A soil conditioner for soil with obstacles to continuous banana cropping

Abstract

The present invention relates to the technical field of soil improvement, and discloses a soil conditioner for banana continuous cropping obstacle soil. The present invention discloses a soil conditioner for banana continuous cropping obstacle soil, comprising the following raw materials by weight: 30 to 50 parts of montmorillonite, 40 to 60 parts of straw water extract, 15 to 25 parts of quicklime, 5 to 15 parts of humic acid, and 5 to 15 parts of microbial agent. The soil conditioner for banana continuous cropping obstacle soil provided by the present invention can effectively reduce the content of self-toxic substances and fungi in the soil, and effectively improve the pH of the soil, and can fundamentally regulate the banana continuous cropping obstacle soil; the soil conditioner for banana continuous cropping obstacle soil provided by the present invention can effectively reduce the incidence of banana wilt and leaf spot, and increase the yield, and effectively improve the economic benefits.

Description

Technical Field

[0001] The invention relates to the technical field of soil improvement, in particular to a soil conditioner for soil with obstacles caused by continuous banana cropping. Background Art

[0002] Continuous cropping disorder, also known as replanting disorder, refers to the phenomenon that crop growth is hindered, yield is reduced, or even plant death occurs when the same crop or closely related crops are planted continuously on the same soil; continuous cropping disorder is particularly common in fruit trees such as bananas, apples, and dates. The main causes of continuous cropping disorder include crop self-toxicity, damage to the soil microecological environment, and deterioration of soil physical and chemical properties.

[0003] Taking bananas as an example, according to statistical data, bananas planted on soil with continuous cropping problems suffer from serious diseases and insect pests, with a yield reduction rate of up to 70%, which seriously affects the economic benefits of the banana industry. Therefore, how to effectively regulate the soil with continuous cropping problems has become the focus of attention of banana industry technicians. Summary of the invention

[0004] The purpose of the present invention is to provide a soil conditioner for banana continuous cropping obstacle soil, which can fundamentally condition the banana continuous cropping obstacle soil and improve economic benefits.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] One of the technical solutions of the present invention:

[0007] A soil conditioner for banana continuous cropping soil, comprising the following raw materials by weight: 30-50 parts of montmorillonite, 40-60 parts of straw water extract, 15-25 parts of quicklime, 5-15 parts of humic acid and 5-15 parts of microbial agent;

[0008] Preferably, the soil conditioner for banana continuous cropping obstacle soil comprises the following raw materials in parts by mass: 40 parts of montmorillonite, 50 parts of straw water extract, 20 parts of quicklime, 10 parts of humic acid and 10 parts of microbial agent.

[0009] Furthermore, the method for preparing the straw water extract comprises the following steps:

[0010] 1) placing pepper straw in water and boiling it to obtain a pepper straw water extract;

[0011] 2) placing peanut straw in water and boiling it to obtain a peanut straw water extract;

[0012] 3) mixing the pepper straw aqueous extract obtained in step 1) and the peanut straw aqueous extract obtained in step 2) to obtain the straw aqueous extract;

[0013] Furthermore, in step 1), the mass volume ratio of the pepper straw to water is 1 g: 20 mL;

[0014] Furthermore, in step 1), the decoction is performed at 80-100° C. for 20-40 min;

[0015] Preferably, in step 1), the decocting is performed at 90° C. for 30 min;

[0016] Furthermore, in step 2), the mass volume ratio of the peanut straw to water is 1 g: 20 mL;

[0017] Furthermore, in step 2), the decoction is performed at 70 to 80° C. for 50 to 70 minutes;

[0018] Preferably, in step 2), the decocting is performed at 75° C. for 60 min;

[0019] Furthermore, in step 3), the volume ratio of the chili straw water extract to the peanut straw water extract is 2:1.

[0020] Furthermore, the microbial agent contains 5×10 7 CFU / g, Burkholderia cepacia 3.0×10 6 CFU / g, Pseudomonas fluorescens 3.0×10 6 CFU / g and Pseudomonas aeruginosa 2.0×10 6 CFU / g.

[0021] The second technical solution of the present invention:

[0022] The preparation method of the soil conditioner for banana continuous cropping obstacle soil comprises the following steps:

[0023] 1) adding the microbial agent to the straw water extract, mixing evenly, adding montmorillonite, mixing, and drying to obtain a soil conditioner premix;

[0024] 2) The soil conditioner premix obtained in step 1) is mixed with quicklime and humic acid, and ground to obtain the soil conditioner for banana continuous cropping obstacle soil.

[0025] Furthermore, in step 1), the mixing is as follows: controlling the stirring speed to 50 r / min and stirring for 10 min;

[0026] Furthermore, in step 1), the drying is: drying at room temperature until the water content is less than 10%;

[0027] Furthermore, in step 2), the grinding is: grinding to an average particle size of 0.1 to 1 mm.

[0028] The third technical solution of the present invention:

[0029] The application of the soil conditioner for banana continuous cropping obstacle soil in banana continuous cropping obstacle soil conditioning.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The soil conditioner for banana continuous cropping obstacle soil provided by the present invention can effectively reduce the content of self-toxic substances and fungi in the soil, and effectively improve the pH value of the soil, and can fundamentally regulate the banana continuous cropping obstacle soil;

[0032] The soil conditioner for banana continuous cropping obstacle soil provided by the present invention can effectively reduce the incidence of banana wilt and leaf spot, increase the yield, and effectively improve the economic benefit. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the following examples and comparative examples, the room temperature is 25±2°C.

[0035] In the following examples and comparative examples, the raw materials are all commercially available, wherein the montmorillonite is 300 mesh montmorillonite, the pepper straw is Qiongnongke chili straw, the peanut straw is Zhongkaihua No. 1 peanut straw, and the calcium oxide content in the quicklime is 95% to 98%.

[0036] In the following examples and comparative examples, unless otherwise specified, the microbial agent contains 5×10 7 CFU / g, Burkholderia cepacia 3.0×10 6 CFU / g, Pseudomonas fluorescens 3.0×10 6 CFU / g and Pseudomonas aeruginosa 2.0×10 6 CFU / g.

[0037] In the following examples, a method for preparing a soil conditioner for banana continuous cropping obstacle soil comprises the following steps:

[0038] 1) placing the pepper straw in water at a mass volume ratio of the pepper straw to water of 1 g:20 mL, and boiling at 80-100° C. for 20-40 min to obtain a pepper straw water extract;

[0039] 2) placing peanut straw in water at a mass volume ratio of peanut straw to water of 1 g:20 mL, and boiling at 70-80° C. for 50-70 min to obtain a peanut straw water extract;

[0040] 3) mixing the pepper straw water extract obtained in step 1) and the peanut straw water extract obtained in step 2) at a volume ratio of 2:1 to obtain a straw water extract;

[0041] 4) Weigh the raw materials according to the following weight proportions: 30-50 parts of montmorillonite, 40-60 parts of straw water extract, 15-25 parts of quicklime, 5-15 parts of humic acid and 5-15 parts of microbial agent;

[0042] 5) adding the microbial agent weighed in step 4) to the straw water extract, mixing evenly, adding montmorillonite, controlling the stirring speed to 50 r / min, stirring for 10 min, and then drying at room temperature until the water content is less than 10%, to obtain a soil conditioner premix;

[0043] 6) The soil conditioner premix obtained in step 5) and the quicklime and humic acid weighed in step 4) are mixed and ground to an average particle size of 0.1 to 1 mm to obtain the soil conditioner for banana continuous cropping obstacle soil.

[0044] Example 1

[0045] A soil conditioner for soil with obstacles to continuous banana cropping

[0046] 1) placing the pepper straw in water at a mass volume ratio of 1 g to water: 20 mL, and boiling at 90° C. for 30 min to obtain a pepper straw water extract;

[0047] 2) placing peanut straw in water at a mass volume ratio of 1 g to 20 mL, boiling at 75° C. for 60 min, and obtaining a peanut straw water extract;

[0048] 3) mixing the pepper straw water extract obtained in step 1) and the peanut straw water extract obtained in step 2) at a volume ratio of 2:1 to obtain a straw water extract;

[0049] 4) Weigh the raw materials according to the following weight ratios: 40 parts of montmorillonite, 50 parts of straw water extract, 20 parts of quicklime, 10 parts of humic acid and 10 parts of microbial agent;

[0050] 5) adding the microbial agent weighed in step 4) to the straw water extract, mixing evenly, adding montmorillonite, controlling the stirring speed to 50 r / min, stirring for 10 min, and then drying at room temperature to a water content of 10% to obtain a soil conditioner premix;

[0051] 6) The soil conditioner premix obtained in step 5) and the quicklime and humic acid weighed in step 4) are mixed and ground to an average particle size of 0.5 mm to obtain the soil conditioner for soil with banana continuous cropping obstacles.

[0052] Example 2

[0053] A soil conditioner for soil with obstacles to continuous banana cropping

[0054] 1) placing the pepper straw in water at a mass volume ratio of 1 g to 20 mL, and boiling at 80° C. for 20 min to obtain a pepper straw water extract;

[0055] 2) placing peanut straw in water at a mass volume ratio of 1 g to 20 mL, and boiling at 70° C. for 50 min to obtain a peanut straw water extract;

[0056] 3) mixing the pepper straw water extract obtained in step 1) and the peanut straw water extract obtained in step 2) at a volume ratio of 2:1 to obtain a straw water extract;

[0057] 4) Weigh the raw materials according to the following weight ratios: 30 parts of montmorillonite, 40 parts of straw water extract, 15 parts of quicklime, 5 parts of humic acid and 5 parts of microbial agent;

[0058] 5) adding the microbial agent weighed in step 4) to the straw water extract, mixing evenly, adding montmorillonite, controlling the stirring speed to 50 r / min, stirring for 10 min, and then drying at room temperature to a water content of 10% to obtain a soil conditioner premix;

[0059] 6) The soil conditioner premix obtained in step 5) and the quicklime and humic acid weighed in step 4) are mixed and ground to an average particle size of 0.5 mm to obtain the soil conditioner for soil with banana continuous cropping obstacles.

[0060] Example 3

[0061] A soil conditioner for soil with obstacles to continuous banana cropping

[0062] 1) placing the pepper straw in water according to a mass volume ratio of the pepper straw to water of 1 g: 20 mL, and boiling at 100° C. for 40 min to obtain a pepper straw water extract;

[0063] 2) placing peanut straw in water at a mass volume ratio of 1 g to 20 mL, boiling at 80° C. for 70 min, and obtaining a peanut straw water extract;

[0064] 3) mixing the pepper straw water extract obtained in step 1) and the peanut straw water extract obtained in step 2) at a volume ratio of 2:1 to obtain a straw water extract;

[0065] 4) Weigh the raw materials according to the following weight parts: 50 parts of montmorillonite, 60 parts of straw water extract, 25 parts of quicklime, 15 parts of humic acid and 15 parts of microbial agent;

[0066] 5) adding the microbial agent weighed in step 4) to the straw water extract, mixing evenly, adding montmorillonite, controlling the stirring speed to 50 r / min, stirring for 10 min, and then drying at room temperature to a water content of 10% to obtain a soil conditioner premix;

[0067] 6) The soil conditioner premix obtained in step 5) and the quicklime and humic acid weighed in step 4) are mixed and ground to an average particle size of 0.5 mm to obtain the soil conditioner for soil with banana continuous cropping obstacles.

[0068] Comparative Example 1

[0069] A soil conditioner for soil with obstacles to continuous banana cropping

[0070] 1) placing the pepper straw in water at a mass volume ratio of 1 g to water: 20 mL, and boiling at 120° C. for 30 min to obtain a pepper straw water extract;

[0071] 2) placing peanut straw in water at a mass volume ratio of 1 g to 20 mL, boiling at 90° C. for 60 min, and obtaining a peanut straw water extract;

[0072] 3) mixing the pepper straw water extract obtained in step 1) and the peanut straw water extract obtained in step 2) at a volume ratio of 2:1 to obtain a straw water extract;

[0073] 4) Weigh the raw materials according to the following weight ratios: 40 parts of montmorillonite, 50 parts of straw water extract, 20 parts of quicklime, 10 parts of humic acid and 10 parts of microbial agent;

[0074] 5) adding the microbial agent weighed in step 4) to the straw water extract, mixing evenly, adding montmorillonite, controlling the stirring speed to 50 r / min, stirring for 10 min, and then drying at room temperature to a water content of 10% to obtain a soil conditioner premix;

[0075] 6) The soil conditioner premix obtained in step 5) and the quicklime and humic acid weighed in step 4) are mixed and ground to an average particle size of 0.5 mm to obtain the soil conditioner for soil with banana continuous cropping obstacles.

[0076] Comparative Example 2

[0077] A soil conditioner for soil with obstacles to continuous banana cropping

[0078] 1) placing the pepper straw in water at a mass volume ratio of 1 g to water: 20 mL, and boiling at 60° C. for 30 min to obtain a pepper straw water extract;

[0079] 2) placing peanut straw in water at a mass volume ratio of 1 g to 20 mL, boiling at 60° C. for 60 min, and obtaining a peanut straw water extract;

[0080] 3) mixing the pepper straw water extract obtained in step 1) and the peanut straw water extract obtained in step 2) at a volume ratio of 2:1 to obtain a straw water extract;

[0081] 4) Weigh the raw materials according to the following weight parts: 40 parts of montmorillonite, 50 parts of straw water extract, 20 parts of quicklime, 10 parts of humic acid and 10 parts of microbial agent;

[0082] 5) adding the microbial agent weighed in step 4) to the straw water extract, mixing evenly, adding montmorillonite, controlling the stirring speed to 50 r / min, stirring for 10 min, and then drying at room temperature to a water content of 10% to obtain a soil conditioner premix;

[0083] 6) The soil conditioner premix obtained in step 5) and the quicklime and humic acid weighed in step 4) are mixed and ground to an average particle size of 0.5 mm to obtain the soil conditioner for soil with banana continuous cropping obstacles.

[0084] Comparative Example 3

[0085] A soil conditioner for soil with obstacles to continuous banana cropping

[0086] 1) placing the pepper straw in water at a mass volume ratio of 1 g to 20 mL, and boiling at 90° C. for 10 min to obtain a pepper straw water extract;

[0087] 2) placing peanut straw in water at a mass volume ratio of 1 g to 20 mL, boiling at 75° C. for 40 min, and obtaining a peanut straw water extract;

[0088] 3) mixing the pepper straw water extract obtained in step 1) and the peanut straw water extract obtained in step 2) at a volume ratio of 2:1 to obtain a straw water extract;

[0089] 4) Weigh the raw materials according to the following weight parts: 40 parts of montmorillonite, 50 parts of straw water extract, 20 parts of quicklime, 10 parts of humic acid and 10 parts of microbial agent;

[0090] 5) adding the microbial agent weighed in step 4) to the straw water extract, mixing evenly, adding montmorillonite, controlling the stirring speed to 50 r / min, stirring for 10 min, and then drying at room temperature to a water content of 10% to obtain a soil conditioner premix;

[0091] 6) The soil conditioner premix obtained in step 5) and the quicklime and humic acid weighed in step 4) are mixed and ground to an average particle size of 0.5 mm to obtain the soil conditioner for soil with banana continuous cropping obstacles.

[0092] Comparative Example 4

[0093] A soil conditioner for soil with obstacles to continuous banana cropping

[0094] 1) placing the pepper straw in water at a mass volume ratio of 1 g to 20 mL, and boiling at 90° C. for 50 min to obtain a pepper straw water extract;

[0095] 2) placing peanut straw in water at a mass volume ratio of 1 g to 20 mL, and boiling at 75° C. for 80 min to obtain a peanut straw water extract;

[0096] 3) mixing the pepper straw water extract obtained in step 1) and the peanut straw water extract obtained in step 2) at a volume ratio of 2:1 to obtain a straw water extract;

[0097] 4) Weigh the raw materials according to the following weight parts: 40 parts of montmorillonite, 50 parts of straw water extract, 20 parts of quicklime, 10 parts of humic acid and 10 parts of microbial agent;

[0098] 5) adding the microbial agent weighed in step 4) to the straw water extract, mixing evenly, adding montmorillonite, controlling the stirring speed to 50 r / min, stirring for 10 min, and then drying at room temperature to a water content of 10% to obtain a soil conditioner premix;

[0099] 6) The soil conditioner premix obtained in step 5) and the quicklime and humic acid weighed in step 4) are mixed and ground to an average particle size of 0.5 mm to obtain the soil conditioner for soil with banana continuous cropping obstacles.

[0100] Comparative Example 5

[0101] A soil conditioner for soil with obstacles to continuous banana cropping

[0102] 1) placing the pepper straw in water at a mass volume ratio of 1 g to water: 20 mL, and boiling at 90° C. for 30 min to obtain a pepper straw water extract;

[0103] 2) placing peanut straw in water at a mass volume ratio of 1 g to 20 mL, boiling at 75° C. for 60 min, and obtaining a peanut straw water extract;

[0104] 3) mixing the pepper straw water extract obtained in step 1) and the peanut straw water extract obtained in step 2) at a volume ratio of 2:1 to obtain a straw water extract;

[0105] 4) Weigh the raw materials according to the following weight proportions: 40 parts of brown soil (300 mesh), 50 parts of straw water extract, 20 parts of quicklime, 10 parts of humic acid and 10 parts of microbial agent;

[0106] 5) adding the microbial agent weighed in step 4) to the straw water extract, mixing evenly, adding brown soil, controlling the stirring speed to 50 r / min, stirring for 10 min, and then drying at room temperature to a moisture content of 10%, to obtain a soil conditioner premix;

[0107] 6) The soil conditioner premix obtained in step 5) and the quicklime and humic acid weighed in step 4) are mixed and ground to an average particle size of 0.5 mm to obtain the soil conditioner for soil with banana continuous cropping obstacles.

[0108] Comparative Example 6

[0109] A soil conditioner for soil with obstacles to continuous banana cropping

[0110] 1) placing pepper straw in water at a mass volume ratio of pepper straw to water of 1 g:20 mL, and boiling at 90° C. for 30 min to obtain a pepper straw water extract, i.e., a straw water extract;

[0111] 2) Weigh the raw materials according to the following weight ratios: 40 parts of montmorillonite, 50 parts of straw water extract, 20 parts of quicklime, 10 parts of humic acid and 10 parts of microbial agent;

[0112] 3) adding the microbial agent weighed in step 2) to the straw water extract, adding montmorillonite after mixing evenly, controlling the stirring speed to 50 r / min, stirring for 10 min, and then drying at room temperature to a water content of 10%, to obtain a soil conditioner premix;

[0113] 4) The soil conditioner premix obtained in step 3) and the quicklime and humic acid weighed in step 2) are mixed and ground to an average particle size of 0.5 mm to obtain the soil conditioner for banana continuous cropping obstacle soil.

[0114] Comparative Example 7

[0115] A soil conditioner for soil with obstacles to continuous banana cropping

[0116] 1) placing peanut straw in water at a mass volume ratio of peanut straw to water of 1 g:20 mL, and boiling at 75° C. for 60 min to obtain a peanut straw water extract, i.e., a straw water extract;

[0117] 2) Weigh the raw materials according to the following weight ratios: 40 parts of montmorillonite, 50 parts of straw water extract, 20 parts of quicklime, 10 parts of humic acid and 10 parts of microbial agent;

[0118] 3) adding the microbial agent weighed in step 2) to the straw water extract, mixing evenly, adding montmorillonite, controlling the stirring speed to 50 r / min, stirring for 10 min, and then drying at room temperature to a water content of 10% to obtain a soil conditioner premix;

[0119] 4) The soil conditioner premix obtained in step 3) and the quicklime and humic acid weighed in step 2) are mixed and ground to an average particle size of 0.5 mm to obtain the soil conditioner for banana continuous cropping obstacle soil.

[0120] Comparative Example 8

[0121] A soil conditioner for soil with obstacles to continuous banana cropping

[0122] 1) placing the pepper straw in water at a mass volume ratio of 1 g to water: 20 mL, and boiling at 90° C. for 30 min to obtain a pepper straw water extract;

[0123] 2) placing peanut straw in water at a mass volume ratio of 1 g to 20 mL, boiling at 75° C. for 60 min, and obtaining a peanut straw water extract;

[0124] 3) mixing the pepper straw water extract obtained in step 1) and the peanut straw water extract obtained in step 2) at a volume ratio of 1:1 to obtain a straw water extract;

[0125] 4) Weigh the raw materials according to the following weight parts: 40 parts of montmorillonite, 50 parts of straw water extract, 20 parts of quicklime, 10 parts of humic acid and 10 parts of microbial agent;

[0126] 5) adding the microbial agent weighed in step 4) to the straw water extract, mixing evenly, adding montmorillonite, controlling the stirring speed to 50 r / min, stirring for 10 min, and then drying at room temperature to a water content of 10% to obtain a soil conditioner premix;

[0127] 6) The soil conditioner premix obtained in step 5) and the quicklime and humic acid weighed in step 4) are mixed and ground to an average particle size of 0.5 mm to obtain the soil conditioner for soil with banana continuous cropping obstacles.

[0128] Comparative Example 9

[0129] A soil conditioner for soil with obstacles to continuous banana cropping

[0130] Same as Example 1, except that the microbial agent used contained 3.0×10 6 CFU / g, Pseudomonas fluorescens 3.0×10 6 CFU / g and Pseudomonas aeruginosa 2.0×10 6 CFU / g.

[0131] Comparative Example 10

[0132] A soil conditioner for soil with obstacles to continuous banana cropping

[0133] Same as Example 1, except that the microbial agent used contained 5×10 Bacillus subtilis 7 CFU / g, Pseudomonas fluorescens 3.0×10 6 CFU / g and Pseudomonas aeruginosa 2.0×10 6 CFU / g.

[0134] Comparative Example 11

[0135] A soil conditioner for soil with obstacles to continuous banana cropping

[0136] Same as Example 1, except that the microbial agent used contained 5×10 Bacillus subtilis 7 CFU / g, Burkholderia cepacia 3.0×10 6 CFU / g and Pseudomonas aeruginosa 2.0×10 6 CFU / g.

[0137] Comparative Example 12

[0138] A soil conditioner for soil with obstacles to continuous banana cropping

[0139] Same as Example 1, except that the microbial agent used contained 5×10 Bacillus subtilis 7 CFU / g, Burkholderia cepacia 3.0×10 6 CFU / g and Pseudomonas fluorescens 3.0×10 6 CFU / g.

[0140] Effect verification

[0141] 1. Laboratory Testing

[0142] 1) According to the content of benzoic acid in the soil of 0.5 mg / g, the content of vanillin of 0.5 mg / g, and the content of Fusarium oxysporum of 10 4 / g, benzoic acid, vanillin and Fusarium oxysporum were added to healthy soil to construct a soil model of banana continuous cropping obstacle;

[0143] 2) The dosage of soil conditioner is 250g / m 2 , applying the soil conditioner to the surface of the banana continuous cropping obstacle soil model constructed in step 1), applying it once every 5 days, for a total of 3 times, and 5 days after the third application, the benzoic acid content, vanillin content, Fusarium oxysporum content and pH of the banana continuous cropping obstacle soil model were detected, and the test results are shown in Table 1;

[0144] Table 1 Laboratory tests

[0145]

[0146]

[0147] It can be seen from the data in Table 1 that the soil conditioner for banana continuous cropping obstacle soil provided by the present invention can effectively reduce the content of autotoxic substances (benzoic acid, vanillin) and fungi (Fusarium oxysporum) in the soil, and effectively improve the pH of the soil, and can fundamentally regulate the banana continuous cropping obstacle soil;

[0148] In addition, it can be seen from the comparative examples that changing the boiling temperature and boiling time of the straw water extract, omitting the pepper straw water extract or the peanut straw water extract, changing the ratio of the straw water extract, replacing montmorillonite, and omitting any one of the microorganisms in the microbial agent will have an adverse effect on the content of self-toxic substances, fungi and the pH of the soil.

[0149] II. Regional Pilot Program

[0150] According to the application amount of 200kg / mu, the soil conditioner for banana continuous cropping obstacle soil prepared in Examples 1 to 3 and Comparative Examples 1 to 12 was applied to the banana continuous cropping obstacle soil, once every 5 days, for a total of 3 times, and bananas were planted 5 days after the third application. Thereafter, bananas were planted according to the conventional banana planting method (including application of basic fertilizer, irrigation, etc.), and the disease incidence and banana yield were statistically analyzed during the banana maturity period. The results are shown in Table 2;

[0151] Table 2 Regional pilot

[0152]

[0153]

[0154] It can be seen from the data in Table 2 that the soil conditioner for banana continuous cropping obstacle soil provided by the present invention can effectively reduce the incidence of banana wilt and leaf spot, increase the yield, and effectively improve the economic benefits;

[0155] In addition, it can be seen from the comparative examples that changing the boiling temperature and boiling time of the straw water extract, omitting the pepper straw water extract or the peanut straw water extract, changing the ratio of the straw water extract, replacing montmorillonite, and omitting any one of the microorganisms in the microbial agent will have an adverse effect on the incidence and yield of banana wilt and leaf spot.

[0156] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A soil conditioner for banana continuous cropping soil, characterized in that: The soil conditioner for banana continuous cropping obstacle soil comprises the following raw materials by weight: 30-50 parts of montmorillonite, 40-60 parts of straw water extract, 15-25 parts of quicklime, 5-15 parts of humic acid and 5-15 parts of microbial agent; The method for preparing the straw water extract comprises the following steps: 1) placing the pepper straw in water at a mass volume ratio of 1 g to 20 mL, and boiling the pepper straw at 80 to 100° C. for 20 to 40 min to obtain a pepper straw water extract; 2) placing the peanut straw in water at a mass volume ratio of 1 g to 20 mL, and boiling the peanut straw at 70 to 80° C. for 50 to 70 min to obtain a peanut straw water extract; 3) mixing the chili straw water extract obtained in step 1) and the peanut straw water extract obtained in step 2) at a volume ratio of 2:1 to obtain the straw water extract; Wherein, the microbial agent contains 5×10 7 CFU / g, Burkholderia cepacia 3.0×10 6 CFU / g, Pseudomonas fluorescens 3.0×10 6 CFU / g and Pseudomonas aeruginosa 2.0×10 6 CFU / g.

2. A method for preparing a soil conditioner for banana continuous cropping soil as claimed in claim 1, characterized in that: The following steps are involved: 1) adding the microbial agent to the straw water extract, mixing evenly, adding montmorillonite, mixing, and drying to obtain a soil conditioner premix; 2) The soil conditioner premix obtained in step 1) is mixed with quicklime and humic acid, and ground to obtain the soil conditioner for banana continuous cropping obstacle soil.

3. The preparation method according to claim 2, characterized in that: In step 1), the drying is: drying at room temperature until the water content is less than 10%.

4. The preparation method according to claim 2, characterized in that: In step 2), the grinding is: grinding to an average particle size of 0.1 to 1 mm.

5. Use of the soil conditioner for banana continuous cropping soil as claimed in claim 1 in soil conditioning for banana continuous cropping soil.

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