100%. According to statistics, the average root length of Guangning safflower oil-tea excellent single-plant cutting seedlings is 3.65cm and the rooting rate is 100%.

[0060] Example 2

[0061] A Guangning safflower oil-tea camellia cutting method, which is basically the same as the steps in Example 1, except that:

[0062] Formula of rooting mixture: water is used as solvent, and contains the following components: 500mg / L ABT No. 1 rooting powder, 100mg / L indole butyric acid, 300mg / L amino acid trace element water-soluble fertilizer, 500mg / L citric acid chelated iron, 500mg / L vitamin C and 500mg / L carbendazim (50% wettable powder). In step 3: quickly put the treated cuttings into the rooting mixture and soak for 1 hour, then cut the cuttings.

[0063] Six months after cuttings, statistics showed that the average root length of Guangning safflower oil-tea tree cuttings was 3.42cm and the rooting rate was 95.8%.

[0064] Comparative Example 1

[0065] A Guangning safflower oil-tea camellia cutting method is basically the same as the steps of Example 1, except that the rooting mixture does not contain 500 mg / L vitamin C.

[0066] Six months after cuttings, statistics showed that the average root length of Guangning safflower oil-tea tree cuttings was 3.21cm and the rooting rate was 91.4%.

[0067] Comparative Example 2

[0068] A Guangning safflower oil-tea cutting method is basically the same as the steps of Example 1, except that the rooting water-soluble fertilizer does not contain folic acid. After 6 months of cutting, according to statistics, the average root length of the excellent single-plant cutting seedlings of Guangning safflower oil-tea is 3.27 cm and the rooting rate is 93.1%.

[0069] Comparative Example 3

[0070] A Guangning safflower oil-tea cutting method is basically the same as the steps of Example 1, except that the rooting water-soluble fertilizer does not contain amino acid water-soluble fertilizer. After 6 months of cutting, according to statistics, the average root length of excellent single-plant cutting seedlings of Guangning safflower oil-tea is 3.09 cm and the rooting rate is 91.7%.

[0071] Comparative Example 4

[0072] A Guangning safflower oil-tea cutting method is basically the same as the steps of Example 1, except that the composition and ratio of the seedling medium are different. The matrix formula used is obtained by mixing and mixing the components by weight percentage: 74% red soil, 25% river sand, 0.8% general granular long-acting slow-release fertilizer and 0.2% carbendazim powder. The average root length and rooting rate are not as good as those of the present application. After 6 months of cutting, according to statistics, the average root length of the excellent single-plant cutting seedlings of Guangning safflower oil-tea is 2.35 cm and the rooting rate is 64.6%.

[0073] Comparative Example 5

[0074] A Guangning safflower oil-tea cutting method is basically the same as the steps of Example 1, except that the composition and ratio of the seedling medium are different, and the matrix formula used is obtained by mixing and mixing the components in weight percentage: 74% red soil, 15% river sand, 10% peat soil, 0.8% general granular long-acting slow-release fertilizer and 0.2% carbendazim powder, and the average root length and rooting rate are not as good as the present application. After 6 months of cutting, according to statistics, the average root length of the excellent single-plant cutting seedlings of Guangning safflower oil-tea is 3.18cm and the rooting rate is 82.4%.

[0075] Comparative Example 6

[0076] A Guangning safflower oil-tea cutting method is basically the same as the steps of Example 1, except that the cuttings are collected in November to December, and after 6 months of cutting, statistics show that the average root length of Guangning safflower oil-tea cuttings is 1.21 cm and the rooting rate is 90.22%. Cuttings in winter have low temperatures, slow rooting time, few roots, and underdeveloped root systems.

[0077] Comparative Example 7

[0078] The Guangning safflower oil-tea seedling rootstock grafting method requires the preparation of rootstocks, which increases the cost of rootstocks and labor costs, and increases the cost of seedling cultivation. The cost of cultivating a one-year-old Guangning safflower oil-tea grafted seedling is about 1.5 to 2.0 yuan, while the cost of cultivating a one-year-old Guangning safflower oil-tea cutting seedling is about 0.5 to 1.0 yuan.

[0079] In summary, this application improves the survival rate of Guangning safflower oil-tea cuttings through improved cutting site preparation, cutting substrate screening, fringe selection, special treatment of cuttings, cutting methods, and comprehensive management of water and fertilizer management after cuttings, effectively solving the defects of Guangning safflower oil-tea cuttings, such as difficult rooting, low survival rate, and slow growth rate. This application improves the operation methods of each link of Guangning safflower oil-tea cutting technology, which is simple to operate, low in cost, well-developed seedling root system, high rooting rate, thick leaves, and basically no diseases and insect pests. The seedling culture medium is mainly red soil, with slow-release fertilizers and fungicides added, which can consolidate the roots of Guangning safflower oil-tea, and has good bactericidal properties, greatly improving the growth rate and survival rate of seedlings, and improving the survival rate of cutting seedlings.

[0080] Although the above-mentioned embodiment provides a detailed description of the present application, it is only a part of the embodiments of the present application, not all of the embodiments. People can also obtain other embodiments based on this embodiment without creativity, and these embodiments all fall within the scope of protection of the present application.

Claims

1. A composition for Guangning safflower oil-tea cutting seedling cultivation, characterized in that: Includes individually packaged rooting mix and rooting water-soluble fertilizer; The rooting mixture uses water as a solvent and includes the following components in concentrations: 500-800 mg / L ABT No. 1 rooting powder, 100-300 mg / L indolebutyric acid, 300-400 mg / L amino acid trace element water-soluble fertilizer, 500 mg / L citric acid chelated iron, 500 mg / L vitamin C and 500 mg / L carbendazim; the carbendazim is in the form of a 50% wettable powder; The rooting water-soluble fertilizer uses water as a solvent and comprises components of the following concentrations: 300 mg / L CaCl2, 300 mg / L KNO3, 25 mg / L boric acid, 150 mg / L NH4H2PO4, 5 mg / L brassinolide, 10 mg / L folic acid and 500 mg / L citric acid chelated iron.

2. The composition according to claim 1, characterized in that Also included is an independently packaged seedling raising matrix; the seedling raising matrix includes red soil.

3. The composition according to claim 2, characterized in that The seedling culture medium comprises the following components in parts by weight: 94 parts of red soil, 5 parts of river sand, 0.8 parts of slow-release fertilizer and 0.2 parts of carbendazim; the formulation of the carbendazim is 50% wettable powder.

4. Use of the composition according to any one of claims 1 to 3 in Guangning safflower oil-tea camellia cutting seedling cultivation.

5. A method for raising seedlings of Guangning safflower oil-tea tree by cutting, characterized in that: The following steps are involved: placing the cuttings into the rooting mixture in the composition according to any one of claims 1 to 3, and soaking them to obtain pretreated cuttings; Dipping the base of the pretreated cuttings in mud and inserting them into a seedling medium, covering them with a film, and then cultivating them; the mud is obtained by mixing the rooting mixture and red soil; The cultivation process includes water and fertilizer management; the water and fertilizer management includes watering and applying the rooting water-soluble fertilizer in the composition according to any one of claims 1 to 3.

6. The method according to claim 5, characterized in that The method also includes building a cutting seedling bed; after building the cutting seedling bed, it also includes building a sunshade on the cutting seedling bed and laying a seedling matrix in the cutting seedling bed, and covering the seedling matrix with a layer of red soil; the seedling matrix is ​​the seedling matrix in the composition according to claim 3.

7. The method according to claim 5, characterized in that The cuttings are collected from the middle and upper parts of excellent Guangning safflower oil-tea tea individual plants, which are semi-lignified branches with leaves and are grown in the current year; the cuttings have one node, one bud and half a leaf; the distance between the upper cut of the cutting and the bud is 0.2 to 0.3 cm; and the base of the cutting is an oblique cut.

8. The method according to claim 5, characterized in that The spacing between the cuttings is 5 to 10 cm; the row spacing between the cuttings is 10 to 15 cm; and the depth of the cuttings inserted into the soil is 2 / 3 of the length of the cuttings.

9. The method according to claim 5, characterized in that The watering amount and frequency are based on maintaining the moisture content of the seedling substrate in the film at 75% to 85%; the frequency of applying the rooting water-soluble fertilizer is once every 14 days; and the application includes spraying.

10. The method according to claim 5, characterized in that The relative humidity of the cultivation environment is 80% to 85%; the temperature of the cultivation environment is 25 to 30°C.

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