CN112470898B

CN112470898B - Low-cost light-matrix container seedling cultivation method for apocarya

Info

Publication number: CN112470898B
Application number: CN202011175732.6A
Authority: CN
Inventors: 窦全琴
Original assignee: Jiangsu Forestry Academy
Current assignee: Jiangsu Forestry Academy
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2022-06-28
Anticipated expiration: 2040-10-21
Also published as: CN112470898A

Abstract

The invention discloses a low-cost light-matrix container seedling cultivation method for apocarya, and belongs to the technical field of forest cultivation. According to the method, according to the growth rhythm of the carya illinoensis in the seedling stage and the biological characteristics of water and fertilizer requirements and the like, fertilizers with different formulas are supplied in different growth and development stages, the growth potential of seedlings is fully exploited, so that the engravable stock seedlings with developed root systems and appropriate height-diameter ratio can be cultivated, the aims of seedling cultivation in the current year, grafting in the current year, outplanting in the next year, shortening the seedling cultivation period by 1 year and reducing the cost by more than 70% are fulfilled, and the method has a high popularization and application value.

Description

Low-cost light-matrix container seedling cultivation method for apocarya

Technical Field

The invention belongs to the technical field of forest cultivation, and particularly relates to a low-cost light-matrix container seedling cultivation method for apocarya.

Background

Carya illinoensis is commonly called as pecan, is native to the United states, is a famous economic tree species of dried fruits in the world, and has huge market demand. China has a history of hundreds of years, and China Jiangsu, Yunnan, Zhejiang, Anhui and other places are all suitable for cultivating the carya illinoensis. However, the original period of fruit is long and the benefit is low because of the multi-purpose seedling planting in the past, which restricts the enthusiasm of planting the carya illinoensis. In recent years, scientific research institutes and enterprise operators break through improved variety grafting breeding technology, the apocarya cultivated by grafting seedlings is 6-8 years earlier than seedlings, early-maturing and high-yield cultivation of the apocarya is achieved, and rapid development of the apocarya industry in China is promoted.

The apocarya is a deep-rooted tree species, a traditional field bare-rooted seedling cultivation mode is adopted, lateral roots of seedlings are few, transplanting survival rate is low, container seedling cultivation is the best mode for cultivating apocarya seedlings, cultivation of improved-variety strong seedlings firstly needs robust stocks, the stock ground diameter can reach 0.8cm for grafting, and a conventional seedling cultivation mode needs 2 years to meet grafting requirements. The research on the aspect of the container seedling culture technology of the carya illinoensis in China has been made a preliminary progress, mainly focuses on the research on the aspects of container selection, substrate proportioning, fertilization and the like, and the research on the matching technologies such as low cost, light substrate development, root system regulation and control, water and fertilizer supply modes and consumption in different growth periods and the like of container seedling culture is relatively less, so that the problems of high container seedling culture cost, low seedling quality and the like exist. Therefore, in order to improve the cultivation quality of the apocarya container seedlings, shorten the seedling cultivation period and further reduce the seedling cultivation cost, the method selects a proper container and a root control mode meeting the seedling growth according to the biological characteristics of the apocarya and the growth rhythm of the seedlings, prepares a seedling cultivation substrate which is convenient to transport and has light weight and low cost by using wastes such as mushroom dregs and the like, respectively provides different formula fertilizers in the seedling emergence stage, the fast growth stage and the hardening stage of the seedlings, fully excavates the growth potential of the seedlings, and cultivates the stock seedlings for grafting with developed root systems and proper high-diameter ratio to form a water-fertilizer integrated cultivation technical system of the apocarya container seedlings with low cost and light substrate, and realizes innovation of an environment-friendly seedling cultivation mode for reducing weight.

The invention discloses a culture method of container seedlings of carya illinoensis. For example, the application number 201610330364.5, the name is a cultivation method of a root-rich seedling in a container of apocarya; the application number 2018100153378 discloses a method for cultivating seedlings of carya illinoensis in a container; application number 2018106865145, name is a cultivation method of a fine container seedling of carya illinoensis; the application number 2019103624298 discloses a two-section container seedling method of carya illinoensis; application No. 2019109686870, the name of a substrate for seedling raising of apocarya, a cultivating method of apocarya and a grafting method of apocarya, application No. 2019103175566, the name of a substrate formula for container seedling raising of apocarya, a preparation method and application thereof, and the like, wherein the contents of the container seedling raising and the like in the patent are different from the contents of the method essentially.

Through years of container seedling cultivation practice of carya illinoensis, by developing experimental researches such as container material and specification screening, seedling substrate formula development, seed germination acceleration, water control root, water and fertilizer precision management and the like, the applicant integrates and innovating a novel container seedling cultivation technology of carya illinoensis, and cultivates light substrate well-bred strong seedlings with balanced and uniformly developed lateral fibrous roots, wherein the average ground diameter of 1a seedlings reaches 1.26cm and exceeds 57.7% of the grafting thickness of 0.8cm, current seedling cultivation, current grafting and next nursery are realized, the seedling cultivation period is shortened by 1 year, and the cost is reduced by more than 70%.

Disclosure of Invention

The invention aims to: the invention aims to provide a low-cost and light-matrix container seedling water-fertilizer integrated cultivation method for carya illinoensis, namely, a seedling cultivation matrix which is light in weight and low in cost and convenient to transport is prepared by utilizing wastes such as mushroom dregs, and fertilizers with different formulas are respectively given to carya illinoensis seedlings in the growth and development period through water root control, so that the growth potential of seedlings is fully exploited, and grafting stock seedlings with developed root systems and proper high diameter ratio can be cultivated, and the purposes of cost reduction and efficiency improvement of carya illinoensis which is used for cultivating seedlings in the current year, grafting in the current year, outplanting in the next year, shortening the seedling cultivation period by 1 year and reducing the cost by more than 70% are achieved.

The technical scheme is as follows: in order to realize the aim, the invention discloses a low-cost light-matrix container seedling cultivation method of apocarya, which is characterized by comprising the following steps:

the cultivation method of the apocarya low-cost light-matrix container seedlings is characterized by comprising the following steps of:

(1) container selection and matrix preparation:

A. selecting a container: selecting a cylindrical gallon basin with the inner diameter of 25cm and the height of 35cm, and internally arranging non-woven bags with the same specification;

B. preparing a matrix: fully fermented and decomposed edible fungus residues, vinegar residues and peat are mixed according to the volume ratio of (50-70) m ³∶(20-40)m³∶(10-30)m³Uniformly mixing for later use;

(2) sand storage and sowing transplantation of seeds:

A. and (3) low-temperature sand storage of seeds: the method comprises the following steps of (1) harvesting Carya illinoensis seeds in autumn, putting the seeds into refrigeration at 0-5 ℃, soaking the seeds in 400-600 times of mancozeb 80% wettable powder for 5d-7d before sand preservation, mixing the seeds and sand according to the volume ratio of the seeds to wet sand of 1: 2, and carrying out sand preservation for 60 d-90 d, wherein the wet sand is diluted with 50% carbendazim wettable powder for 800-1000 times of liquid medicine and is sprayed for disinfection, the humidity is suitable for preventing water from being squeezed by hand, and the sand preservation temperature is 0-5 ℃;

B. sowing: sowing the seeds obtained in the step (2) A in a sand bed of a greenhouse with the temperature of 25 ℃ and the humidity of 80% for accelerating germination in the next early spring, and germinating the seeds in 15-20 days for later use;

C. transplanting the bud seedling: and (3) transplanting the seedlings in the step (2) B into the container in the step (1) when 2-3 leaves grow out, cutting 1/2 root systems during transplanting, and dipping the roots by using the prepared root growth promoting agent.

(3) And (3) water and fertilizer management:

A. controlling root by water: when the height of the container seedlings in the step (3) C reaches 10cm-15cm, placing the container seedlings in a non-leakage cement pool, and injecting clear water to keep the water level at 5 cm-10 cm all the time;

B. fertilizer supply: the fertilizer is conveyed into the seedling raising container through the water and fertilizer integrated facility. In the first stage, 1 time of root promoting fertilizer is sprayed every week from 4 months to 5 months, and the fertilizer is applied for 4 times; in the second stage, 0.4-0.8 g of high-N fast-growing fertilizer is applied to each plant for 1 time every week from the beginning of 6 months to the end of 6 months, and the application is performed for 4 times; in the third stage, 0.1-0.4 g of strong seedling fertilizer is applied to each plant for 1 time every week from 7 months to 8 months, and the application is performed for 4 times.

Further, the fungus dregs in the step (1) B are waste culture medium after pleurotus eryngii production, and the particle size is 1-5 mm; the vinegar residue is the leftover of vinegar made by Jiangsu Hengshun vinegar industry Co., Ltd, and is the residue of filtering after the fermentation of the vinegar made by glutinous rice, bran and rice chaff, and the grain diameter is 2 mm-4 mm.

Further, the root promoting agent in the step (2) C is NAA-NA40mg & L^-1 +IBA-K50mg·L^-1+ JFC-2 No. 10 mg. L^-1An aqueous solution of (a).

Further, the root promoting fertilizer in the step (3) B is a 1200-1800-time diluted seaweed fertilizer (liquid produced by Xuzhou Wanke Biotechnology Co., Ltd.) stock solution, and the components of the root promoting fertilizer are alginic acid which is not less than 21g/L and N + P₂O₅ +K₂O is more than or equal to 100 g/L; the fast-growing fertilizer is water soluble fertilizer and gamma-PGA (1-4%), wherein the water soluble fertilizer component N, P, K and the trace element proportion are 30-10-10+ TE, and the gamma-PGA component N + P₂O₅ +K₂O is more than or equal to 12 percent, HPLC is more than or equal to 25 percent; the seedling strengthening fertilizer is water soluble fertilizer and gamma-PGA (1-4%), wherein the water soluble fertilizer component N, P, K and the microelement are 10-30-20+ TE, the gamma-PGA component is N + P₂O₅ +K₂O≥12％，HPLC≥25％。

Advantageous effects

(1) Seedling raising effect of different container substrate formulas

Setting the volume ratio of the vinegar residue, the fungus residue and the peat as follows: 50: 20: 30, 60: 20, 70: 20: 10, labeled A1, A2, and A3, respectively (collectively referred to as A matrix); the volume ratio of the fungus dregs, the vinegar residue and the peat is as follows: 50: 20: 30, 60: 20, 70: 20: 10, 6 formulations labeled B1, B2, and B3, respectively (collectively referred to as B media), with a conventional formulation of peat, perlite, vermiculite at a 70: 20: 10 volume ratio Control (CK). Transplanting the bud seedlings of the pregermination apocarya into the formula substrate container in spring, and measuring related indexes after 1 year of growth.

A. Physical and chemical properties of seedling raising substrate

TABLE 1 substrate proportioning physical Properties

Note: the upper case letters in the same column indicate a 0.05 level difference for all substrates, and the lower case letters in the same column indicate a 0.05 level difference for the same substrate, as follows.

Basis weight and generalThe porosity is determined by the porosity of the matrix and the quantity of solid, and related researches show that the volume weight is 0.1-0.8g.cm^-3The plant growth medium has the ventilation porosity of 15-70%, the volume weight of the medium is low, and the good ventilation porosity is beneficial to the respiration of plant roots. As can be seen from Table 1, the volume weight and the ventilation porosity of the seedling substrate of each formula are in the range favorable for plant growth, and the volume weight and the ventilation porosity of A2, A3, B2 and B3 are not significantly different from those of a control; the maximum water holding capacity of the formula base is higher with B3, B2 and CK, and the maximum water holding capacity of the formula base is lower with the base formula A; the minimum water holding capacity is CK, B3 high. The physical properties of the formula matrix are close to those of the control.

TABLE 2 substrate proportioning chemistry

The chemical property of the substrate reflects the capability of supplying nutrients to the nursery stocks, and the chemical components directly influence the pH value of the substrate, and relevant researches show that the pH value is 5.8-7.0, so that the substrate is beneficial to the growth of plant roots, and the plants can easily absorb a large number of elements. The pH value of the substrate in the formula of the method is lower than that of a control, the contents of organic matters and N, P, K are both obviously higher than that of the control, and the organic matters and the total N of the added B2 and B3 substrates with more bacterial residue are higher, so that the absorption and utilization of nutrients during the growth of the carya illinoensis seedlings are facilitated.

The substrate of the formula of the mushroom dreg developed by the method has good physicochemical properties, and has good ventilation porosity, maximum water holding capacity and minimum water holding capacity; the organic matter, total nitrogen and quick-acting potassium content are high, and the fertilizer is suitable for the extension development of plant root systems and the nutrient requirement of seedling growth.

B. Cost of seedling substrate

The material used by the substrate is based on the local market selling price (table 4), and the seedling substrate price (table 5) is calculated according to the formula ratio of each substrate.

Table 4 reference table for market selling price of matrix material

TABLE 5 comparison of base prices for each formulation

The price of the formula substrate of the method is 145.0-262.0 yuan/m³Compared with the contrast, the price of the B-type matrix added with the mushroom dregs is lower by 43.9-69.0 percent.

C. Amount of growth of nursery stock

TABLE 3 different substrate formulations apocarya 1a raw seedling height and ground diameter growth amount

Note: different lower case letters in the same column indicate that the difference is at the 0.05 level (same below)

The height and the ground diameter of the seedlings are important indexes for measuring the growth of the plants, and the table 3 shows that different matrix formulas have obvious influence on the growth of overground parts of the apocarya seedlings. The maximum value of 1-year-old seedling height is 34.5cm treated by B2, the maximum value of ground diameter is 8.6mm treated by B3, wherein the maximum value of ground diameter of the seedling cultured by the formula substrate is 73.37 percent and 73.04 percent respectively, and the minimum value is 33.17 percent and 21.53 percent respectively. The seedling growth indexes are better when the medium is comprehensively treated by the fungi residues B2 and B3 with higher adding proportion.

Therefore, the invention prepares the seedling substrate by utilizing the easily-obtained and low-cost agricultural and forestry wastes such as the mushroom dregs and the like, has the physical and chemical properties favorable for the growth of seedlings, reduces the use amount of nonrenewable peat, obtains good seedling effect, realizes the resource-saving and environment-friendly production of the cultivation of the apocarya container seedlings, and has better popularization and application values in the actual production.

(2) Application effect of root promoting agent for bud seedling transplantation

On the basis of the experimental study on the treatment of the radicle of the carya illinoensis on the types and concentrations of hormones, clear water (CK) and NAA-NA40mg & L are arranged^-1 、IBA-K50mg·L^-1 、NAA-NA40mg·L^-1 +IBA-K50mg·L^-1And NAA-NA40 mg. L^-1 +IBA-K50mg·L^-1+ JFC-2 No. 10 mg. L^-1And waiting for 5 factors, and repeating the test for 30 strains in each cell for 4 times by adopting a single-factor random block test.

TABLE 4 Effect of root growth promotion agent treatment on Carya illinoensis seedling root growth

The use of the root promoting agent can obviously improve the growth of the total length of the root system of the seedling, the total volume of the root system and the average diameter of the root system. Test results show that root indexes of the apocarya seedlings under various combined treatments reach significant differences, the growth of the apocarya seedlings can be significantly promoted under the combined treatment of multiple hormones, the indexes such as the total length of the root system and the like are better treated by the combination 5, and the effect of getting twice the result with half the effort can be achieved by adding JFC-2 10 into the hormones.

(3) Precise management effect of water and fertilizer

A. Water root control treatment

Setting water levels to be 0cm, 5cm, 10cm and other 3 water root control treatments, placing the container seedlings in each water level when the height of the container seedlings reaches 10cm, adopting a single-factor random block test, repeating for 4 times, wherein 20 seedlings are planted in each cell. After the test is finished, 4 nursery stocks with consistent growth vigor are selected from each treatment cell, the nursery stocks are cleaned by clear water, and a WinRHIO STD 1600+ type root system image analysis system (REGENT company, Canada) is used for measuring root system indexes including the total root system length, the total root system surface area and the total root system volume.

TABLE 5 influence of water root control treatment on root growth of Carya illinoensis

As can be seen from Table 5, moisture significantly affected the growth of the root system of the carya illinoensis seedlings. The indexes such as the total length of the root system of the seedling in 1 year after anhydrous (contrast) treatment are the smallest, the root control effect at the water level of 5cm is the best, each index of the root system of the seedling is better, and the root length, the root area and the root volume under the water level control of 10cm are in a descending trend. The root system can be prevented from growing downwards by appropriate flooding, more adventitious roots can be induced to be generated by the root system base part nearby the flooding so as to achieve the purpose of root breaking and root system regeneration, but the space for root system growth is limited due to the reduction of the volume of the container matrix when the flooding is too high. Therefore, the method is suitable for flooding, not only can control roots and promote roots, but also can supplement water of container matrix, and achieves the effect of killing two birds with one stone. The method is simple and easy to operate, does not pollute the soil environment, and has remarkable progress compared with the traditional modes of controlling roots by air, breaking roots by copper carbonate and the like.

B. Effect of fertilizer application

4 factors of 4 levels such as root promoting fertilizer, fast growing fertilizer, seedling strengthening fertilizer, gamma-PGA and the like are set, and L is adopted₁₆ (4⁵) Orthogonal experimental design, 15 strains per cell, repeated 4 times. After the growth period is finished, the seedling height, ground diameter and root growth indexes of the seedlings are measured.

Results of orthogonal experiments

Test results show that the growth of seedlings can be promoted by applying the root promoting fertilizer, the fast growth fertilizer and the like with certain concentration in different growth periods of the seedling growth, and the combination 10 (the root promoting fertilizer is 1400 mg. L) is used in the test^-1+ fast-growing fertilizer 0.8g + strong seedling fertilizer 0.2g + gamma-PGA 3%), the seedling growth indexes are better, then the combination is 14, 11, 15, 5, 1, etc., the combination with poor seedling growth is 16, from the view of each factor concentration, the seedling growth amount is smaller when the fertilizer with lower or high concentration is applied, the related research considers that the nutrient absorption of the seedling is divided into 3 stages of poor cultivation, luxurious cultivation and toxic hazard, and the biomass and nutrient content of the seedling in the poor cultivation stage are increased along with the increase of the fertilizer application amount; luxury is no significant change in morphological characteristics, while nutrient content continues to rise; the toxicity is a significant decrease in both biomass and nutrient content. The proper fertilizer amount has obvious promotion effect on the biomass accumulation of the carya illinoensis container seedlings, but when the fertilizer amount is increased to a certain threshold value, the seedling growth amount is reduced, the fertilizer concentration is increased, the EC value in the container matrix is increased, and the seedling growth amount is increased Producing ion poisoning effects. The variety, the dosage and the N, P, K of the fertilizer and the proportion of trace elements are determined according to the growth characteristics of the seedlings in the container seedling cultivation of the carya illinoensis, the fertilizer cannot be applied blindly, and otherwise, certain elements in the seedlings are deficient or accumulated, so that the nutrition elements of the seedlings are unbalanced.

According to the method, through experimental research, according to the characteristics of water and fertilizer requirements of the carya illinoensis seedlings in different growth periods, formulated fertilizers and applied regulation and control technical measures of the carya illinoensis seedlings in each growth stage are developed, the nutrient requirement rules of the seedlings are consistent, the relation between water and nutrient supply and demand among the fertilizer requirements of the seedlings is well coordinated, the fertilizer loss and waste are avoided, and the maximization of the indexes of the seedlings in form, physiology, vitality and the like is achieved.

Drawings

FIG. 1 shows the growth of seedlings under different substrate formulations

FIG. 2 treatment of root growth differences with root growth promoters

FIG. 3 shows the growth of seedlings under different fertilization conditions (only partial pictures are provided due to space limitations, the left side of FIG. 3 shows the growth forms of seedlings No. 1, No. 5, No. 15, No. 11, No. 14 and No. 10 which are better fertilized respectively from left to right, and the right side of FIG. 3 shows the growth forms of seedlings No. 10 which are best fertilized and No. 16 which are worse).

Detailed Description

The following examples are only for the best cultivation of the 1 year old seedlings of carya illinoensis but are not intended to limit the invention thereto.

(1) Container selection and matrix preparation:

B. preparing a matrix: fully fermented and thoroughly decomposed pleurotus eryngii fungus residues, vinegar residues and peat are mixed according to the volume ratio of 70m³ ∶20m³ ∶10m³Uniformly mixing for later use;

(2) sand storage and sowing transplantation of seeds:

A. and (3) low-temperature sand storage of seeds: harvesting carya illinoensis seeds in autumn, refrigerating at 0-5 ℃, soaking the seeds in 600 times of mancozeb 80% wettable powder for 7 days before sand preservation, mixing the seeds and sand in a volume ratio of 1: 2 between the seeds and wet sand, sand preserving for 90 days, spraying the wet sand in 800 times of liquid medicine diluted by 50% carbendazim wettable powder for disinfection, wherein the humidity is suitable for preventing water from being squeezed by hands, and the sand preservation temperature is 0-5 ℃;

B. sowing: in the next early spring, sowing the seeds in the step (2) A in a sand bed of a greenhouse with the temperature of 25 ℃ and the humidity of 80 percent for accelerating germination, and germinating for 15-20 days for later use;

C. transplanting the bud seedlings: transplanting the seedlings in the step (2) B into the container in the step (1) when 2-3 leaves grow out, cutting 1/2 root system during transplanting, and using prepared NAA-NA40 mg. L ^-1 +IBA-K50mg·L^-1+ JFC-2 No. 10 mg. L^-1Dipping the root growth promoting agent.

(3) And (3) water and fertilizer management:

A. water root control: when the height of the container seedlings in the step (3) reaches 10cm-15cm, placing the container seedlings in a water-leakage-free cement pond, and injecting clear water to keep the water level at 5 cm-10 cm all the time;

B. fertilizer supply: the fertilizer is conveyed into the seedling raising container through the water and fertilizer integrated facility. In the first stage, 1 time of spraying the seaweed fertilizer stock solution to dilute 1400 times of the seaweed fertilizer stock solution every week from 4 months to 5 months, and applying the seaweed fertilizer stock solution for 4 times; in the second stage, N, P, K and trace elements in the proportion of 30-10-10+ 0.8g + gamma-PGA 3% are applied to each plant for 1 time every week from the beginning of 6 months to the end of 6 months and 4 times; in the third stage, N, P, K and trace element proportion of 10 < -30 > -20 < + > TE water-soluble fertilizer 0.2g < + > gamma-PGA 3 percent are applied to each plant for 4 times every week from the end of 7 months to the beginning of 8 months.

By adopting the method of the embodiment, the diameter of the container seedling of the 1-year-old carya illinoensis reaches 1.26cm, the height of the seedling is 44.58cm, and the total area and the total volume of the root system of the seedling respectively reach 887.67cm²And 17.12cm³And the seedlings are strong and exceed 57.5 percent of the requirement of 0.8cm on the grafting thickness of the stocks.

Claims

1. The cultivation method of the apocarya low-cost light-matrix container seedlings is characterized by comprising the following steps of:

(1) container selection and matrix preparation:

B. Preparing a matrix: fully fermented and decomposed edible fungus residues, vinegar residues and peat are mixed according to the volume ratio of (50-70) m³∶(20-40)m³∶(10-30)m³Uniformly mixing for later use;

(2) sand storage and sowing transplantation of seeds:

A. and (3) low-temperature sand storage of seeds: the method comprises the following steps of (1) harvesting Carya illinoensis seeds in autumn, putting the seeds into refrigeration at 0-5 ℃, soaking the seeds for 5d-7d in 400-600 times of mancozeb 80% wettable powder before sand preservation, mixing the seeds and sand according to the volume ratio of the seeds to wet sand of 1: 2, and carrying out sand preservation for 60 d-90 d, diluting the wet sand with 50% carbendazim wettable powder of 800-1000 times of liquid medicine for spraying and sterilizing, wherein the humidity is suitable for preventing water from being squeezed by hand, and the sand preservation temperature is 0-5 ℃;

C. transplanting the bud seedlings: transplanting the seedlings in the step (2) into the container in the step (1) when 2-3 leaves grow out from the seedlings in the step (2), cutting 1/2 root systems during transplanting, and dipping the roots by using a prepared root promoting agent;

(3) and (3) water and fertilizer management:

A. controlling root by water: when the height of the container seedlings in the step (3) reaches 10cm-15cm, placing the container seedlings in a water-leakage-free cement pond, and injecting clear water to keep the water level at 5 cm-10 cm all the time;

B. Fertilizer supply: the fertilizer is conveyed to a seedling raising container through a water and fertilizer integrated facility in a first stage, and is sprayed with a root promoting fertilizer for 1 time every week from 4 months to 5 months, and is applied for 4 times; in the second stage, 0.4-0.8 g of high-N fast-growing fertilizer is applied to each plant for 1 time every week from the beginning of 6 months to the end of 6 months, and the application is performed for 4 times; in the third stage, 0.1-0.4 g of strong seedling fertilizer is applied to each plant for 1 time every week from the bottom of 7 months to the beginning of 8 months, and the application is performed for 4 times;

the root promoting fertilizer in the step (3) B is a 1200-1800-time diluted seaweed fertilizer stock solution, and the components of the root promoting fertilizer are alginic acid more than or equal to 21g/L and N + P₂O₅+K₂O is more than or equal to 100 g/L; the fast-growing fertilizer is water soluble fertilizer plus gamma-PGA, gamma-PThe addition amount of GA is 1-4 wt%, wherein the water-soluble fertilizer component N, P, K and the trace element proportion are 30-10-10+ TE, and the gamma-PGA component N + P₂O₅+K₂O is more than or equal to 12 percent, HPLC is more than or equal to 25 percent; the seedling strengthening fertilizer is water-soluble fertilizer and gamma-PGA, the addition amount of the gamma-PGA is 1-4 wt%, wherein the proportion of water-soluble fertilizer component N, P, K and trace elements is 10-30-20+ TE, and the gamma-PGA component is N + P₂O₅ +K₂O≥12％，HPLC≥25％。

2. The method for cultivating the apocarya low-cost light-matrix container seedlings according to claim 1, which is characterized in that: the mushroom dregs in the step (1) B are waste culture medium materials which are discarded after pleurotus eryngii production, and the particle size is 1-5 mm; the vinegar residue is the leftover of vinegar made by Jiangsu Hengshun vinegar industry limited company, and is the residue filtered after the vinegar is made and fermented by glutinous rice and bran, and the grain diameter is 2 mm-4 mm.

3. The cultivation method of the carya illinoensis low-cost light-matrix container seedlings as claimed in claim 1, characterized in that: in the step (2) C, the root promoting agent is NAA-NA40 mg. L^-1+IBA-K50mg·L^-1+ JFC-2 No. 10 mg. L^-1An aqueous solution of (a).