Special fertilizer for drynaria fortunei planting and preparation method thereof

Abstract

The invention discloses a special fertilizer for drynaria fortunei planting and a preparation method thereof. The special fertilizer comprises a leaf fertilizer for drynaria fortunei spraying and an organic biological enzyme water-soluble fertilizer for drynaria fortunei rhizome, the spraying leaf fertilizer is prepared from the following raw materials: potassium nitrate, ammonium nitrate, magnesium sulfate heptahydrate, monopotassium phosphate, calcium chloride dihydrate, manganese sulfate tetrahydrate, zinc sulfate heptahydrate, boric acid, potassium iodide, sodium molybdate dihydrate, copper sulfate pentahydrate, cobalt chloride hexahydrate, ferrous sulfate heptahydrate and ethylenediaminetetraacetic acid; the organic biological enzyme water-soluble fertilizer is prepared from the following raw materials: rapeseed cakes, melons and fruits, plant ash, soybean meal, industrial brown sugar, a microbial agent, proteolytic enzyme and cellulase. The leaf fertilizer is used for spraying leaf surfaces of drynaria fortunei seedlings, the organic biological enzyme water-soluble fertilizer is used for irrigating rhizomes of drynaria fortunei, growth of the drynaria fortunei seedlings can be effectively promoted, and it can be calculated according to the stem weight that the fresh weight of the drynaria fortunei seedlings per mu can reach 1252.4 kg or above under the condition that the seedlings are 10000 per mu.

Description

Technical Field

[0001] This invention relates to the field of fertilizer technology, and in particular to a special fertilizer for the cultivation of oak fern and its preparation method. Background Technology

[0002] Drynaria roosii, the original plant of the traditional Chinese medicine Drynaria fortunei, is a perennial epiphytic herb belonging to the genus Drynaria in the family Polypodiaceae. Its rhizome is used medicinally, possessing various effects and functions, primarily affecting the liver and kidney meridians. It is warm in nature and bitter in taste, mainly used to tonify the kidneys and strengthen bones, replenish kidney essence, and strengthen tendons and bones. It is suitable for various symptoms caused by kidney deficiency, with its core effects including tonifying the kidneys and strengthening bones, and promoting blood circulation and healing injuries. In traditional Chinese medicine clinical practice, it is widely used for strengthening teeth, improving hearing, stopping diarrhea, improving osteoporosis, promoting blood circulation and healing injuries, treating traumatic injuries, rheumatic pain, alopecia areata, and molluscum contagiosum. Currently, the annual usage is in the hundreds to thousands of tons of dried product, representing a substantial quantity.

[0003] Currently, the medicinal material *Drynaria fortunei*, a type of fern, is sourced entirely from wild resources. Years of harvesting have led to the gradual depletion of these wild resources. To meet medicinal needs, artificial propagation is imperative, and this is still in its early stages. Currently, there is no fertilizer specifically designed for the artificial cultivation of *Drynaria fortunei*. The fertilizers currently used in cultivation are mostly ordinary compound fertilizers, which cause significant seedling death, and for many varieties, their efficacy is poor, failing to meet the needs of *Drynaria fortunei* cultivation and industrial development. Therefore, this paper proposes a fertilizer specifically for *Drynaria fortunei* cultivation to address the aforementioned problems. Summary of the Invention

[0004] The purpose of this application is to provide a special fertilizer for the cultivation of oak fern and its preparation method, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application provides the following technical solution: A special fertilizer for growing oak fern, the special fertilizer comprising a foliar fertilizer for spraying oak fern and an organic bio-enzyme water-soluble fertilizer for the root and stem of oak fern; The raw materials for the foliar fertilizer, calculated by weight, are prepared from 2-25 parts potassium nitrate, 2-20 parts ammonium nitrate, 2-5 parts magnesium sulfate heptahydrate, 2-5 parts potassium dihydrogen phosphate, 4-8 parts calcium chloride dihydrate, 2-5 parts manganese sulfate tetrahydrate, 0.5-2 parts zinc sulfate heptahydrate, 0.5-2 parts boric acid, 0.05-0.5 parts potassium iodide, 0.01-0.2 parts sodium molybdate dihydrate, 0.01-0.2 parts copper sulfate pentahydrate, 0.01-0.2 parts cobalt chloride hexahydrate, 2-5 parts ferrous sulfate heptahydrate, and 3-8 parts ethylenediaminetetraacetic acid. The raw materials of the organic bio-enzyme water-soluble fertilizer, calculated by weight, are prepared from 20-40 parts rapeseed cake, 40-60 parts melon and fruit, 10-40 parts wood ash, 10-40 parts soybean meal, 10-20 parts industrial brown sugar, 2-6 parts microbial inoculant, 0.3-0.7 parts proteolytic enzyme, and 0.3-0.7 parts cellulase.

[0006] The raw materials for the aforementioned foliar fertilizer, calculated by weight, are prepared from 12.5 parts potassium nitrate, 10 parts ammonium nitrate, 3.5 parts magnesium sulfate heptahydrate, 3.5 parts potassium dihydrogen phosphate, 6 parts calcium chloride dihydrate, 3.5 parts manganese sulfate tetrahydrate, 1 part zinc sulfate heptahydrate, 1 part boric acid, 0.25 parts potassium iodide, 0.1 parts sodium molybdate dihydrate, 0.1 parts copper sulfate pentahydrate, 0.1 parts cobalt chloride hexahydrate, 3.5 parts ferrous sulfate heptahydrate, and 5 parts ethylenediaminetetraacetic acid.

[0007] The raw materials of the aforementioned organic bio-enzyme water-soluble fertilizer, calculated by weight, consist of 30 parts rapeseed cake, 50 parts melon and fruit, 25 parts wood ash, 25 parts soybean meal, 15 parts industrial brown sugar, 4 parts microbial inoculant, 0.5 parts proteolytic enzyme, and 0.5 parts cellulase.

[0008] The aforementioned fruits are one or more of pumpkin, watermelon, or winter melon, and the moisture content of the fruits is ≤20%, the moisture content of the rapeseed cake is ≤20%, and the moisture content of the soybean meal is ≤20%.

[0009] The aforementioned microbial inoculant is 2-6 parts.

[0010] The aforementioned rapeseed cake can be replaced by camellia oil cake or tung oil cake.

[0011] The preparation method of the aforementioned special fertilizer for oak fern cultivation is carried out according to the following steps: S1: Weigh each component of the raw material according to the formula ratio of the spray fertilizer, add it to 80-120 times the amount of water in 3-6 equal amounts, and stir continuously until no sediment is produced. The resulting liquid is the spray foliar fertilizer. S2: Spread soybean meal oil and fruits out to dry until the moisture content is ≤20%, and set aside; S3: First, spread the rapeseed cake out to dry until the moisture content is ≤20%, then weigh the rapeseed cake and set it aside; S4: Weigh each component raw material according to the raw material formula ratio of water-soluble fertilizer. First, mix rapeseed cake, melon and fruit, wood ash, soybean meal and industrial brown sugar, then add water to just submerge them. Then add microbial inoculant and stir to mix. After mixing evenly, seal and ferment. The fermentation temperature is 20-50℃ and the fermentation time is 15-30 days to obtain organic biological enzyme fertilizer. S5: Take organic bio-enzyme fertilizer, add water, add protein hydrolysate and cellulase, seal and ferment at 20-50 ℃ for 15-30 days, then filter and separate the solid and liquid components to remove impurities, and dilute with 40-60 times the amount of water to obtain organic bio-enzyme water-soluble fertilizer.

[0012] In step S1 above, each component raw material is weighed according to the raw material formula ratio of the spray fertilizer, and added to 100 times the amount of water in 4-5 equal amounts. The mixture is stirred continuously until no sediment is produced. The resulting liquid is the liquid spray foliar fertilizer.

[0013] In step S3 above, the fermentation temperature is 20-50℃ and the fermentation time is 15-30 days.

[0014] In step S4 above, dilute with 50 times the amount of water.

[0015] The beneficial effects of this invention are: 1. In this invention, a foliar fertilizer prepared by mixing potassium nitrate, ammonium nitrate, magnesium sulfate heptahydrate, potassium dihydrogen phosphate, calcium chloride dihydrate, manganese sulfate tetrahydrate, zinc sulfate heptahydrate, boric acid, potassium iodide, sodium molybdate dihydrate, copper sulfate pentahydrate, cobalt chloride hexahydrate, ferrous sulfate heptahydrate, and sodium EDTA in a certain proportion is sprayed onto oak fern during cultivation. This not only keeps the oak fern leaves moist and prevents them from drying out, but also allows the oak fern leaves to absorb nutrients, essential nutrients, and trace elements, thus promoting the growth of oak fern.

[0016] 2. Organic bio-enzyme water-soluble fertilizer, made by fermenting rapeseed cake, melons and fruits, wood ash, soybean meal, industrial brown sugar, microbial agents, and hydrolytic enzymes, is added directly to the planting water used for oak fern cultivation. This directly applies nutrients to the roots of the oak fern, allowing them to absorb sufficient nutrients for better growth. Compared to traditional fertilizers, this method of applying fertilizer by spraying and water-soluble fertilizer to the leaves and roots of the oak fern promotes its growth.

[0017] 3. The rapeseed cake, melons and fruits, wood ash, soybean meal, industrial brown sugar, microbial agents, and hydrolytic enzymes in water-soluble fertilizer produce a large amount of organic matter after fermentation, which can improve fertilizer efficiency. At the same time, wood ash can increase the pH value, enhance the resistance of cultivated crops, and also has a certain bactericidal effect, which can remove harmful bacteria in rapeseed cake, melons and fruits, and soybean meal, as well as some harmful bacteria in planting water, thereby improving fertilizer efficiency, enabling the fertilizer to take effect quickly, improving fertilizer quality, and promoting the growth of oak ferns. The entire preparation process is simple, does not involve high-requirement preparation conditions, is easy to operate, and is more practical. Attached Figure Description

[0018] Figure 1 A schematic diagram illustrating the preparation process of fertilizer specifically for oak fern cultivation; Figure 2Example and comparative fertilization support diagram of oak fern. Detailed Implementation

[0019] The present invention will be specifically described below through embodiments. It should be noted that the following embodiments are only used to further illustrate the present invention and should not be construed as limiting the scope of protection of the present invention. Unless otherwise specified, the reagents used in the present invention are all commercially available.

[0020] The microbial agent was purchased from Bayannur Deyuan Fertilizer Co., Ltd. It is a granular crystalline microbial agent with an effective live bacteria count of >200 million / g.

[0021] Example 1: 1. Special fertilizers for oak fern cultivation include foliar fertilizer for spraying oak fern leaves and organic bio-enzyme water-soluble fertilizer for the root and stem of oak fern. The specific raw material components are as follows: (1) The raw materials for spraying foliar fertilizer are calculated by weight as follows: 12.5 parts potassium nitrate, 10 parts ammonium nitrate, 3.5 parts magnesium sulfate heptahydrate, 3.5 parts potassium dihydrogen phosphate, 6 parts calcium chloride dihydrate, 3.5 parts manganese sulfate tetrahydrate, 1 part zinc sulfate heptahydrate, 1 part boric acid, 0.25 parts potassium iodide, 0.1 parts sodium molybdate dihydrate, 0.1 parts copper sulfate pentahydrate, 0.1 parts cobalt chloride hexahydrate, 3.5 parts ferrous sulfate heptahydrate, and 5 parts ethylenediaminetetraacetic acid. (2) The raw materials of the organic bio-enzyme water-soluble fertilizer are calculated by weight as follows: 30 parts rapeseed cake, 50 parts melon and fruit, 25 parts wood ash, 25 parts soybean meal, 15 parts industrial brown sugar, 4 parts microbial agent, 0.5 parts protein hydrolysate and 0.5 parts cellulase.

[0022] 2. Preparation process: S1: Weigh each component of the raw material according to the formula ratio of the spray fertilizer, add it to 100 times the amount of water in 5 equal amounts, and stir continuously until no sediment is produced. The resulting liquid is the spray foliar fertilizer. S2: Spread soybean meal oil and fruits out to dry until the moisture content is ≤20%, and set aside; S3: First, spread the rapeseed cake out to dry until the moisture content is ≤20%, then weigh the rapeseed cake and set it aside; S4: Weigh each component raw material according to the raw material formula ratio of water-soluble fertilizer. First, mix rapeseed cake, melon and fruit, wood ash, soybean meal and industrial brown sugar, then add water to just submerge them. Then add microbial inoculant and stir to mix. After mixing evenly, seal and ferment. The fermentation temperature is 20-40℃ and the fermentation time is 30 days to obtain organic biological enzyme fertilizer. S5: Take organic bio-enzyme fertilizer, add water to submerge the organic bio-enzyme fertilizer, then add protein hydrolysate and cellulase, seal and ferment for 15 days at 25℃, then filter the solid and liquid to remove impurities, and dilute with 50 times the amount of water to obtain organic bio-enzyme water-soluble fertilizer.

[0023] Example 2: 1. Special fertilizers for oak fern cultivation include foliar fertilizer for spraying oak fern and water-soluble organic bio-enzyme fertilizer for the rhizomes of oak fern. The specific raw material components are as follows: (1) The raw materials for spraying foliar fertilizer are calculated by weight as follows: 2 parts potassium nitrate, 2 parts ammonium nitrate, 2 parts magnesium sulfate heptahydrate, 2 parts potassium dihydrogen phosphate, 4 parts calcium chloride dihydrate, 2 parts manganese sulfate tetrahydrate, 0.5 parts zinc sulfate heptahydrate, 0.5 parts boric acid, 0.05 parts potassium iodide, 0.01 parts sodium molybdate dihydrate, 0.01 parts copper sulfate pentahydrate, 0.01 parts cobalt chloride hexahydrate, 2 parts ferrous sulfate heptahydrate, and 3 parts disodium EDTA. (2) The raw materials of the organic bio-enzyme water-soluble fertilizer are calculated by weight as follows: 20 parts rapeseed cake, 40 parts pumpkin, 10 parts wood ash, 10 parts soybean meal, 10 parts industrial brown sugar, 2 parts biological bacteria, 0.7 parts protein hydrolysate and 0.3 parts cellulase.

[0024] 2. Preparation process: S1: Weigh each component of the raw material according to the formula ratio of the spray fertilizer, add it to 80 times the amount of water in 3 equal amounts, and stir continuously until no sediment is produced. The resulting liquid is the spray foliar fertilizer. S2: Spread soybean meal oil and fruits out to dry until the moisture content is ≤20%, and set aside; S3: First, spread the rapeseed cake out to dry until the moisture content is ≤20%, then weigh the rapeseed cake and set it aside; S4: Weigh each component raw material according to the raw material formula ratio of water-soluble fertilizer. First, mix rapeseed cake, melon and fruit, wood ash, soybean meal and industrial brown sugar, then add water to just submerge them. Then add microbial inoculant and stir to mix evenly. Then, seal and ferment. The fermentation temperature is 20-40℃ and the fermentation time is 30 days to obtain organic biological enzyme fertilizer. S5: Take organic bio-enzyme fertilizer and add water to submerge the organic bio-enzyme fertilizer. Then add protein hydrolysate and cellulase and seal it for 15 days at 25℃. After solid-liquid filtration to remove impurities, dilute it with 60 times the amount of water to obtain organic bio-enzyme water-soluble fertilizer.

[0025] Example 3: 1. Special fertilizers for oak fern cultivation include foliar fertilizer for spraying oak fern and organic bio-enzyme water-soluble fertilizer for the rhizomes of oak fern. The specific raw material components are as follows: (1) The raw materials for foliar fertilizer spraying are calculated by weight as follows: 25 parts potassium nitrate, 20 parts ammonium nitrate, 5 parts magnesium sulfate heptahydrate, 5 parts potassium dihydrogen phosphate, 8 parts calcium chloride dihydrate, 5 parts manganese sulfate tetrahydrate, 2 parts zinc sulfate heptahydrate, 2 parts boric acid, 0.5 parts potassium iodide, 0.2 parts sodium molybdate dihydrate, 0.2 parts copper sulfate pentahydrate, 0.2 parts cobalt chloride hexahydrate, 5 parts ferrous sulfate heptahydrate, and 8 parts ethylenediaminetetraacetic acid. (2) The raw materials of the organic bio-enzyme water-soluble fertilizer are calculated by weight as follows: 40 parts rapeseed cake, 60 parts pumpkin, 40 parts wood ash, 40 parts soybean meal, 20 parts industrial brown sugar, 6 parts microbial agent, 0.7 parts protein hydrolysate and 0.3 parts cellulase.

[0026] 2. Preparation process: S1: Weigh each component of the raw material according to the formula ratio of the spray fertilizer, add it to 120 times the amount of water in 6 equal amounts, and stir continuously until no sediment is produced. The resulting liquid is the spray foliar fertilizer. S2: Spread soybean meal oil and fruits out to dry until the moisture content is ≤20%, and set aside; S3: First, spread the rapeseed cake out to dry until the moisture content is ≤20%, then weigh the rapeseed cake and set it aside; S4: Weigh each component raw material according to the raw material formula ratio of water-soluble fertilizer. First, mix rapeseed cake, melon and fruit, wood ash, soybean meal and industrial brown sugar, add water to just submerge them, then add microbial inoculant and stir and mix evenly. Seal and ferment at a temperature of 20-40℃ for 15 days to obtain organic biological enzyme fertilizer. S5: Take organic bio-enzyme fertilizer, add water to submerge the organic bio-enzyme fertilizer, add protein hydrolysate and cellulase, and then seal and ferment for 15 days at a temperature of 25℃. Then, filter and separate the solid and liquid components to remove impurities, and dilute with 40 times the amount of water to obtain organic bio-enzyme water-soluble fertilizer.

[0027] Example 4: 1. Special fertilizers for oak fern cultivation include foliar fertilizer for spraying oak fern and organic bio-enzyme water-soluble fertilizer for the rhizomes of oak fern. The specific raw material components are as follows: (1) The raw materials for spraying foliar fertilizer are calculated by weight as follows: 12.5 parts potassium nitrate, 10 parts ammonium nitrate, 3.5 parts magnesium sulfate heptahydrate, 3.5 parts potassium dihydrogen phosphate, 6 parts calcium chloride dihydrate, 3.5 parts manganese sulfate tetrahydrate, 1 part zinc sulfate heptahydrate, 1 part boric acid, 0.25 parts potassium iodide, 0.1 parts sodium molybdate dihydrate, 0.1 parts copper sulfate pentahydrate, 0.1 parts cobalt chloride hexahydrate, 3.5 parts ferrous sulfate heptahydrate, and 5 parts ethylenediaminetetraacetic acid. (2) The raw materials of the organic bio-enzyme water-soluble fertilizer are calculated by weight as follows: 30 parts rapeseed cake, 50 parts watermelon, 25 parts wood ash, 25 parts soybean meal, 15 parts industrial brown sugar, 4 parts microbial agent, 0.4 parts protein hydrolysate and 0.6 parts cellulase.

[0028] 2. Preparation process: S1: Weigh each component of the raw material according to the formula ratio of the spray fertilizer, add it to 100 times the amount of water in 5 equal amounts, and stir continuously until no sediment is produced. The resulting liquid is the spray foliar fertilizer. S2: Spread soybean meal oil and fruits out to dry until the moisture content is ≤20%, and set aside; S3: First, spread the rapeseed cake out to dry until the moisture content is ≤20%, then weigh the rapeseed cake and set it aside; S4: Weigh each component raw material according to the raw material formula ratio of water-soluble fertilizer. First, mix rapeseed cake, melon and fruit, wood ash, soybean meal and industrial brown sugar, then add water to just submerge them. Then add microbial inoculant and stir to mix. After mixing evenly, seal and ferment. The fermentation temperature is 20-40℃ and the fermentation time is 25 days to obtain organic biological enzyme fertilizer. S5: Take organic bio-enzyme fertilizer and add water to submerge the organic bio-enzyme fertilizer. Then add protein hydrolysate and cellulase and seal it for fermentation for 15 days at a temperature of 25℃. Then filter and separate the solid and liquid components to remove impurities. Dilute with 50 times the amount of water to obtain organic bio-enzyme water-soluble fertilizer.

[0029] Example 5: 1. Special fertilizers for oak fern cultivation include foliar fertilizer for spraying oak fern and organic bio-enzyme water-soluble fertilizer for the rhizomes of oak fern. The specific raw material components are as follows: (1) The raw materials for spraying foliar fertilizer are calculated by weight as follows: 12.5 parts potassium nitrate, 10 parts ammonium nitrate, 3.5 parts magnesium sulfate heptahydrate, 3.5 parts potassium dihydrogen phosphate, 6 parts calcium chloride dihydrate, 3.5 parts manganese sulfate tetrahydrate, 1 part zinc sulfate heptahydrate, 1 part boric acid, 0.25 parts potassium iodide, 0.1 parts sodium molybdate dihydrate, 0.1 parts copper sulfate pentahydrate, 0.1 parts cobalt chloride hexahydrate, 3.5 parts ferrous sulfate heptahydrate, and 5 parts ethylenediaminetetraacetic acid. (2) The raw materials of the organic bio-enzyme water-soluble fertilizer are calculated by weight as follows: 30 parts of tung oil cake, 50 parts of winter melon, 25 parts of wood ash, 25 parts of soybean meal, 15 parts of industrial brown sugar, 4 parts of microbial agent, 0.6 parts of protein hydrolysate and 0.4 parts of cellulase.

[0030] 2. Preparation process: S1: Weigh each component of the raw material according to the formula ratio of the spray fertilizer, add it to 100 times the amount of water in 5 equal amounts, and stir continuously until no sediment is produced. The resulting liquid is the spray foliar fertilizer. S2: Spread soybean meal oil and fruits out to dry until the moisture content is ≤20%, and set aside; S3: First, spread the rapeseed cake out to dry until the moisture content is ≤20%, then weigh the rapeseed cake and set it aside; S4: Weigh each component raw material according to the raw material formula ratio of water-soluble fertilizer. First, mix rapeseed cake, melon and fruit, wood ash, soybean meal and industrial brown sugar, then add water to just submerge them. Then add microbial inoculant and stir to mix. After mixing evenly, seal and ferment. The fermentation temperature is 20-40℃ and the fermentation time is 25 days to obtain organic biological enzyme fertilizer. S5: Take organic bio-enzyme fertilizer and add water to submerge the organic bio-enzyme fertilizer. Then add protein hydrolysate and cellulase and seal it for fermentation for 15 days at a temperature of 25℃. Then filter it to separate the solid and liquid components, remove impurities, and dilute it with 50 times the amount of water to obtain organic bio-enzyme water-soluble fertilizer.

[0031] Comparative Example 1: 1. The control group used a special fertilizer for oak fern cultivation, which was only the substrate used during planting. This control group did not use foliar spraying or organic bio-enzyme water-soluble fertilizer.

[0032] Comparative Example 2: 1. The special fertilizer for oak fern cultivation is a foliar fertilizer sprayed only on the leaves of oak ferns. The specific raw material components are as follows: (1) The raw materials for spraying foliar fertilizer are calculated by weight as follows: 12.5 parts potassium nitrate, 10 parts ammonium nitrate, 3.5 parts magnesium sulfate heptahydrate, 3.5 parts potassium dihydrogen phosphate, 6 parts calcium chloride dihydrate, 3.5 parts manganese sulfate tetrahydrate, 1 part zinc sulfate heptahydrate, 1 part boric acid, 0.25 parts potassium iodide, 0.1 parts sodium molybdate dihydrate, 0.1 parts copper sulfate pentahydrate, 0.1 parts cobalt chloride hexahydrate, 3.5 parts ferrous sulfate heptahydrate, and 5 parts ethylenediaminetetraacetic acid. 2. Preparation process: S1: Weigh each component of the raw material according to the formula ratio of the spray fertilizer, add it to 100 times the amount of water in 5 equal amounts, and stir continuously until no sediment is produced. The resulting liquid is the spray foliar fertilizer.

[0033] Comparative Example 3: 1. The special fertilizer for oak fern cultivation is an organic bio-enzyme water-soluble fertilizer used only on the rhizomes of oak ferns. The specific raw material components are as follows: (1) The raw materials of the organic bio-enzyme water-soluble fertilizer are calculated by weight as follows: 30 parts of tung oil cake, 50 parts of pumpkin, 25 parts of wood ash, 25 parts of soybean meal, 15 parts of industrial brown sugar, 4 parts of microbial agent, 0.3-0.7 parts of protein hydrolysate and 0.3-0.7 parts of cellulase.

[0034] 2. Preparation process: S1: Spread soybean meal oil and fruits out to dry until the moisture content is ≤20%, and set aside; S2: First, spread the rapeseed cake out to dry until the moisture content is ≤20%, then weigh the rapeseed cake and set it aside; S3: Weigh each component raw material according to the raw material formula ratio of water-soluble fertilizer. First, mix rapeseed cake, pumpkin, wood ash, soybean meal and industrial brown sugar, then add water to just submerge them. Then add microbial inoculant and stir to mix. After mixing evenly, seal and ferment. The fermentation temperature is 20-40℃ and the fermentation time is 25 days to obtain organic biological enzyme fertilizer. S4: Take organic bio-enzyme fertilizer and add water to submerge the organic bio-enzyme fertilizer. Then add protein hydrolysate and cellulase and seal it for fermentation for 15 days at a temperature of 25℃. Then filter it to separate the solid and liquid components, remove impurities, and dilute it with 50 times the amount of water to obtain organic bio-enzyme water-soluble fertilizer.

[0035] The fertilizers used in Examples 1-5 and Comparative Examples 1-3 were applied to the fern seedlings. Foliar fertilizer was sprayed on the leaves of the fern seedlings, and organic bio-enzyme water-soluble fertilizer was used to irrigate the rhizomes of the fern.

[0036] Specifications of oak fern seedling trays: 80g, 200 holes, 20 holes long × 10 holes wide; total length 54cm, width 28cm; single hole diameter 2.5cm, depth 4cm, bottom diameter 0.9cm.

[0037] The substrate consists of oyster mushroom substrate and coconut coir, with a mass ratio of oyster mushroom substrate to coconut coir of 3:1.

[0038] Plant height, stem diameter, and stem weight are all average values ​​of 10 randomly selected plants.

[0039] Twelve months after fertilization, ten oak fern seedlings were randomly selected, and their plant height, stem diameter, and stem weight were measured. The average values ​​were calculated to evaluate the growth of the oak fern seedlings. See Table 1 for details. Figure 2 : Table 1: Fertilization of fern seedlings in the examples and comparative cases As shown in Table 1, in Examples 1-3, spraying the leaves of the fern seedlings with foliar fertilizer and irrigating the rhizomes with organic bio-enzyme water-soluble fertilizer can effectively promote the growth of the fern seedlings. Based on the stem weight, it can be calculated that with 10,000 seedlings per mu, the fresh weight of the fern seedlings per mu can reach more than 1252.4 kg.

Claims

1. A special fertilizer for cultivating oak fern, characterized in that: The special fertilizers include foliar fertilizer for spraying oak fern and organic bio-enzyme water-soluble fertilizer for the rhizomes of oak fern; The raw materials for the foliar fertilizer, calculated by weight, are prepared from 2-25 parts potassium nitrate, 2-20 parts ammonium nitrate, 2-5 parts magnesium sulfate heptahydrate, 2-5 parts potassium dihydrogen phosphate, 4-8 parts calcium chloride dihydrate, 2-5 parts manganese sulfate tetrahydrate, 0.5-2 parts zinc sulfate heptahydrate, 0.5-2 parts boric acid, 0.05-0.5 parts potassium iodide, 0.01-0.2 parts sodium molybdate dihydrate, 0.01-0.2 parts copper sulfate pentahydrate, 0.01-0.2 parts cobalt chloride hexahydrate, 2-5 parts ferrous sulfate heptahydrate, and 3-8 parts ethylenediaminetetraacetic acid. The raw materials of the organic bio-enzyme water-soluble fertilizer, calculated by weight, are prepared from 20-40 parts rapeseed cake, 40-60 parts melon and fruit, 10-40 parts wood ash, 10-40 parts soybean meal, 10-20 parts industrial brown sugar, 2-6 parts microbial inoculant, 0.3-0.7 parts proteolytic enzyme, and 0.3-0.7 parts cellulase.

2. The special fertilizer for the growth of Cyatheas sp. according to claim 1, characterized by the fact that: The raw materials for the foliar fertilizer, calculated by weight, are prepared from 12.5 parts potassium nitrate, 10 parts ammonium nitrate, 3.5 parts magnesium sulfate heptahydrate, 3.5 parts potassium dihydrogen phosphate, 6 parts calcium chloride dihydrate, 3.5 parts manganese sulfate tetrahydrate, 1 part zinc sulfate heptahydrate, 1 part boric acid, 0.25 parts potassium iodide, 0.1 parts sodium molybdate dihydrate, 0.1 parts copper sulfate pentahydrate, 0.1 parts cobalt chloride hexahydrate, 3.5 parts ferrous sulfate heptahydrate, and 5 parts ethylenediaminetetraacetic acid.

3. The special-purpose fertilizer for planting of the Cyatheas sp. according to claim 1, characterized in that: The raw materials of the organic bio-enzyme water-soluble fertilizer, calculated by weight, are prepared from 30 parts rapeseed cake, 50 parts melon and fruit, 25 parts wood ash, 25 parts soybean meal, 15 parts industrial brown sugar, 4 parts microbial inoculant, 0.5 parts proteolytic enzyme, and 0.5 parts cellulase.

4. The special-purpose fertilizer for Cyatheas sp. according to claim 1 or 3, characterized in that: The melon or fruit is one or more of pumpkin, watermelon or winter melon, and the moisture content of the melon or fruit is ≤20%. The moisture content of the rapeseed cake is ≤20%, and the moisture content of the soybean meal is ≤20%.

5. The special-purpose fertilizer for Cyatheas sp. according to claim 1 or 3, characterized in that: The microbial inoculant is 2-6 parts.

6. The special-purpose fertilizer for Cyatheas sp. according to claim 1 or 3, characterized in that: The rapeseed cake can be replaced by camellia oil cake or tung oil cake.

7. The method of claim 1-3, wherein the preparation method of the special fertilizer for Cyatheas is characterized in that: Follow these steps: S1: Weigh each component of the raw material according to the formula ratio of the spray fertilizer, add it to 80-120 times the amount of water in 3-6 equal amounts, and stir continuously until no sediment is produced. The resulting liquid is the spray foliar fertilizer. S2: Spread soybean meal oil and fruits out to dry until the moisture content is ≤20%, and set aside; S3: First, spread the rapeseed cake out to dry until the moisture content is ≤20%, then weigh the rapeseed cake and set it aside; S4: Weigh each component raw material according to the raw material formula ratio of water-soluble fertilizer. First, mix rapeseed cake, melon and fruit, wood ash, soybean meal and industrial brown sugar, then add water to just submerge them. Then add microbial inoculant and stir to mix. After mixing evenly, seal and ferment. The fermentation temperature is 20-50℃ and the fermentation time is 15-30 days to obtain organic biological enzyme fertilizer. S5: Take organic bio-enzyme fertilizer, add water, add protein hydrolysate and cellulase, seal and ferment at 20-50℃ for 15-30 days, then filter and separate the solid and liquid components to remove impurities, and dilute with 40-60 times the amount of water to obtain organic bio-enzyme water-soluble fertilizer.

8. The method for preparing the special fertilizer for oak fern cultivation according to claim 7, characterized in that: In step S1, each component raw material is weighed according to the raw material formula ratio of the spray fertilizer, and added to 100 times the amount of water in 4-5 equal amounts. The mixture is stirred continuously until no sediment is produced. The resulting liquid is the liquid spray foliar fertilizer.

9. The method for preparing the special fertilizer for oak fern cultivation according to claim 7, characterized in that: In step S3, the fermentation temperature is 20-50℃ and the fermentation time is 15-30 days.

10. The method for preparing the special fertilizer for oak fern cultivation according to claim 7, characterized in that: In step S4, dilute with 50 times the amount of water.

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