Special set composite fertilizer for hot peppers and topdressing method of special set composite fertilizer

Abstract

The invention provides a special package compound fertilizer for peppers and a topdressing method thereof. The special package compound fertilizer comprises a nitrogen fertilizer, a phosphate fertilizer, a potash fertilizer, a calcium fertilizer, a magnesium fertilizer, a boron fertilizer, a microbial compound fertilizer and an amino acid fertilizer. The microbial compound fertilizer is prepared from a mixed arbuscular mycorrhizal fungal agent, a zinc fertilizer and manure, the mixed arbuscular mycorrhizal fungal agent is Glomus fasciatus Vermann and sclerosporum Dusii, topdressing is started according to the mass ratio of nitrate ions to ammonium ions being 1: (2-3) 10 days after the pepper is transplanted, and topdressing is carried out for 6 times in total. According to the chili package compound fertilizer, the chili nutrient absorption rule and the nutrient utilization efficiency are taken as the fertilization starting point, the nitrogen-phosphorus-potassium fertilizer is taken as the main body, and medium trace elements with large demand quantity for chili are added, so that the chili yield can be remarkably increased, the fruit quality can be improved, and the chili package compound fertilizer is suitable for being popularized and used in chili planting areas.

Description

Technical Field

[0001] The invention relates to the technical field of fertilizers, and in particular to a special package compound fertilizer for pepper and a topdressing method thereof. Background Art

[0002] Pepper production has become a pillar industry of the economy and a major source of income for farmers. Unbalanced fertilizer application will lead to reduced pepper production and quality. Therefore, it is very important to improve the level of pepper fertilization technology. The low level of pepper fertilization technology mainly has the following three problems: (1) At present, the type of pepper fertilizer is mainly 15:15:15 ternary compound fertilizer, while the absorption ratio of nitrogen, phosphorus and potassium by pepper is about 1:0.5:1, which leads to high effective phosphorus in the vegetable field soil and relatively insufficient nitrogen and potassium nutrients during the fruit expansion period. (2) Organic fertilizer is rarely applied, the soil organic matter content is low, and the water and fertilizer retention capacity is poor, resulting in low fertilizer utilization rate. (3) Medium and micro fertilizers are rarely applied. The content of nutrients such as calcium and magnesium in the soil is low, and most soils have low effective boron and zinc content. Pepper is a typical Solanaceae vegetable with a high demand for medium and micro elements such as zinc, boron, calcium and magnesium. In the case of continuous cultivation without supplementation of medium and micro elements, the problem of reduced yield and quality is very serious. (4) Excessive light intensity can easily cause zinc deficiency in peppers, which can lead to slow growth of the top, top dieback, short plants, clusters of small leaves on the top, and small leaf disease.

[0003] Field test studies have shown that peppers absorb very little nitrogen during the seedling stage, accounting for less than 5% of the total nitrogen nutrient absorption during the entire growth period. After peppers enter the picking period, the nitrogen nutrient accumulation increases sharply, and the amount of nitrogen transferred to the fruit accounts for about 60% of the total nitrogen absorption. The phosphorus absorption law of peppers is similar to that of nitrogen, mainly concentrated in the fruit-bearing period, and the phosphorus absorption in the seedling stage accounts for 6-14% of the phosphorus absorption in the entire growth period. Peppers also mainly absorb potassium during the fruit-bearing period, and the potassium absorption in the seedling stage accounts for about 10% of the total potassium absorption, and more than about 70% of the total potassium absorbed by peppers is transferred to the fruit. In view of the basic conditions of the soil, the problems existing in pepper fertilization, and the law of pepper nutrient absorption, the present invention takes a certain proportion of nitrogen, phosphorus, and potassium nutrients as the main body, adds medium and trace elements with large pepper demand, and formulates a set of special topdressing packages suitable for pepper planting. After the implementation of the present invention, not only can the pepper yield be increased, but also the fruit quality can be improved, and it is suitable for promotion and use in pepper planting areas. Summary of the invention

[0004] In view of this, the present invention provides a special package compound fertilizer for pepper and a topdressing method thereof.

[0005] The technical solution of the present invention is achieved in this way:

[0006] A special package compound fertilizer for peppers includes the following fertilizers in weight and volume: nitrogen fertilizer as N: 18-25kg, phosphorus fertilizer as P2O5: 2.5-7.5kg, potassium fertilizer as K2O: 16-22kg, calcium fertilizer as Ca: 2-6kg, magnesium fertilizer as Mg: 3-7kg, boron fertilizer as B: 0.1-0.3kg, microbial compound fertilizer 0.8-1.0kg, and amino acid fertilizer 400-800ml.

[0007] Furthermore, the microbial compound fertilizer consists of arbuscular mycorrhizal fungi, zinc fertilizer and manure, the arbuscular mycorrhizal fungi are Glomus fasciculatum Gerdemann and Sclerocystis Dussii in a mass ratio of (1-1.5):1, the zinc fertilizer is zinc oxide, zinc sulfate and zinc chloride in a mass ratio of (0.8-1.2):(0.8-1.2):(2-3), and the manure is chicken manure.

[0008] The preparation method of the microbial compound fertilizer is as follows: culturing arbuscular mycorrhizal fungi agents, sterilizing host plants, propagating arbuscular mycorrhizal fungi in propagation substrates, and obtaining mixed arbuscular mycorrhizal fungi agents containing host plant root segments, arbuscular mycorrhizal fungi spores, and extraradical hyphae after propagation of the propagation substrates.

[0009] Furthermore, the propagation substrate, the mixed zinc powder and the mixed arbuscular mycorrhizal fungi agent are mixed in a mass ratio of 3:(0.8-1.2):(0.2-0.5), stirred and granulated to obtain a microbial compound fertilizer.

[0010] Furthermore, the preparation method of the propagation matrix includes: mixing the decomposed chicken manure and air-dried soil in a ratio of 1: (3-3.5), passing through a 2 mm sieve, sterilizing with high-pressure steam at 120-125° C. for 1-1.2 h, and cooling to room temperature to obtain the propagation matrix.

[0011] Furthermore, the fungal spore content in the mixed arbuscular mycorrhizal fungal agent is greater than 15 / g.

[0012] Furthermore, the nitrogen fertilizer consists of at least two of urea, ammonium sulfate, ammonium nitrate and monoammonium phosphate, and the mass ratio of nitrate ion to ammonium ion is 1:2-3.

[0013] Furthermore, the phosphate fertilizer is extracted from one or two of superphosphate and calcium-magnesium phosphate fertilizer, the potash fertilizer is potassium sulfate, the calcium fertilizer is extracted from one or more of calcium nitrate, superphosphate, and calcium saccharide, the magnesium fertilizer is extracted from one or more of magnesium sulfate, magnesium nitrate, and magnesium carbonate, and the boron fertilizer is borax.

[0014] Furthermore, the amount of leucine, isoleucine, threonine, arginine, glycine and serine in the amino acid fertilizer accounts for 75-85% of the total amount of free amino acids.

[0015] Furthermore, the above-mentioned pepper-specific compound fertilizer package is applied for topdressing after the pepper is transplanted, and the application amount of topdressing is 6 times in total; (1) the first topdressing is applied 10 days after the pepper is transplanted, and the application amount of nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, amino acid fertilizer and microbial compound fertilizer accounts for 10% of the total amount; (2) the second topdressing is applied during the initial flowering period of the pepper, and the application amount of nitrogen fertilizer, phosphorus fertilizer and potassium fertilizer accounts for 10% of the total amount, the application amount of calcium fertilizer, magnesium fertilizer and amino acid fertilizer accounts for 20% of the total amount, the application amount of boron fertilizer accounts for 50% of the total amount, and the application amount of microbial compound fertilizer accounts for 50% of the total amount; (3) the third topdressing is applied during the fruiting period of the pepper, and the application amount of nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, calcium fertilizer, magnesium fertilizer, boron fertilizer and amino acid fertilizer accounts for The amount of boron fertilizer and amino acid fertilizer each accounted for 10% of the total amount, and the amount of nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, calcium fertilizer and magnesium fertilizer each accounted for 20% of the total amount, and the amount of mycorrhizal fungus agent-zinc-compound manure fertilizer accounted for 10% of the total amount; (5) The fifth topdressing after the second picking of peppers, the amount of nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, calcium fertilizer, magnesium fertilizer, boron fertilizer and amino acid fertilizer each accounted for 20% of the total amount; (6) The sixth topdressing after the third picking of peppers, the amount of nitrogen fertilizer, potassium fertilizer, calcium fertilizer, magnesium fertilizer and amino acid fertilizer each accounted for 20% of the total amount.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The pepper-specific package compound fertilizer of the present invention is compounded with nitrogen, phosphorus and potassium fertilizers, boron, calcium and magnesium fertilizers, microbial compound fertilizers and amino acid fertilizers. The pepper package compound fertilizer and the microbial compound fertilizer are composed of arbuscular mycorrhizal fungi, zinc and decomposed chicken manure. The addition of zinc in the package compound fertilizer avoids the symptom of zinc deficiency in peppers in high temperature climates, and the addition of arbuscular mycorrhizal fungi and manure promotes the absorption of zinc by peppers. Topdressing begins 10 days after peppers are transplanted, and the fertilization method of topdressing 6 times in total balances the absorption and utilization of pepper nutrients and improves the absorption of nutrients in the soil by peppers.

[0018] (2) The mass ratio of nitrate ions to ammonium ions and the specific content of free amino acid components in the present invention meet the nutrient requirements of peppers throughout the entire growth period, thereby significantly increasing the yield of peppers.

[0019] (3) The special topdressing package of the present invention adds medium and trace elements that peppers require in large quantities. The arbuscular mycorrhizal fungi agent and manure promote the absorption of medium and trace elements, significantly increasing the content of vitamin C and soluble protein in peppers. The vitamin C content increases by an average of 29%, the soluble protein content increases by an average of 42%, and the nitrate content decreases by an average of 37%, effectively improving the fruit quality of peppers. DETAILED DESCRIPTION

[0020] In order to better understand the technical content of the present invention, specific embodiments are provided below to further illustrate the present invention.

[0021] Unless otherwise specified, the experimental methods used in the embodiments of the present invention are all conventional methods.

[0022] Unless otherwise specified, the materials, reagents, etc. used in the embodiments of the present invention can be obtained from commercial sources.

[0023] Glomus fasciculatum Gerdemann and Sclerocystis Dussii, with a purity of more than 1 billion / g and a strain count of more than 1.2 billion / g, were purchased from Shanghai Youlike Life Sciences Co., Ltd. The manufacturer of the commercial package compound fertilizer is Stanley Agricultural Group Co., Ltd.

[0024] The topdressing method of embodiment:

[0025] A total of six topdressings were carried out, and the specific methods are as follows:

[0026] (1) The first topdressing should be done 10 days after pepper transplanting, with nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, amino acid fertilizer and microbial compound fertilizer accounting for 10% of the total amount;

[0027] (2) The second topdressing of pepper in the initial flowering period: nitrogen fertilizer, phosphorus fertilizer and potassium fertilizer account for 10% of the total amount, calcium fertilizer, magnesium fertilizer and amino acid fertilizer account for 20% of the total amount, boron fertilizer account for 50% of the total amount, and microbial compound fertilizer account for 50% of the total amount;

[0028] (3) The third topdressing during the pepper fruiting period: the application amount of nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, calcium fertilizer, magnesium fertilizer, boron fertilizer and amino acid fertilizer each accounts for 20% of the total, and the application amount of microbial compound fertilizer accounts for 30% of the total;

[0029] (4) The fourth topdressing after the first harvest of peppers: the application amount of boron fertilizer and amino acid fertilizer each accounted for 10% of the total amount, the application amount of nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, calcium fertilizer and magnesium fertilizer each accounted for 20% of the total amount, and the application amount of mycorrhizal fungus agent-zinc-compound manure accounted for 10% of the total amount;

[0030] (5) The fifth topdressing after the second harvest of peppers, nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, calcium fertilizer, magnesium fertilizer, boron fertilizer and amino acid fertilizer application rate each accounted for 20% of the total;

[0031] (6) The sixth topdressing after the third harvest of peppers was carried out, and the application amount of nitrogen fertilizer, potassium fertilizer, calcium fertilizer, magnesium fertilizer and amino acid fertilizer accounted for 20% of the total.

[0032] Example 1

[0033] Formula of compound fertilizer package specially for peppers: calculated by application amount per mu, nitrogen fertilizer as N is 18±0.5kg, phosphorus fertilizer as P2O5 is 2.5±0.1kg, potassium fertilizer as K2O is 16±0.5kg, calcium fertilizer as Ca is 2±0.2kg, magnesium fertilizer as Mg is 3±0.5kg, boron fertilizer as B is 0.1±0.02kg, amino acid fertilizer is 400mL, microbial compound fertilizer is 0.8kg, and the mass ratio of nitrate ion to ammonium ion of fertilizer is 1:2.4.

[0034] Among them, the specific fertilizers are: 10kg urea, 24.8kg ammonium sulfate, 10kg ammonium nitrate, 9.28kg monoammonium phosphate, 32kg potassium sulfate, 12kg calcium nitrate, 20kg magnesium nitrate, 0.46kg borax, 400mL amino acid fertilizer, and 0.8kg compound microbial fertilizer.

[0035] The preparation method of microbial compound fertilizer comprises:

[0036] S1. Cultivate arbuscular mycorrhizal fungi agent, sterilize the host plant, propagate arbuscular mycorrhizal fungi in the propagation matrix, and obtain a mixed arbuscular mycorrhizal fungi agent containing host plant root segments, arbuscular mycorrhizal fungi spores, and extraradical hyphae after propagation of the propagation matrix. Mix the decomposed chicken manure and air-dried soil in a ratio of 1:3, pass through a 2 mm sieve, sterilize with high-pressure steam at 120°C for 1 hour, and cool to room temperature to obtain the propagation matrix.

[0037] S2. Zinc oxide powder, zinc sulfate powder and zinc chloride powder are mixed uniformly in a mass ratio of 1:1:2 to obtain a mixed zinc powder;

[0038] S3. The propagation matrix, mixed zinc powder and mixed arbuscular mycorrhizal fungal agent are mixed in a mass ratio of 3:1:0.3, stirred and granulated to obtain a microbial compound fertilizer, wherein the fungal spore content in the mixed arbuscular mycorrhizal fungal agent is greater than 15 spores / g.

[0039] Example 2

[0040] Formula of compound fertilizer package specially for peppers: calculated by application amount per mu, nitrogen fertilizer as N is 22±0.5kg, phosphorus fertilizer as P2O5 is 5±0.5kg, potassium fertilizer as K2O is 20±0.5kg, calcium fertilizer as Ca is 4.4±0.3kg, magnesium fertilizer as Mg is 5±0.2kg, boron fertilizer as B is 0.2±0.05kg, amino acid fertilizer is 600mL, microbial compound fertilizer is 0.9kg, and the mass ratio of nitrate ion to ammonium ion is 1:2.21.

[0041] Among them, the specific fertilizers are: 47kg ammonium sulfate, 30kg ammonium nitrate, 29.5kg superphosphate, 40kg potassium sulfate, 5kg calcium nitrate, 17.5kg magnesium sulfate, 10kg magnesium nitrate, 0.92kg borax, 600mL amino acid fertilizer, and 0.9kg compound microbial fertilizer.

[0042] The preparation method of microbial compound fertilizer comprises:

[0043] S1. Cultivate arbuscular mycorrhizal fungi agent, sterilize the host plant, propagate arbuscular mycorrhizal fungi in the propagation matrix, and obtain a mixed arbuscular mycorrhizal fungi agent containing host plant root segments, arbuscular mycorrhizal fungi spores, and extraradical hyphae after propagation of the propagation matrix. Mix the decomposed chicken manure and air-dried soil in a ratio of 1:3.5, pass through a 2 mm sieve, sterilize with high-pressure steam at 125°C for 1.2 h, and cool to room temperature to obtain the propagation matrix.

[0044] S2. Zinc oxide powder, zinc sulfate powder and zinc chloride powder are mixed uniformly in a mass ratio of 1:1:3 to obtain a mixed zinc powder;

[0045] S3. The propagation matrix, mixed zinc powder and mixed arbuscular mycorrhizal fungal agent are mixed in a mass ratio of 3:1:0.5, stirred and granulated to obtain a microbial compound fertilizer, wherein the fungal spore content in the mixed arbuscular mycorrhizal fungal agent is greater than 15 spores / g.

[0046] Example 3

[0047] Formula of compound fertilizer package specially for peppers: calculated by application amount per mu, nitrogen fertilizer as N is 25±0.5kg, phosphorus fertilizer as P2O5 is 7.5±0.5kg, potassium fertilizer as K2O is 22±0.5kg, calcium fertilizer as Ca is 6±0.5kg, magnesium fertilizer as Mg is 7±0.5kg, boron fertilizer as B is 0.3±0.03kg, amino acid fertilizer is 800mL, microbial compound fertilizer is 0.8kg, and the mass ratio of nitrate ion to ammonium ion is 1:2.86.

[0048] Among them, the specific fertilizers are: 33.3kg urea, 8kg ammonium nitrate, 15kg monoammonium phosphate, 20.3kg superphosphate, 44kg potassium sulfate, 21.1kg calcium nitrate, 16.6kg magnesium sulfate, 24.5kg magnesium nitrate, 1.38kg borax, 800mL amino acid fertilizer, and 0.8kg compound microbial fertilizer.

[0049] The preparation method of microbial compound fertilizer comprises:

[0050] S1. Cultivate arbuscular mycorrhizal fungi agent, sterilize the host plant, propagate arbuscular mycorrhizal fungi in the propagation matrix, and obtain a mixed arbuscular mycorrhizal fungi agent containing host plant root segments, arbuscular mycorrhizal fungi spores, and extraradical hyphae after propagation of the propagation matrix. Mix decomposed chicken manure and air-dried soil in a ratio of 1:3.3, pass through a 2 mm sieve, sterilize with high-pressure steam at 123°C for 1 hour, and cool to room temperature to obtain the propagation matrix.

[0051] S2. Zinc oxide powder, zinc sulfate powder and zinc chloride powder are mixed uniformly in a mass ratio of 1:1:2.5 to obtain a mixed zinc powder;

[0052] S3. The propagation matrix, mixed zinc powder and mixed arbuscular mycorrhizal fungal agent are mixed in a mass ratio of 3:1:0.3, stirred and granulated to obtain a microbial compound fertilizer, wherein the fungal spore content in the mixed arbuscular mycorrhizal fungal agent is greater than 15 spores / g.

[0053] Treatment 1: Fertilization was performed according to the formula of the package compound fertilizer and the topdressing method of Example 1

[0054] Treatment 2: Fertilizing according to the formula of the package compound fertilizer and the topdressing method of Example 2

[0055] Treatment 3: Fertilizing according to the formula of the package compound fertilizer and the topdressing method of Example 3

[0056] CK1-1: In the preparation of the microbial compound fertilizer in the topdressing package of treatment 3, the arbuscular mycorrhizal fungi agent was removed, and the other fertilizer amounts and fertilization methods were consistent with those in Example 3.

[0057] CK1-2: In the topdressing package of treatment 3, zinc was removed from the microbial compound fertilizer, and other fertilizer amounts and fertilization methods were consistent with those in Example 3.

[0058] CK1-3: In the formula of the topdressing package of treatment 3, the manure was removed from the microbial compound fertilizer, and the other fertilizer amounts and fertilization methods were consistent with those in Example 3.

[0059] CK2-1: The fertilization method of treatment 3 topdressing was replaced by applying all fertilizers as basal fertilizers into the soil once 2 days before planting.

[0060] CK2-2: The mass ratio of nitrate ion to ammonium ion in the topdressing package of treatment 3 was replaced with 1.5:2, and other fertilizer amounts and fertilization methods were consistent with those in Example 3.

[0061] CK2-3: The mass ratio of nitrate ion to ammonium ion in the topdressing package of treatment 3 was replaced with 1:3.5, and other fertilizer amounts and fertilization methods were consistent with those in Example 3.

[0062] CK3-1: The amount of leucine, isoleucine, threonine, arginine, glycine and serine in the topdressing package of treatment 1 accounted for less than 75% of the total free amino acids, and other fertilizer amounts and fertilization methods were consistent with Example 3.

[0063] CK3-2: The amount of leucine, isoleucine, threonine, arginine, glycine and serine in the topdressing package of treatment 2 accounted for less than 75% of the total free amino acids, and the amount of other fertilizers and the fertilization method were consistent with those in Example 3.

[0064] CK3-3: The amount of leucine, isoleucine, threonine, arginine, glycine and serine in the topdressing package of treatment 3 accounted for less than 75% of the total free amino acids, and other fertilizer amounts and fertilization methods were consistent with Example 3.

[0065] CK4-1: The amount of leucine, isoleucine, threonine, arginine, glycine and serine in the topdressing package of treatment 1 accounted for more than 85% of the total free amino acids, and the amount of other fertilizers and the fertilization method were consistent with those in Example 3.

[0066] CK4-2: The amount of leucine, isoleucine, threonine, arginine, glycine and serine in the topdressing package of treatment 2 accounted for more than 85% of the total amount of free amino acids, and the amount of other fertilizers and the fertilization method were consistent with those in Example 3.

[0067] CK4-3: The amount of leucine, isoleucine, threonine, arginine, glycine and serine in the topdressing package of treatment 3 accounted for more than 85% of the total amount of free amino acids, and the amount of other fertilizers and the fertilization method were consistent with those in Example 3.

[0068] Absolute control 1: topdressing was performed with commercially available compound fertilizer, and other fertilizer amounts and fertilization methods were consistent with those in Example 3.

[0069] Absolute control 2: topdressing was performed with commercially available compound fertilizer, and other fertilizer amounts and fertilization methods were consistent with those in Example 3.

[0070] Absolute control 3: topdressing was performed with commercially available compound fertilizer, and other fertilizer amounts and fertilization methods were consistent with those in Example 3.

[0071] test

[0072] In order to further illustrate the promotion and application value of the topdressing package of the present invention, peppers were planted, and fertilizer efficiency tests were conducted to verify that peppers were fertilized according to the fertilizer formulas and topdressing methods of the embodiments and comparative examples. Peppers for testing: Hangzhou pepper (Hangzhou pepper No. 1), line pepper (Mei La 3+1), and horn pepper (Emperor pepper). Experimental design: The experimental design had 18 treatments, each with 3 replicates, and a potted plant experiment was used. Each pot was filled with the same matrix soil of 12 kg. To ensure the normal growth and development of peppers, each pot was applied with N 6.4 g, P2O5 2.13 g, and K2O 3.1 g as base fertilizer. Select pepper seedlings with consistent growth and transplant them into pots, and manage water normally during the period. When the peppers were harvested, the yield was counted, and the vitamin C, nitrate, and soluble protein contents of the fruits were determined. The results are shown in Tables 1-4.

[0073] Table 1 Effects of different fertilization treatments on pepper yield (g / plant)

[0074]

[0075] Note: Different capital letters in the table indicate significant differences among treatments, and different lowercase letters indicate significant differences within treatments, the same below

[0076] Table 2 Effect of different fertilization treatments on vitamin C content of pepper (mg / 100g)

[0077]

[0078] Table 3 Effects of different fertilization treatments on soluble protein content in pepper (mg / g)

[0079]

[0080] Table 4 Effects of different fertilization treatments on nitrate content in pepper (mg / kg)

[0081]

[0082] In summary, it can be seen from Tables 1-4 that the pepper package compound fertilizer and application method (treatment 1-3) of the present invention are applied, and the yield, vitamin C, and soluble protein of Hangzhou Pepper No. 1, Mei La 3+1, and Emperor Pepper are significantly increased, and the maximum increase in yield is 19%, 22%, and 17%, respectively, the maximum increase in vitamin C is 36%, 26%, and 25%, respectively, and the maximum increase in soluble protein is 44%, 47%, and 35%, respectively; the nitrate content is significantly reduced, and the maximum reduction is 43%, 37%, and 36%, respectively. That is, the package compound fertilizer and application method of the present invention significantly increase the yield of peppers planted in the region, significantly increase the content of vitamin C and soluble protein in peppers, significantly reduce the nitrate content in peppers, and improve the quality of peppers.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A special package compound fertilizer for pepper, characterized in that: The invention comprises the following fertilizers by weight and volume: nitrogen fertilizer as N: 18-25kg, phosphorus fertilizer as P2O5: 2.5-7.5kg, potassium fertilizer as K2O: 16-22kg, calcium fertilizer as Ca: 2-6kg, magnesium fertilizer as Mg: 3-7kg, boron fertilizer as B: 0.1-0.3kg, microbial compound fertilizer: 0.8-1.0kg, and amino acid fertilizer: 400-800ml.

2. The pepper-specific compound fertilizer according to claim 1, characterized in that: The microbial compound fertilizer is prepared by mixing arbuscular mycorrhizal fungi, zinc fertilizer and manure, wherein the mixed arbuscular mycorrhizal fungi are Glomus fasciculatum Gerdemann and Sclerocystis Dussii in a mass ratio of (1-1.5):1, the zinc fertilizer is a mixture of zinc oxide powder, zinc sulfate powder and zinc chloride powder in a mass ratio of (0.8-1.2):(0.8-1.2):(2-3), and the manure is decomposed chicken manure.

3. The pepper-specific compound fertilizer according to claim 1, characterized in that: The preparation method of the microbial compound fertilizer comprises the following steps: culturing an arbuscular mycorrhizal fungus agent, sterilizing a host plant, propagating the arbuscular mycorrhizal fungus in a propagation matrix, obtaining a mixed arbuscular mycorrhizal fungus agent after propagating the propagation matrix, mixing the propagation matrix, zinc fertilizer and the mixed arbuscular mycorrhizal fungus agent in a mass ratio of 3:(0.8-1.2):(0.2-0.5), stirring and granulating to obtain the microbial compound fertilizer.

4. The pepper-specific compound fertilizer according to claim 3, characterized in that: The preparation method of the propagation matrix comprises: mixing decomposed chicken manure and air-dried soil evenly according to a ratio of 1: (3-3.5), passing through a 2 mm sieve, sterilizing with high-pressure steam at 120-125° C. for 1-1.2 h, and cooling to room temperature to obtain the propagation matrix.

5. The pepper-specific compound fertilizer according to claim 3, characterized in that: The fungal spore content in the mixed arbuscular mycorrhizal fungal agent is greater than 15 / g.

6. The pepper-specific compound fertilizer according to claim 2, characterized in that: The nitrogen fertilizer is composed of at least two of urea, ammonium sulfate, ammonium nitrate and monoammonium phosphate, and the mass ratio of nitrate ion to ammonium ion is 1:(2-3).

7. The pepper-specific compound fertilizer package according to claim 1, characterized in that: The phosphate fertilizer is one or two of superphosphate and calcium-magnesium phosphate fertilizer, the potash fertilizer is potassium sulfate, the calcium fertilizer is one or more of calcium nitrate, superphosphate, and calcium saccharide, the magnesium fertilizer is one or more of magnesium sulfate, magnesium nitrate, and magnesium carbonate, and the boron fertilizer is borax.

8. The pepper-specific compound fertilizer package according to claim 1, characterized in that: The amount of leucine, isoleucine, threonine, arginine, glycine and serine in the amino acid fertilizer accounts for 75-85% of the total amount of free amino acids.

9. A method for topdressing a compound fertilizer package for peppers, characterized in that: Topdressing began after peppers were transplanted, and a total of six times of topdressing were carried out. The time and amount of topdressing per mu were: (1) The first topdressing should be done 10 days after pepper transplanting, with nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, amino acid fertilizer and microbial compound fertilizer accounting for 10% of the total amount; (2) The second topdressing of pepper in the initial flowering period: nitrogen fertilizer, phosphorus fertilizer and potassium fertilizer account for 10% of the total amount, calcium fertilizer, magnesium fertilizer and amino acid fertilizer account for 20% of the total amount, boron fertilizer account for 50% of the total amount, and microbial compound fertilizer account for 50% of the total amount; (3) The third topdressing during the pepper fruiting period: the application amount of nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, calcium fertilizer, magnesium fertilizer, boron fertilizer and amino acid fertilizer each accounts for 20% of the total, and the application amount of microbial compound fertilizer accounts for 30% of the total; (4) The fourth topdressing after the first harvest of peppers: the application amount of boron fertilizer and amino acid fertilizer each accounted for 10% of the total amount, the application amount of nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, calcium fertilizer and magnesium fertilizer each accounted for 20% of the total amount, and the application amount of mycorrhizal fungus agent-zinc-compound manure accounted for 10% of the total amount; (5) The fifth topdressing after the second harvest of peppers, the amount of nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, calcium fertilizer, magnesium fertilizer, boron fertilizer and amino acid fertilizer applied each accounted for 20% of the total; (6) The sixth topdressing after the third harvest of peppers was carried out, and the application amount of nitrogen fertilizer, potassium fertilizer, calcium fertilizer, magnesium fertilizer and amino acid fertilizer accounted for 20% of the total.

10. Use of the pepper-specific compound fertilizer package according to claim 1 in increasing pepper yield and improving pepper fruit quality.

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