CN111892934A - Soil conditioner for promoting growth of root system of acer truncatum, and preparation method and application thereof - Google Patents

Soil conditioner for promoting growth of root system of acer truncatum, and preparation method and application thereof Download PDF

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CN111892934A
CN111892934A CN202010817090.9A CN202010817090A CN111892934A CN 111892934 A CN111892934 A CN 111892934A CN 202010817090 A CN202010817090 A CN 202010817090A CN 111892934 A CN111892934 A CN 111892934A
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soil conditioner
biochar
bacterial manure
seedlings
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李小英
邱宗海
白雪
许彦红
李晓荣
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KUNMING HAIZHILING BIOTECHNOLOGY DEVELOPMENT CO LTD
Southwest Forestry University
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KUNMING HAIZHILING BIOTECHNOLOGY DEVELOPMENT CO LTD
Southwest Forestry University
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Abstract

The invention belongs to the technical field of soil conditioners, and particularly relates to a soil conditioner for promoting growth of root systems of acer truncatum, and preparation and application thereof. The invention provides a soil conditioner for promoting the growth of root systems of acer truncatum, which comprises biochar and bacterial manure; the mass ratio of the biochar to the bacterial manure is 20-35: 20 to 30. The soil conditioner provided by the invention can promote the growth of the root system of acer truncatum, can also obviously improve the high stem and thick growth amount of acer truncatum seedlings, improve the root-crown ratio and promote the morphological growth and development of the root system.

Description

Soil conditioner for promoting growth of root system of acer truncatum, and preparation method and application thereof
Technical Field
The invention belongs to the technical field of soil conditioners, and particularly relates to a soil conditioner for promoting growth of root systems of acer truncatum, and a preparation method and application thereof.
Background
Acer truncatum Bunge is a deciduous tree of Aceraceae (Aceraceae) genus, is a unique tree species of woody oil plants with ornamental and economic values, has high oil content (42-48%) in kernels, contains 5-7% of nervonic acid in oil, and has been used as a high-quality raw material for developing health products; the leaves also contain a large amount of beneficial bioactive substances, such as flavone, chlorogenic acid, polysaccharide, vitamins, amino acids, SOD and the like, and can be developed and utilized as medicinal raw materials and also can be produced into tea drink products; the wood is a high-quality material for manufacturing furniture, kernel oil meal is rich in protein, tannin extract can be extracted from bark, and the oil meal can be used as a new resource for extracting anti-tumor and acetylcholinesterase inhibitors.
The acer truncatum bunge has strong adaptability, has low requirement on the environment of soil, is a good ecological recovery tree species, and has important significance on ecological construction and environmental protection. The planting time of the acer truncatum is autumn and winter, and certain moisture is needed for planting. To improve the drought adaptability of acer truncatum, nutrition needs to be added to the root, so that the acer truncatum grows into a luxuriant root system, which is beneficial to the acer truncatum to utilize the root to hold water in dry seasons, thereby improving the drought tolerance of the acer truncatum. The traditional soil conditioner has the effects of adjusting the pH value of soil and increasing the looseness of the soil, and has no obvious promotion effect on the growth of the root system of the acer truncatum. The charcoal has carbon content of over 60%, small volume weight, large specific surface area, high porosity, high stability and high adsorption capacity, contains great amount of ions and alkaline matter, has certain effect of improving soil and controlling leaching loss of nitrogen and phosphorus nutrients in soil, and may be used in farm soil. However, the matched application of the biochar and the bacterial manure has not been reported in the research of growth and development of acer truncatum.
Disclosure of Invention
The invention aims to provide a soil conditioner for promoting the growth of the root system of acer truncatum, and a preparation method and application thereof.
In order to achieve the above object, the present invention provides the following technical solutions;
the invention provides a soil conditioner for promoting the growth of root systems of acer truncatum, which comprises biochar and bacterial manure; the mass ratio of the biochar to the bacterial manure is 20-35: 20 to 30.
Preferably, the particle size of the biochar is 0.5-3 mm.
Preferably, the bacterial manure comprises bacillus and actinomycetes; the effective viable count content of the bacterial manure is more than or equal to 200 hundred million/g.
The invention provides a preparation method of the soil conditioner in the technical scheme, which comprises the following steps: and mixing the biochar with the bacterial manure to obtain the soil conditioner.
Preferably, the step of sieving the biochar before mixing the biochar with the bacterial manure comprises the step of sieving the biochar.
Preferably, the preparation method of the bacterial fertilizer comprises the steps of mixing rice hulls, oil-tea camellia shells, corncobs and refrigerator brassica campestris to obtain a culture medium; and mixing the bacillus and the actinomycetes with a culture medium for fermentation to obtain the bacterial fertilizer.
Preferably, the mass ratio of the bacillus to the actinomycetes to the culture medium is 1-1.5: 1-1.5: 1000 to 1500;
the mass ratio of the rice hulls to the oil tea shells to the corncobs to the cold storage tail vegetables is 22-28: 3-10: 5-13: 65-45.
The invention also provides the application of the soil conditioner in the technical scheme or the soil conditioner prepared by the preparation method in the technical scheme in promoting the growth of the root system of acer truncatum.
Preferably, the application amount of the soil conditioner is 60-160 kg/mu, and the application mode is to apply the soil conditioner and the organic fertilizer in a mixed mode or in a mixed hole mode.
Preferably, the application amount and the application mode of the soil conditioner are adjusted according to the growth environment and the size of the seedlings, and the method specifically comprises the following steps:
when the seedlings are cultivated in nursery lands for 1-2 years, and the application mode is that a soil conditioner and an organic fertilizer are mixed for application, the application amount of the soil conditioner is 60-80 kg/mu;
when the seedlings are cultivated in nursery lands for 3-5 years, and the application mode is that a soil conditioner and an organic fertilizer are mixed for application, the application amount of the soil conditioner is 100-160 kg/mu;
when the seedlings are transplanted to the mountain for field planting for the seedlings under 5 years, the application mode is hole application, and the field planting is carried out according to the row spacing of 3-4 m multiplied by 4-5 m, the application amount of the soil conditioner is 1-2 kg per plant;
when the seedlings are transplanted to the mountain for field planting for more than 5 years, the application mode is hole application, and the field planting is carried out according to the row spacing of 4-5 m multiplied by 4 m-5 m, the application amount of the soil conditioner is 2-4 kg per plant.
The invention provides a soil conditioner for promoting the growth of root systems of acer truncatum, which comprises biochar and bacterial manure; the mass ratio of the biochar to the bacterial manure is 20-35: 20 to 30. The bacterial fertilizer contains various microbial flora, has the functions of nitrogen fixation, phosphorus dissolution, potassium dissolution and the like, greatly improves the effectiveness of elements such as N, P, K, Ca, Fe and the like in soil, limits the growth space of harmful bacteria and secretes antibacterial substances by numerous beneficial flora, reduces the occurrence of diseases, and in addition, the biochar is alkaline and has porous substances, so that the acid soil in the south can be improved, meanwhile, the pore structure of the biochar has stronger water absorption capacity, the granular structure in the soil can be obviously improved by the higher pore structure of the biochar, and the biochar can become a better fertilizer slow release carrier by improving the soil Cation Exchange Capacity (CEC), can control the slow release of nitrogen and phosphorus nutrients in the soil, and improves the utilization efficiency of acer truncatum to nitrogen and phosphorus. The results of the embodiment show that the soil conditioner provided by the invention can promote the growth of the root system of acer truncatum, can also obviously improve the high stem and thick growth amount of acer truncatum seedlings, improve the root-crown ratio and promote the morphological growth and development of the root system.
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FIG. 1 shows the comparison of stem thickness and plant height of seedlings treated differently.
Detailed Description
The invention provides a soil conditioner for promoting the growth of root systems of acer truncatum, which comprises biochar and bacterial manure; the mass ratio of the biochar to the bacterial manure is 20-35: 20 to 30.
The soil conditioner of the invention further preferably comprises 22-33 parts of biochar by mass, and more preferably 25-30 parts. In the invention, the specific surface area of the biochar is more than 60m2A pore volume of more than 1.0e-02cm3The carbon content is more than 60 percent, and the particle size of the biochar is preferably 0.5-3 mm. The biochar is preferably Yunnan rubber charcoal, coconut shell charcoal or bamboo charcoal, the specific surface area and the pore volume of the biochar are larger than 2-3 times of those of common biochar, and the larger the specific surface area is, the stronger the water holding capacity is, and the stronger the slow-release nutrition capacity is. The biochar is alkaline, can improve acid soil, and has a pore structure and stronger water absorption capacity, the granular structure in the soil can be obviously improved by the higher pore structure of the biochar, and the soil Cation Exchange Capacity (CEC) is improved to enable the biochar to become a better fertilizer slow release carrier, so that nitrogen and phosphorus nutrient substances in the soil can be controlled to be slowly released, and the utilization efficiency of the soil to nitrogen and phosphorus is improved.
Based on the mass parts of the biochar, the soil conditioner further preferably comprises 18-28 parts of bacterial manure, and more preferably 19-27 parts of bacterial manure; the effective viable count content of the bacterial manure is preferably more than or equal to 200 hundred million/g, and more preferably 200-300 hundred million/g. In the present invention, the bacterial manure preferably comprises bacillus and actinomycetes; the effective viable count content of the bacillus is preferably 100-200 hundred million/g; the effective viable count content of the actinomycetes is preferably 20-50 hundred million/g. The preparation method of the bacterial manure preferably comprises the following steps: mixing rice hulls, oil tea shells, corncobs and refrigerator brassica campestris to obtain a culture medium; and mixing the bacillus and the actinomycetes with a culture medium for fermentation to obtain the bacterial fertilizer. In the invention, the mass ratio of the bacillus to the actinomycetes to the culture medium is preferably 1-1.5: 1-1.5: 1000-1500, more preferably 1:1:1000, the sources of the bacillus and the actinomycetes are not limited, and the bacillus and the actinomycetes which are conventional in the field can be adopted; the mass ratio of the rice hulls to the oil tea shells to the corn cobs to the cold storage tail vegetables is preferably 22-28: 3-10: 5-13: 65-45, more preferably 25: 5: 10: 60, adding a solvent to the mixture; the fermentation is preferably aerobic fermentation; the fermentation conditions are preferably: the temperature is 25-35 ℃, the humidity is 40-60%, and the time is 10-15 days. The bacterial fertilizer contains various microbial flora, has the functions of nitrogen fixation, phosphate dissolution, potassium dissolution and the like, greatly improves the effectiveness of elements such as N, P, K, Ca, Fe and the like in soil, and has a plurality of beneficial microbial flora which limits the growth space of harmful bacteria and secretes bacteriostatic substances, thereby reducing the occurrence of diseases.
The invention provides a preparation method of the soil conditioner in the technical scheme, which comprises the following steps: and mixing the biochar with the bacterial manure to obtain the soil conditioner. The step of screening the biochar before mixing the biochar with the bacterial manure is preferably included. The particle size and the specific surface area of the biochar can be guaranteed through sieving treatment, the biochar cannot be too thin, such as smaller than 0.5mm, and also cannot be too thick, such as larger than 3mm, the slow release of nitrogen and phosphorus nutrients in soil can be controlled mainly for the influence of a soil granular structure, and the utilization efficiency of the soil on the nitrogen and phosphorus is improved.
The invention also provides the application of the soil conditioner in the technical scheme or the soil conditioner prepared by the preparation method in the technical scheme in promoting the growth of the root system of acer truncatum. In the invention, the root system of the acer truncatum is preferably the root system of acer truncatum seedlings, the application amount of the soil conditioner is preferably 60-160 kg/mu, and the application mode is that the soil conditioner and an organic fertilizer are mixed for application or mixed for hole application.
The invention preferably adjusts the application amount and the application mode of the soil conditioner according to the growth environment and the size of the seedlings, and specifically comprises the following steps:
when the seedlings are cultivated in nursery lands for 1-2 years, and the application mode is that a soil conditioner and an organic fertilizer are mixed for application, the application amount of the soil conditioner is 60-80 kg/mu; the acer truncatum bunge is a deciduous tree species, and only seedlings emerge and are planted in autumn and winter, so that 1-2-year-old seedlings are seedlings in 1 growing season or 2 growing seasons. The root system damage can be caused when the seedlings leave the nursery, and the soil conditioner can promote a large number of fibrous roots to be generated in 1 year of planting the acer truncatum seedlings, and is favorable for absorbing and utilizing water and fertilizer.
When the seedlings are cultivated in nursery lands for 3-5 years, and the application mode is that a soil conditioner and an organic fertilizer are mixed for application, the application amount of the soil conditioner is 100-160 kg/mu;
when the seedlings are transplanted to the mountain for field planting for the seedlings under 5 years, the application mode is hole application, and the field planting is carried out according to the row spacing of 3-4 m multiplied by 4-5 m, the application amount of the soil conditioner is 1-2 kg per plant;
when the seedlings are transplanted to the mountain for field planting for more than 5 years, the application mode is hole application, and the field planting is carried out according to the row spacing of 4m multiplied by 4-5 m, the application amount of the soil conditioner is 2-4 kg per plant.
The soil conditioner for promoting the growth of the root system of acer truncatum, the preparation method and the application thereof provided by the invention are explained in detail by the following embodiments, but the soil conditioner is not to be construed as limiting the protection scope of the invention.
The biochar in the embodiment is coconut shell carbon and is purchased from Fujian Yongan optimal carbon industry Co Ltd for production, and the preparation method of the bacterial manure comprises the steps of mixing rice hulls, oil tea shells, corncobs and refrigerator tailstocks to obtain a culture medium; mixing the bacillus and actinomycete original bacteria liquid with a culture medium, and mixing in a mass ratio of 1:1:1000 for fermentation to obtain the bacterial fertilizer. The mass ratio of the rice hulls to the oil tea shells to the corn cobs to the cold storage tail vegetables is preferably 25: 5: 10: 60, adding a solvent to the mixture; the fermentation is preferably aerobic fermentation; the fermentation conditions are as follows: the temperature is 25-35 ℃, the humidity is 40-60%, and the fermentation time is 10-15 days.
(the effective strains are bacillus and actinomycetes, the effective viable count content is more than or equal to 200 hundred million/g, the effective viable count content of the bacillus is more than 150 hundred million/g, and the effective viable count content of the actinomycetes is more than 50 hundred million/g).
Example 1
A soil conditioner for promoting growth of Acer Truncatum Bunge root system comprises biochar and bacterial manure; the mass ratio of the biochar to the bacterial manure is 20: 20.
and (3) after 20kg of biochar is screened by a 2mm sieve, mixing with 20kg of bacterial manure to obtain the soil conditioner for promoting the root growth of the acer truncatum bunge.
Example 2
A soil conditioner for promoting growth of Acer Truncatum Bunge root system comprises biochar and bacterial manure; the mass ratio of the biochar to the bacterial manure is 20: 30.
20kg of biochar is sieved by a 2mm sieve and then mixed with 30kg of bacterial manure to obtain the soil conditioner for promoting the growth of the root system of the acer truncatum bunge.
Example 3
A soil conditioner for promoting growth of Acer Truncatum Bunge root system comprises biochar and bacterial manure; the mass ratio of the biochar to the bacterial manure is 30: 20.
30kg of biochar is sieved by a 2mm sieve and then mixed with 20kg of bacterial manure to obtain the soil conditioner for promoting the growth of the root system of the acer truncatum bunge.
Example 4
A soil conditioner for promoting growth of Acer Truncatum Bunge root system comprises biochar and bacterial manure; the mass ratio of the biochar to the bacterial manure is 30: 30.
30kg of biochar is sieved by a 2mm sieve and then mixed with 30kg of bacterial manure to obtain the soil conditioner for promoting the growth of the root system of the acer truncatum bunge.
Comparative examples 1 to 11
A contrast modifier was prepared in the manner of example 1, except that the mass ratio of biochar to bacterial manure was different, and the mass ratios of biochar and bacterial manure in comparative examples 1-11 are shown in Table 1.
TABLE 1 design of the experiments
Figure BDA0002633105190000061
Application example 1
1-1 test design
Annual acer truncatum seedlings with consistent growth vigor are selected for the test; the diameter of the flowerpot for the test is 25cm, the height of the flowerpot is 30cm, and 1.3kg of light substrates (perlite: peat soil: red soil: 7.5: 0.5: 2) with the same amount and the same proportion are filled in each flowerpot. The matrix material is spring city brand expanded perlite, Danish peaty peat soil, the tested red soil has the pH value of 6.76, the content of hydrolysis nitrogen of 114.2mg/kg, the content of organic matters of 21.74g/kg, the content of quick-acting potassium of 352.74mg/kg and the content of quick-acting phosphorus of 36.36 mg/kg.
The method adopts pot experiment, 16 treatments are arranged totally, the acer truncatum seedlings are transplanted in 2018 in 12 months and 18 days, the average plant height is 30.46 +/-3.2 cm, and the average stem thickness is 4.43 +/-0.52 mm. Before transplanting, different soil conditioners are applied according to the dosage relation shown in the table 1, wherein CK is blank control.
1-2 sample collection and determination method
Measuring the pH value of the red soil to be tested by using a pH meter; the organic matter is heated externally by potassium dichromate-sulfuric acid; the soil alkaline hydrolysis nitrogen adopts a diffusion absorption method; the quick-acting phosphorus in the soil is extracted by hydrochloric acid-ammonium fluoride; soil quick-acting potassium ammonium acetate leaching-flame photometry method.
From the transplanting date of the seedlings to the end of 2 months in 2019, the seedlings are all in a growth dormancy stage, the seedlings sprout and germinate successively in the last 3 months in 2019, the root indexes of the seedlings are measured in the late growth stage of the seedlings (18 months in 2019), 3 seedlings with uniform growth vigor are selected for measurement in each treatment, and no fertilization treatment is performed in the test period, and only regular watering is performed.
The plant height (height from the surface of the substrate to the bottom of the terminal bud) is measured by a ruler (with the precision of 1 mm); the stem thickness was measured with a vernier caliper (precision 0.1 mm); the area of the single plant leaf is measured by Li-300A; root length, total root surface area, total root volume, root mean diameter using root system analysis system (WinRhizo Pro LA 2400). Each index was measured in duplicate 3 times. Test data were data processed and graphed using WPS 2010 and statistically analyzed using SPSS 22(IBM SPSS statistical) software.
1-3 test results
The difference of the growth amounts of seedlings in different treatments is shown in table 2 and fig. 1, the stem thickness and the plant height of the seedlings of all examples 1-4 and comparative examples 1-11 are improved compared with the CK control, wherein the plant height and the stem thickness of the seedlings are obviously improved in examples 2 and 4, and the growth amounts of the plant height (stem thickness) of examples 2 and 4 are respectively improved by 62.28% (17.89%) and 59.79% (24.54%) compared with the CK, which shows that the raw soil improver can better improve the growth amount of acer truncatum.
TABLE 2 difference in growth of seedlings treated differently
Figure BDA0002633105190000081
The biomass and root cap ratio differences of seedlings treated differently are shown in Table 3, and the fresh weight of the average leaves of the seedlings treated differently is the rule of biochar and bacterial manure mixed application treatment (8.23g) > biochar application treatment (5.43g) > bacterial manure application treatment (4.94g) > CK (4.58 g); the relation of the fresh weight of the average stem is the rule that the biochar and bacterial manure are applied in a matched mode (6.57g), the biochar is applied in a single mode (4.42g), the CK (3.79g) and the bacterial manure are applied in a single mode (2.39 g); the relation of the fresh weight of the average roots is the rule of biochar and bacterial manure mixed application treatment (34.96g) > CK (22.04g) > single application of biochar treatment (20.19g) > single application of bacterial manure treatment (17.70g), and the relation of the root-crown ratio is biochar and bacterial manure mixed application treatment (2.66) > CK (2.63) > single application of bacterial manure treatment (2.44) > single application of biochar treatment (2.16); wherein the fresh weight of the leaves is obviously improved by T7 treatment, which is 204.80% higher than CK; the treatment of T12 obviously improves the fresh weight of stems, leaves and root caps, and respectively improves 264.16%, 163.25% and 17.73% compared with CK, which shows that the soil conditioner can improve the biomass of seedlings and increase the output value of raw materials for application and production of acer truncatum seedlings.
TABLE 3 differences in biomass and root-cap ratio of seedlings treated differently
Figure BDA0002633105190000091
The differences of root system shapes and seedling growth indexes of seedlings treated differently are shown in Table 4The relation of the average total root length of the treatment is the rule that the biochar and bacterial manure are subjected to mixed application treatment (2818.15mm) > CK (2241.11mm) > single application of bacterial manure treatment (1430.58mm) > single application of biochar treatment (1290.88 mm); the total root surface area is treated by the combination of biochar and bacterial manure (538.83 cm)2)＞CK(424.31cm2) Biochar treatment alone (310.70 cm)2) The bacterial manure is applied singly (271.19 cm)2) The rule of (2); the average total root volume is in the relationship of biochar and bacterial manure in the process of applying (8.45 cm)3)＞CK(6.39cm3) Biochar treatment (6.18 cm) is applied singly3) The bacterial manure is applied singly (4.16 cm)3) The rule of (2); the relation of the average diameter of roots is the rule of single application of biochar treatment (0.81mm) > biochar and bacterial manure mixed application treatment (0.68mm) > single application of bacterial manure treatment (0.61mm) > CK (0.6 mm); the average seedling quality index is in a size relation of a rule that biochar and bacterial manure are applied in a matched mode (0.67mm) > CK (0.46) > single bacterial manure application (0.40mm) > single biochar application (0.38 mm); wherein the T15 (example 4) treatment significantly increased root length, total root surface area, 78.96% and 67.94% respectively over CK; the total root volume is obviously improved by the T12 treatment, and is improved by 139.91% compared with CK; t5 remarkably improves the average root diameter, which is improved by 63.33% compared with CK, and indicates that the growth of the root system of acer truncatum cannot be promoted by applying biochar or bacterial manure alone, the soil conditioner can stimulate the fertilizer efficiency of the bacterial manure and promote the growth of the root system of seedlings, wherein the quality index of seedlings treated by T12 (embodiment 2) is the largest, and the comprehensive quality of the seedlings is remarkably improved by treating T12.
TABLE 4 influence of different treatments on root morphology of Acer Truncatum Bunge
Figure BDA0002633105190000101
Figure BDA0002633105190000111
The correlation among the growth indexes of the seedlings is shown in table 5, and the plant height is in very significant positive correlation with the fresh weight and the volume of roots; the stem thickness is in positive correlation with the total root length and the quality index of the nursery stock; the fresh weight of leaves, the fresh weight of stems and the quality index of seedlings are in obvious positive correlation; the total root length, the total root volume and the seedling quality index are in a positive correlation, which shows that the soil conditioner has a remarkable comprehensive effect on the growth of acer truncatum seedlings, can promote the overground and underground part of the seedlings to grow simultaneously, and can achieve the aim of cultivating high-quality strong seedlings.
TABLE 5 Pearson correlation coefficient of each growth index of Acer truncatum seedlings
Figure BDA0002633105190000112
Note: significant correlation at 0.01 level (double-sided), significant correlation at 0.05 level (double-sided).
The embodiments show that the soil conditioner provided by the invention can promote the growth of the root system of acer truncatum, can also obviously improve the high stem and thick growth amount of acer truncatum seedlings, improve the root-crown ratio and promote the morphological growth and development of the root system.
Although the present invention has been described in detail with reference to the above embodiments, it is only a part of the embodiments of the present invention, not all of the embodiments, and other embodiments can be obtained without inventive step according to the embodiments, and the embodiments are within the scope of the present invention.

Claims (10)

1. A soil conditioner for promoting the growth of the root system of acer truncatum, which is characterized by comprising biochar and bacterial manure;
the mass ratio of the biochar to the bacterial manure is 20-35: 20 to 30.
2. The soil conditioner according to claim 1, wherein the biochar has a particle size of 0.5 to 3 mm.
3. A soil amendment according to claim 1, wherein the bacterial manure comprises bacillus and actinomycetes;
the effective viable count content of the bacterial manure is more than or equal to 200 hundred million/g.
4. A method of producing a soil amendment according to any one of claims 1 to 3, comprising: and mixing the biochar with the bacterial manure to obtain the soil conditioner.
5. The method of claim 4, wherein the step of sieving the biochar before mixing the biochar with the bacterial manure comprises sieving the biochar.
6. The preparation method of the bacterial manure according to claims 4-5, characterized in that the preparation method of the bacterial manure comprises mixing rice hulls, oil-tea camellia shells, corncobs and refrigerator brassica campestris to obtain a culture medium; and mixing the bacillus and the actinomycetes with a culture medium for fermentation to obtain the bacterial fertilizer.
7. The preparation method according to claim 6, wherein the mass ratio of the bacillus to the actinomycete to the medium is 1-1.5: 1-1.5: 1000 to 1500;
the mass ratio of the rice hulls to the oil tea shells to the corncobs to the cold storage tail vegetables is 22-28: 3-10: 5-13: 65-45.
8. The application of the soil conditioner as claimed in any one of claims 1 to 3 or the soil conditioner prepared by the preparation method as claimed in any one of claims 4 to 7 in promoting the growth of the root system of acer truncatum.
9. The application of claim 8, wherein the application amount of the soil conditioner is 60-160 kg/mu, and the application mode is mixed application or hole application of the soil conditioner and organic fertilizer.
10. The use according to claim 8 or 9, characterized in that the application amount and the application mode of the soil conditioner are adjusted according to the growth environment, size and application mode of the seedlings, and specifically:
when the seedlings are cultivated in nursery lands for 1-2 years, and the application mode is that a soil conditioner and an organic fertilizer are mixed for application, the application amount of the soil conditioner is 60-80 kg/mu;
when the seedlings are cultivated in nursery lands for 3-5 years, and the application mode is that a soil conditioner and an organic fertilizer are mixed for application, the application amount of the soil conditioner is 100-160 kg/mu;
when the seedlings are transplanted to the mountain for field planting for the seedlings under 5 years, the application mode is hole application, and the field planting is carried out according to the row spacing of 3-4 m multiplied by 4-5 m, the application amount of the soil conditioner is 1-2 kg per plant;
when the seedlings are transplanted to the mountain for field planting for more than 5 years, the application mode is hole application, and the field planting is carried out according to the row spacing of 4-5 m multiplied by 4-5 m, the application amount of the soil conditioner is 2-4 kg per plant.
CN202010817090.9A 2020-08-14 2020-08-14 Soil conditioner for promoting growth of root system of acer truncatum, and preparation method and application thereof Pending CN111892934A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114846944A (en) * 2022-05-26 2022-08-05 辽宁工程技术大学 Soil conditioner optimization method for promoting growth and physiological characteristics of elymus palustris in sandy land
CN115191168A (en) * 2022-08-05 2022-10-18 文山苗乡三七科技有限公司 Method for restoring pseudo-ginseng continuous cropping soil biochar

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
白雪等: "《添加生物炭与菌肥的复合基质对元宝枫幼苗生长的影响》", 《西南林业大学学报》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114846944A (en) * 2022-05-26 2022-08-05 辽宁工程技术大学 Soil conditioner optimization method for promoting growth and physiological characteristics of elymus palustris in sandy land
CN115191168A (en) * 2022-08-05 2022-10-18 文山苗乡三七科技有限公司 Method for restoring pseudo-ginseng continuous cropping soil biochar

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Application publication date: 20201106