CN115226455A

CN115226455A - Fertilizing method for conditioning banana continuous cropping obstacle soil

Info

Publication number: CN115226455A
Application number: CN202210861092.7A
Authority: CN
Inventors: 符红文
Original assignee: Hainan Bao Lvchun Agricultural Development Co ltd
Current assignee: Hainan Bao Lvchun Agricultural Development Co ltd
Priority date: 2022-07-22
Filing date: 2022-07-22
Publication date: 2022-10-25

Abstract

The invention discloses a fertilizing method for conditioning banana continuous cropping obstacle soil, which comprises the following steps: (1) Crushing banana root systems and straws on the banana land with continuous cropping obstacles, and then spreading the crushed banana root systems and straws on the ground surface; (2) ploughing the organic fertilizer to a soil plough layer; (3) mixing and spraying the microbial inoculum, the compound fertilizer and water to the ground surface; the microbial inoculum comprises paecilomyces lilacinus, bacillus subtilis, trichoderma longibrachiatum, bacillus megaterium and bacillus amyloliquefaciens; (4) controlling soil humidity by 8-20% for 5-10 days; (5) According to the steps (3) and (4), applying the microbial inoculum for 1 time every 15-30 days after the banana is colonized; spraying the microbial inoculum for 1 time every 15 to 30 days. The invention can relieve the problems of unbalanced and acidified soil nutrients, reduce the content of harmful microorganisms in continuous cropping soil, reduce the incidence of diseases and insect pests such as root-knot nematode, wilt, scab and the like, improve the index of disease-resistant defense enzymes of bananas by induction, improve the yield and quality of bananas, and effectively eliminate the continuous cropping obstacle of bananas.

Description

Fertilizing method for conditioning banana continuous cropping obstacle soil

Technical Field

The invention relates to the technical field of soil improvement, in particular to a fertilizing method for conditioning banana continuous cropping obstacle soil.

Background

The continuous cropping obstacle refers to the abnormal growth and development of crops caused by continuously cultivating the same crop or closely related crops on the same soil. With the growth of the planting age of bananas, the number of beneficial microorganisms in soil is reduced, the pathogens of soil-borne diseases and leaf diseases are accumulated, and the soil fertility is reduced, so that banana plants grow slowly, continuous cropping obstacles are increasingly prominent, and diseases such as wilt, root-knot nematode and root rot are developed.

In the prior art, most methods for solving the continuous cropping obstacle of the bananas carry out circular rotation with other crops, namely, after the bananas are harvested in a banana field with the continuous cropping obstacle, root systems are dug, straws are cleaned, one or more other crops are planted after plowing and fertilizing, and the bananas are replanted after one or more crops. The technology belongs to the technology, such as the invention patent with the application number of CN201510290176.X, the cultivation method for preventing and controlling continuous cropping obstacles of bananas by banana-rice-pineapple rotation, the invention patent with the application number of CN201410018023.5, the cultivation method for preventing and controlling banana wilt by rice-banana rotation and adding rice straw, the invention patent with the application number of CN201510366449.4, the cultivation method for preventing and controlling banana plant pathogenic nematode diseases by rotation, the invention patent with the application number of CN201410017748.2, and the cultivation method for recovering the planting of bananas in a waste banana garden. According to the patent literature, the method can effectively improve the soil physicochemical property of the banana land with continuous cropping obstacles, eliminate acidification hardening, reduce the number of microorganisms and pests causing banana plant diseases and insect pests, and restore the soil micro-ecological environment of the banana land. However, the time for planting bananas is delayed during rotation, and the land planting income is reduced. In other words, this technique to eliminate the obstacle to continuous cropping of bananas is at the cost of reducing the income of banana planting. The method is unacceptable for many growers of large-breed banana gardens, particularly the large loss of the non-bred bananas is difficult to compensate by using low-value and cheap crops such as rice, pineapples and sugarcanes for crop rotation.

The occurrence period of the banana continuous cropping obstacle varies with different regions, banana varieties and management modes, but the common occurrence period is one year, once the continuous cropping obstacle occurs, the loss reduction performance of banana planting occurs, so that the yield is reduced year by year, the plant diseases and insect pests are increased year by year, the banana quality is not as good as one year, the planting cost is higher than one year, and the benefit is lower than one year. According to investigation, some banana plantations are planted after continuous cropping obstacles occur, and a grower uses a large amount of chemical fertilizers and pesticides to obtain the current benefits regardless of the performance of the continuous cropping obstacles, so that the soil acidification and hardening speed is increased day by day, and the soil micro-ecological environment is accelerated to deteriorate.

On one hand, although the prior art for eliminating the banana continuous cropping obstacle has effects in a small range, for example, the invention patent of 'organic preparation for disinfecting the banana continuous cropping obstacle soil and application' with the application number of CN201710315055.5 provides a method for relieving the banana continuous cropping obstacle by using an organic preparation and a film covering mode, but the period is as long as 3-4 weeks, the agricultural operation of film covering and film removing is complicated, and the invention patent of 'a soil disinfection method for preventing and treating soil-borne diseases' with the application number of CN201811185135.4 provides a relatively complicated method for anaerobic disinfection and film covering, so that the serious popularization difficulty exists.

On the other hand, the problem of banana continuous cropping obstacle is increasingly serious, so that how to simply, efficiently and environmentally condition continuous cropping obstacle soil is not easy from the aspect of supplementing beneficial microorganisms to soil, the prior art usually focuses on the nutrition required by plant application, but ignores the effect that the soil humidity, temperature and nutrition conditions obviously influence the propagation and secretion of active substances to resist diseases and pests after the beneficial microorganisms are applied to the soil. Furthermore, the prior art often only has certain effect on preventing and treating nematode diseases and blight, but has limited effect on preventing and treating diseases such as scab and the like. In conclusion, another simple, convenient, rapid, green and environment-friendly technology for conditioning continuous cropping obstacle soil by cooperatively applying microbial agents, fertilizers and organic fertilizers must be developed to overcome the defect.

Disclosure of Invention

Therefore, the invention provides a method for conditioning the soil with the continuous cropping obstacles of bananas, which is used for quickly eliminating or greatly reducing main pathogens such as blight germs, root-knot nematodes and the like in the soil layer which cause the continuous cropping obstacles of bananas, and various overground disease pathogens such as anthracnose, scab, leaf spot and the like in the residues of the bananas with soil surfaces, effectively reducing the morbidity, enhancing the disease resistance of the bananas, ensuring the continuous planting, stable and high yield of the bananas, improving the quality, and fully exerting the utilization value of the land to make up for the defects in the prior art.

The scheme of the invention comprises the following contents:

a fertilizing method for conditioning soil with banana continuous cropping obstacles comprises the following steps:

(1) Crushing banana roots and straws on the banana land with continuous cropping obstacles, and then scattering the crushed banana roots and straws on the land surface;

(2) Ploughing the organic fertilizer to a soil plough layer;

(3) Mixing a microbial agent, a compound fertilizer and water, and spraying the mixture to the ground surface; the microbial agent comprises paecilomyces lilacinus, bacillus subtilis, trichoderma longibrachiatum, bacillus megaterium and bacillus amyloliquefaciens;

(4) Controlling the soil humidity at 8-20% for 5-10 days;

(5) According to the methods in the steps (3) and (4), 1 time of microbial agent is applied every 15-30 days after the bananas are colonized;

(6) After the banana is colonized, the microbial agent is applied for 1 time every 15-30 days.

Preferably, in the step (3), the dosage of the microbial agent is 5-15kg per mu, and the dosage of the compound fertilizer is 5-10kg per mu.

Preferably, in the step (5), the dosage of the microbial inoculum is 5-15kg per mu.

Preferably, the microbial agent: the bacillus amyloliquefaciens comprises, by weight, 1-5 parts of paecilomyces lilacinus, 5-10 parts of bacillus subtilis, 1-5 parts of trichoderma longibrachiatum, 10-20 parts of bacillus megaterium and 10-20 parts of bacillus amyloliquefaciens.

Preferably, the organic fertilizer is prepared by composting and fermenting excrement and fiber materials in a mass ratio of 1:2, and the organic matter content is more than or equal to 50%;

preferably, the manure comprises 1-10 parts by weight of pig manure, 1-10 parts by weight of chicken manure and 10-30 parts by weight of sheep manure;

preferably, the fibrous material comprises manioc waste and/or coconut coir.

Preferably, in the step (2), the using amount of the organic fertilizer is 1000-3000 kg/mu.

Preferably, the compound fertilizer is a nitrogen-phosphorus-potassium compound fertilizer.

Preferably, in step (5), the microbial agent is continuously administered 5 to 10 times.

Preferably, in step (6), the microbial agent is continuously applied 8 to 20 times.

The biological control has the advantages of environmental protection and no pesticide residue and harm. The paecilomyces lilacinus is an excellent biocontrol bacterium for preventing and controlling root-knot nematodes, has obvious growth promoting and quality improving effects, but cannot realize durable prevention and control on blight; the bacillus subtilis and the bacillus amyloliquefaciens with different antagonistic mechanisms and excellent biocontrol bacteria for the blight are adopted, and the bacillus megaterium, the paecilomyces lilacinus and the like with remarkable growth promoting effect and disease preventing effect are used in a combined mode, so that the function complementation is realized, and the diseases during the continuous cropping period of the bananas are jointly prevented and treated. However, the problems that diseases continuously occur on the continuous cropping land of bananas and the diseases occur in different periods cannot be solved due to the fact that the disease types and incidence rates of the bananas on the continuous cropping land are higher than those of non-continuous cropping sitting soil, and germs survive in tissue residues such as stems and leaves of the harvested bananas and soil and affect the planting of the bananas in the next round; however, the banana field in tropical regions causes rapid evaporation of soil moisture due to high air temperature, and limits horizontal and vertical diffusion distribution and long-term colonization of the microorganisms in soil layers. The invention crushes banana root systems, straws and the like, spreads the crushed banana root systems, the spray belts are adopted to supplement soil moisture, the soil humidity is kept, meanwhile, the microbial agent is applied in combination with the organic fertilizer and the chemical fertilizer, the nutrition of the soil moisture, the organic fertilizer and the compound fertilizer is utilized to accelerate the propagation of beneficial microorganisms and the survival of long-term colonization, the problems can be well solved, and the disease of the banana continuous cropping land can be continuously prevented and controlled for a long time.

Compared with the prior art, the invention has the beneficial effects that: the banana tree land is treated in the same year, planted in the same year, does not need to be crop-rotated or covered with film on the land surface, is simple and convenient to operate, high in efficiency, short in period and remarkable in advantages, can be used for continuously utilizing banana land, stabilizes the yield and quality, improves the quality and fully exerts the utilization value of the land.

By the synergistic application of the organic fertilizer, the microbial agent and the compound fertilizer, beneficial microorganisms are diffused and propagated in soil, the continuous cropping obstacle of the banana field can be effectively eliminated, and the morbidity of diseases and insect pests such as banana soil-borne wilt, root-knot nematode, leaf scab, anthracnose, leaf spot and the like caused by the banana soil-borne wilt can be greatly reduced. The method can also effectively induce and improve the activity of the banana defensive enzyme.

The invention has no pollution to the land and the environment, can continuously improve the soil, and is green and environment-friendly.

Detailed Description

In order to better understand the technical content of the invention, specific examples are provided below to further illustrate the invention.

The microbial agent and the organic fertilizer are produced by Hainan Bao Luchun agriculture development Co. The number of effective viable bacteria is more than or equal to 50 hundred million/g.

The effective content of the compound fertilizer is more than or equal to 45 percent, wherein N, P ₂ O、K ₂ The O content is 15% in all cases, and the products are commercially available.

Disease incidence (%) = (number of diseased plants/total number of plants) × 100%.

The content of pathogenic bacteria of banana wilt in soil is detected according to the following reference documents: chen Jinghua, zhang Shaosheng comparison of the characteristics of banana wilt bacterium No. 4 on various culture media [ J ]. Proc. Fujian university of agriculture and forestry, nature science edition, 2008,37 (4): 344-349.

The content detection reference document of the banana root-knot nematode in the soil comprises the following steps: ruikai, show Tong and Xie Shenghua, etc. 9 nematicides are evaluated for the control effect of banana root knot nematode disease [ J ]. Plant protection, 2011,37 (5): 196-200.

The nutrient content in soil is detected according to the following documents: yao Kai, zhang Bingchen, guo Zihui and the like, the decay characteristic and the soil fertility improvement effect under the condition of covering and returning the banana intercropping faecium beans to the field [ J ]. Southern fruit trees in China, 2021,50 (3): 64-67,75.

Reference documents for banana defensive enzyme activity assay: zhou Dengbo, billow, tan Xin, et al, influence of Trichoderma asperellum strain PZ6 on growth promoting effect of banana and indoor control of wilt disease [ J ] southern agro-paper 2017,48 (2): 277-283.

Banana quality determination reference: kuang Danzi, shao Xuehua, lai Duo, etc. Studies on the effects of banana weight reduction fertilization and amino acid water-soluble fertilizer application [ J ] Chinese soil and fertilizer, 2021 (3): 134-140.

Example 1

Hainan delirium, a ten-year continuous cropping banana field presents serious continuous cropping obstacles, which are manifested by a large area of banana plant wilt, mainly caused by Fusarium oxysporum and Meloidogyne spp. The soil temperature is 20-40 ℃ during planting.

1. Control area: the bananas are directly planted.

2. A processing area: the conventional water and fertilizer management was consistent with the control except treated as follows.

(1) Crushing banana roots and straws on the banana land with continuous cropping obstacles, and then scattering the crushed banana roots and straws on the land surface.

(2) Uniformly spreading the organic fertilizer on the ground according to 1500 kg/mu, and turning and burying the organic fertilizer in a soil plough layer by using a rotary cultivator.

(3) Uniformly dissolving 7kg of microbial agent, 6kg of compound fertilizer and 60 tons of water per mu in an irrigation water tank, and spraying the mixture to the ground surface through a spraying belt.

(4) Controlling the soil humidity at 11% for 7 days.

(5) According to the methods in the steps (3) and (4), 1 time of microbial inoculum (7 kg of microbial inoculum +60 tons of water per mu) is applied every 30 days after the banana is colonized, and 5 times of continuous application is carried out.

(6) After the banana is colonized, the banana stems, the front surfaces and the surfaces of the leaves are sprayed according to the proportion of 5kg of microbial inoculum added with 100kg of water per mu, the application is carried out for 1 time every 15 days, and the continuous application is carried out for 8 times.

(7) And (4) counting disease incidence and yield in the harvest period of the bananas, and detecting the activity of the defensive enzymes in the middle growth period of the bananas.

Three treatments were performed, respectively, to treat the microbial agent used in (1): the paecilomyces lilacinus powder is composed of 5 parts of paecilomyces lilacinus, 10 parts of bacillus subtilis, 5 parts of trichoderma longibrachiatum, 10 parts of bacillus megaterium and 20 parts of bacillus amyloliquefaciens; the microbial agent used in treatment (2): the bacillus subtilis consists of 10 parts of bacillus subtilis, 5 parts of trichoderma longibrachiatum, 10 parts of bacillus megaterium and 20 parts of bacillus amyloliquefaciens; the microbial agent used in treatment (3): consists of 5 parts of paecilomyces lilacinus, 10 parts of bacillus subtilis, 10 parts of bacillus megaterium and 20 parts of bacillus amyloliquefaciens.

TABLE 1 Effect of the invention on Banana soil-borne diseases and leaf disease incidence and yield (330 days)

TABLE 2 Effect of the invention on Induction of increased Banana defensive enzyme Activity (180 days)

Experiments prove that the banana defensive enzyme activity of the treated group is obviously improved, the disease resistance of banana plants is enhanced, the disease and pest incidence is obviously reduced, and the banana continuous cropping obstacle is effectively eliminated.

Example 2

Serious continuous cropping obstacles appear in banana lands planted for 5 years in south-east China sea, and are represented by large-area banana plant withering, which is mainly caused by fusarium oxysporum and root-knot nematodes. The soil temperature is 20-40 ℃ during planting.

The process of treatment is as follows:

1. control area: and (5) directly planting bananas.

(1) Crushing banana roots and straws on the banana land with continuous cropping obstacles, and then spreading the crushed banana roots and straws on the ground surface;

(2) Organic fertilizer is uniformly scattered on the ground according to 3000 kg/mu, and is ploughed and buried in a soil plough layer by a rotary cultivator.

(3) Uniformly dissolving 10kg of microbial agent, 6kg of compound fertilizer and 80 tons of water per mu in an irrigation water tank, and spraying the mixture to the ground surface through a spraying belt. The microbial agent consists of 5 parts of paecilomyces lilacinus, 10 parts of bacillus subtilis, 5 parts of trichoderma longibrachiatum, 10 parts of bacillus megaterium and 20 parts of bacillus amyloliquefaciens.

(4) Controlling the soil humidity at 15% for 7 days.

(5) According to the methods in the steps (3) and (4), 1 time of microbial inoculum (10 kg of microbial inoculum +80 tons of water per mu) is applied every 30 days after the banana is colonized, and 5 times of continuous application is carried out.

(6) After the bananas are colonized, the banana stems, the front surfaces and the surfaces of the leaf parts are sprayed according to 5kg of microbial inoculum per mu and 100kg of water. The administration was performed 1 time every 20 days and 13 times continuously.

(7) And (4) counting the density of root-knot nematodes, disease incidence and banana quality in soil in the banana harvesting period.

TABLE 3 influence of the invention on the incidence and yield of banana soil-borne diseases and leaf diseases (320 days)

TABLE 4 influence of the invention on improving banana quality (320 days)

Experiments prove that the method effectively reduces the disease and insect pest incidence rate and improves the yield and quality of bananas, which shows that the method has remarkable effect on eliminating continuous cropping obstacles of bananas.

Example 3

Serious continuous cropping obstacles appear in banana lands of 6 years of continuous cropping in Changjiang Hainan, which are represented by large-area banana plant withering, mainly caused by fusarium oxysporum. The soil temperature is 20-40 ℃ during planting.

The process of treatment is as follows:

1. control area: and (5) directly planting bananas.

(2) Uniformly spreading the organic fertilizer on the ground according to 1000 kg/mu, and ploughing by using a rotary cultivator to bury the organic fertilizer in a soil plough layer.

(3) Uniformly dissolving 6kg of microbial agent, 8kg of compound fertilizer and 65 tons of water per mu in an irrigation water tank, and spraying the mixture to the ground surface through a spraying belt. The microbial agent consists of 5 parts of paecilomyces lilacinus, 10 parts of bacillus subtilis, 5 parts of trichoderma longibrachiatum, 10 parts of bacillus megaterium and 20 parts of bacillus amyloliquefaciens.

(4) Controlling the soil humidity at 10% for 6 days.

(5) According to the method in the steps (3) and (4), 1 time of microbial agent (6 kg of microbial agent +65 tons of water) is applied every 15 days after banana colonization, and 5 times of continuous application are performed.

(6) After the bananas are colonized, the banana stems, the front surfaces and the surfaces of the leaf parts are sprayed according to 5kg of microbial inoculum per mu and 100kg of water. The administration was performed 1 time every 30 days, and 10 consecutive administrations were performed.

(7) And (4) counting disease incidence, germ content in soil and banana yield in the banana harvesting period.

TABLE 5 influence of the invention on the incidence and yield of banana soil-borne diseases and leaf diseases (300 days)

Example 4

Seawa Baisha, a banana field of 5 years of continuous cropping presents serious continuous cropping obstacles, which are represented by withering of large-area banana plants, mainly caused by fusarium oxysporum. The soil temperature is 20-40 ℃ during planting.

The process of treatment is as follows:

1. control area: the bananas are directly planted.

(2) Uniformly spreading the organic fertilizer on the ground according to 2000 kg/mu, and ploughing by using a rotary cultivator to bury the organic fertilizer in a soil plough layer.

(3) Uniformly dissolving 6kg of microbial agent, 7kg of compound fertilizer and 63 tons of water per mu in an irrigation water tank, and spraying the mixture to the ground surface through a spraying belt. The microbial agent consists of 5 parts of paecilomyces lilacinus, 10 parts of bacillus subtilis, 5 parts of trichoderma longibrachiatum, 10 parts of bacillus megaterium and 20 parts of bacillus amyloliquefaciens.

(4) Controlling the soil humidity at 12% for 7 days.

(5) According to the method of the steps (3) and (4), 1 time of microbial agent is applied every 15 days after the banana is colonized, and 7 times of microbial agent is continuously applied.

(6) After the bananas are colonized, the banana stems, the front surfaces and the surfaces of the leaf parts are sprayed according to 5kg of microbial inoculum per mu and 100kg of water; the administration was performed 1 time every 30 days, and 10 consecutive administrations were performed.

(7) And (5) counting disease incidence, banana yield and soil fertility in the banana harvesting period.

TABLE 6 influence of the invention on the incidence and yield of banana soil-borne diseases and leaf diseases (300 days)

Treatment of	Yield (kg/mu)	Blast disease incidence (%)	Incidence of leaf spot (%)
				Control	1654	65.7	32.4
Treatment of	3827	6.4	2.8

TABLE 7 influence of the invention on the soil fertility index of bananas (300 days)

Treatment of	pH value	Organic matter (%)	Basic hydrolyzed nitrogen (mg/kg)	Quick-acting phosphorus (mg/kg)	Quick-acting potassium (mg/kg)
						Control of	5.08	1.2	52.75	41.18	512.3
Treatment of	5.92	2.4	68.85	47.78	732.2

Experiments prove that the cultivated land treated by the method has obvious effects of relieving soil acidification, improving nutrient indexes and eliminating continuous cropping obstacles of bananas. Can keep continuous cropping for a long time and realize the aim of stable yield and high yield.

The above is only a part of the embodiments of the present invention, and the following is a summary of the overall technical solution. Tests show that the method can achieve good effect within the following technical range.

(1) The banana roots and the straws on the banana land with continuous cropping obstacles are crushed and then spread on the ground surface.

(2) Uniformly spreading the organic fertilizer on the ground according to 1000-3000 kg/mu, and plowing and burying the organic fertilizer into a soil plough layer by using a rotary cultivator.

(3) Uniformly dissolving 5-15kg of microbial agent, 5-10kg of compound fertilizer and 60-80 tons of water per mu in an irrigation water tank, and spraying the mixture to the ground surface through a spraying belt. The microbial agent consists of 1 to 5 portions of paecilomyces lilacinus, 10 portions of bacillus subtilis, 1 to 5 portions of trichoderma longibrachiatum, 10 to 20 portions of bacillus megaterium and 10 to 20 portions of bacillus amyloliquefaciens according to weight ratio.

The microbial agent can be obtained by separating by a conventional method, and a known product can be selected.

(4) The soil humidity is controlled to be 2-20%, and the soil is prepared after 5-10 days.

(5) According to the methods in the steps (3) and (4), 1 time of microbial agent is applied every 15-30 days after the banana is colonized, and 5-10 times of microbial agent is continuously applied.

(6) After the bananas are colonized, 5-15kg of microbial inoculum is mixed with 100-200kg of water to be sprayed with the banana stems and the front surfaces and the surfaces of the leaves per mu, or the mixture is mixed with conventional leaf fertilizers and insecticides and then mixed with 100-200kg of water to be sprayed with the banana stems and the front surfaces and the surfaces of the leaves; applied for 1 time every 15-30 days and continuously applied for 8-20 times.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A fertilizing method for conditioning banana continuous cropping obstacle soil is characterized by comprising the following steps:

(2) Ploughing the organic fertilizer to a soil plough layer;

(4) Controlling the soil humidity at 8-20% for 5-10 days;

(6) After the bananas are colonized, the microbial agent is sprayed for 1 time every 15-30 days.

2. The fertilizing method for conditioning the continuous cropping obstacle soil of bananas as claimed in claim 1, wherein in step (3), the amount of the microbial agent is 5-15kg per mu, and the amount of the compound fertilizer is 5-10kg per mu.

3. The fertilizing method for conditioning the soil with banana continuous cropping obstacles according to claim 1, characterized in that in step (5), the amount of the microbial inoculum is 5-15kg per acre.

4. The fertilizing method for conditioning the soil with banana continuous cropping obstacles as claimed in claim 1, wherein the microbial inoculum: the bacillus amyloliquefaciens comprises, by weight, 1-5 parts of paecilomyces lilacinus, 5-10 parts of bacillus subtilis, 1-5 parts of trichoderma longibrachiatum, 10-20 parts of bacillus megaterium and 10-20 parts of bacillus amyloliquefaciens.

5. The fertilizing method for conditioning banana continuous cropping obstacle soil according to claim 1, characterized in that the organic fertilizer is prepared by composting excrement and fiber material with a mass ratio of 1:2 and is fermented, and the organic matter content is more than or equal to 50%;

the manure comprises 1-10 parts by weight of pig manure, 1-10 parts by weight of chicken manure and 10-30 parts by weight of sheep manure;

the fiber material comprises cassava residue and/or coconut coir.

6. The fertilizing method for conditioning the soil with banana continuous cropping obstacles as claimed in claim 1, wherein in step (2), the amount of organic fertilizer is 1000-3000 kg/mu.

7. The fertilizing method for conditioning soil with continuous cropping obstacles of bananas as claimed in claim 1, characterized in that the compound fertilizer is a nitrogen-phosphorus-potassium compound fertilizer.

8. The fertilizing method for conditioning soil with continuous cropping obstacles of bananas according to claim 1, characterized in that in step (5), the microbial agent is continuously applied for 5-10 times.

9. The fertilizing method for conditioning the soil with continuous cropping obstacles of bananas as claimed in claim 1, wherein in step (6), the microbial inoculum is applied for 8-20 times continuously.