Method for removing bamboo culm stump of moso bamboo

Abstract

The application provides a method for removing bamboo culm stump of moso bamboo, and specifically comprises the following steps: step one, drilling a plurality of holes in the vertical direction on the surface of the bamboo wall, and then spraying a pretreatment liquid on the surface of the bamboo culm stump; step two, filling a composite bacterial solution in the holes, and then spraying a nutrient solution; after 20-25 days, filling a rotting catalyst in the holes until the bamboo culm stump is rotten; and step three, after the bamboo culm stump is rotten, returning the bamboo culm stump to the field in situ, and applying a modifier to the soil around the bamboo culm stump. Compared with the prior art, the application can significantly reduce the rotting period of the bamboo culm stump, significantly improve the degradation rate of bamboo fiber and the content of soil organic matter, and balance ecological safety and economic benefits.

Description

A method for removing bamboo stumps from moso bamboo Technical Field

[0001] This invention relates to the field of moso bamboo cultivation technology, specifically to a method for removing moso bamboo stumps. Background Technology

[0002] Moso bamboo grows from underground rhizomes that sprout new shoots. After the bamboo is cut down, the remaining stumps are conical in shape, wider at the top and narrower at the bottom, tapering sharply to a conical shape at the base. At the conical base, the stumps are connected to the rhizomes, which extend horizontally and vertically in the soil, producing numerous rhizome roots. Many roots (stubble roots) are also attached to the outer round body of the stump. New bamboo shoots naturally sprout from these rhizomes. After moso bamboo is cut down, the remaining stumps must be removed; otherwise, their scattered distribution will occupy underground space, reducing the underground growth space for the rhizomes and the growth space for new bamboo shoots, thus decreasing the quantity and quality of new bamboo shoots. The tailbone of the bamboo stump, which is connected to the rhizome, absorbs water and oxygen from the rhizome and soil, supplying it to the stump. The bamboo roots attached to the stump also absorb water and oxygen. Under these conditions, the stump takes 10 years or more to decompose. Furthermore, the stump contains a high amount of bamboo fiber, making it difficult to decompose. It occupies a large amount of soil space in the bamboo forest, reducing the effective utilization space of the bamboo forest and severely affecting the underground extension of the rhizome, significantly reducing the regeneration efficiency and economic value of the bamboo forest. Existing methods for removing bamboo stumps generally involve physical excavation or chemical treatment, but these still have the following drawbacks: 1. Low efficiency: The natural decomposition cycle is too long; manual excavation is costly, damages soil structure, and is labor-intensive. Single chemical decomposing agents (such as strong acids and alkalis) have limited effects, easily pollute the soil, and are difficult to completely decompose bamboo fiber. 2. Ecological damage risk: Physical excavation easily damages the rhizome network, affecting bamboo forest regeneration and growth; chemical treatment may lead to soil acidification and microbial imbalance. 3. Lack of systematic approach: Existing methods mostly focus on the removal of bamboo stumps themselves, neglecting subsequent soil remediation and nutrient replenishment, resulting in a long land rejuvenation cycle.

[0003] Therefore, providing a simple, efficient, and environmentally friendly method for removing bamboo stumps has become an urgent problem to be solved. Summary of the Invention

[0004] To address the above problems, this invention provides a method for removing bamboo stumps from moso bamboo, specifically including the following steps:

[0005] A method for removing bamboo stumps from moso bamboo, characterized by comprising the following steps:

[0006] Step 1: Drill several holes vertically on the surface of the bamboo wall, and then spray a pretreatment solution onto the surface of the bamboo stump.

[0007] Step 2: Fill the borehole with compound bacterial solution and spray nutrient solution every 5-7 days; after 20-25 days, fill the borehole with a decay accelerator every 8-12 days until the bamboo stump rots.

[0008] Step 3: After the bamboo stumps have decomposed, return them to the field in their original location and apply soil conditioner to the soil around them.

[0009] Preferably, the diameter of the drill hole in step one is 5-8 mm and the depth is 10-15 cm.

[0010] Preferably, the amount of pretreatment solution used in step one is 200-300 mL / mu.

[0011] Preferably, the pretreatment solution in step one comprises urea, sucrose, and water in a mass ratio of 1:2:200.

[0012] Preferably, in step two, the amount of the compound bacterial solution is 5-10 g / well, the amount of the nutrient solution is 50-100 mL / plant, and the amount of the composting agent is 10-20 g / well.

[0013] Preferably, the compound bacterial solution in step two includes compound bacterial powder and culture medium in a mass ratio of 1:100, the nutrient solution is a glucose solution with a mass fraction of 0.1-0.2%, and the preservative includes urea peroxide, ferric ammonium citrate, sodium dodecylbenzenesulfonate, nano titanium dioxide and water in a mass ratio of 15:8:2:1:75.

[0014] Preferably, the compound bacterial powder comprises freeze-dried white rot fungus powder and Bacillus subtilis powder in a mass ratio of 4:1, and the culture medium comprises bamboo powder, wheat bran, ammonium sulfate, potassium dihydrogen phosphate, magnesium sulfate heptahydrate, glucose and water in a mass ratio of 15:10:0.2:0.1:0.05:0.3:100.

[0015] Preferably, the dosage of the modifier in step three is 2-3 kg / m³. 2 Application range: 1-2m 2 ~~.

[0016] Preferably, the modifier in step three is activated carbon, humic acid, vermiculite and bentonite in a mass ratio of 10:1:3:5.

[0017] Preferably, in step three, 0.2% EM bacterial agent is applied as a supplementary treatment when applying the conditioner, at a dosage of 20-30 g / m³. 2 .

[0018] The present invention has the following advantages:

[0019] (1) High nitrogen source (urea) and carbon source (sucrose) activate microbial activity and accelerate the degradation of bamboo fiber; white rot fungi can secrete cellulase to decompose bamboo fiber, Bacillus subtilis inhibits miscellaneous bacteria and promotes humification; urea peroxide releases active oxygen to destroy lignin structure, and nano titanium dioxide photocatalyzes and assists in degradation; this invention significantly shortens the decay cycle through multi-stage biochemical synergy.

[0020] (2) After the bamboo stumps decompose, they are returned to the field in situ and directly converted into organic matter. The soil conditioner (activated carbon + humic acid) adsorbs harmful substances and enhances the soil's water and fertilizer retention capacity. The application of EM bacteria further balances the soil microbial community, avoids the ecological risks caused by the dominance of a single species, reduces chemical pollution, and enhances the sustainable productivity of the soil.

[0021] (3) The honeycomb-shaped drilling increases the penetration area of ​​bacterial liquid and decomposing agent, ensuring uniform degradation inside the bamboo stump. Regularly spraying low-concentration glucose maintains microbial activity and avoids nutrient overload leading to microbial imbalance. Quantitative filling reduces resource waste and lowers costs. The process parameters are scientifically optimized and the operation is standardized, making it suitable for large-scale bamboo forest management.

[0022] (4) Bamboo stumps are returned to the field in situ to be converted into organic fertilizer, replenishing the soil carbon pool. Bamboo processing waste (bamboo powder) is used as a culture medium for bacterial liquid, realizing the resource utilization of waste, reducing the input of external resources, and conforming to the concept of circular agriculture. Detailed Implementation

[0023] The technical solutions in the embodiments of the invention are described clearly and completely below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Example 1

[0025] Step 1: Drill several holes vertically on the surface of the bamboo wall. The holes are 8mm in diameter and 12cm deep. Then, spray a pretreatment solution onto the surface of the bamboo stump at a rate of 250mL per stump. The pretreatment solution consists of urea, sucrose, and water in a mass ratio of 1:2:200.

[0026] Step 2: Fill the drilled holes with 10g of compound bacterial solution per hole, and spray 80mL of nutrient solution per clump every 5 days. After 20 days, fill the drilled holes with a decay accelerator, 15g per hole, every 10 days until the bamboo clump rots. The compound bacterial solution consists of compound bacterial powder and culture medium in a mass ratio of 1:100. The nutrient solution is a 0.1% glucose solution. The decay accelerator consists of urea peroxide, ferric ammonium citrate, sodium dodecylbenzenesulfonate, nano titanium dioxide, and water in a mass ratio of 15:8:2:1:75. The compound bacterial powder consists of freeze-dried white rot fungus powder and Bacillus subtilis powder in a mass ratio of 4:1. The culture medium consists of bamboo powder, wheat bran, ammonium sulfate, potassium dihydrogen phosphate, magnesium sulfate heptahydrate, glucose, and water in a mass ratio of 15:10:0.2:0.1:0.05:0.3:100.

[0027] Step three: After the bamboo stumps have decomposed, return them to the field in situ, and apply a soil conditioner and EM (Effective Microorganisms) agent to the soil around them. The soil conditioner is applied at a rate of 2.5 kg / m². 2 Application range 2m 2 The EM agent has a mass fraction of 0.2% and an application rate of 25 g / m³. 2 The modifier is activated carbon, humic acid, vermiculite and bentonite in a mass ratio of 10:1:3:5.

[0028] Comparative Example 1

[0029] Traditional physical methods were used to remove bamboo stumps, specifically referring to the first two steps of "A Method for Removing Bamboo Stumps in a Bambusa Garden", namely steps (1) and (2). The application number for "A Method for Removing Bamboo Stumps in a Bambusa Garden" is 201610889836.0, and the publication number is CN 106416929 A.

[0030] Comparative Example 2

[0031] Traditional chemical methods were used to remove bamboo stumps, specifically referring to the last two steps of "A Method for Removing Bamboo Stumps in Bambusa Gardens", namely steps (2) and (3). The application number for "A Method for Removing Bamboo Stumps in Bambusa Gardens" is 201610889836.0, and the publication number is CN 106416929 A.

[0032] Comparative Example 3

[0033] The bamboo stumps of Moso bamboo were removed entirely according to the method described in "A Method for Removing Bamboo Stumps in Moso Bamboo Gardens". The application number for "A Method for Removing Bamboo Stumps in Moso Bamboo Gardens" is 201610889836.0, and the publication number is CN 106416929A.

[0034] Experimental Example 1

[0035] A local bamboo forest was selected, and bamboo stumps were removed using Example 1 and Comparative Examples 1-3 respectively. 50 bamboo stumps were removed in each group, and the decay cycle, soil pH change, increase in organic matter content, bamboo fiber degradation rate and bamboo powder waste utilization rate were counted. See Table 1 for details.

[0036] Indicators | Example 1 | Comparative Example 1 | Comparative Example 2 | Comparative Example 3 | Decomposition Cycle | 4-6 months | Natural Decomposition | >120 months | 18-24 months | 24-48 months | Soil pH Change | 6.5-7.0 | 6.5-7.0 | 4.5-5.0 | 6.0-7.5 | Organic Matter Content Increase | 25-30% | No Significant Change | <5% | 5-10% | Bamboo Fiber Degradation Rate | 95-98% | Natural Degradation | <5% | 40-50% | 60-70% | Bamboo Powder Waste Utilization Rate | >95% | 0% | 0% | 0% surface

[0037] As shown in Table 1, compared with the prior art, the present invention can significantly reduce the decay cycle of bamboo stumps, significantly improve the degradation rate of bamboo fiber and the content of soil organic matter, and take into account both ecological safety and economic benefits.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for removing bamboo stumps from moso bamboo, characterized in that, Includes the following steps: Step 1: Drill several holes vertically into the bamboo wall surface, then spray a pretreatment solution onto the bamboo stump surface; Step 2: Fill the drilled holes with a compound bacterial solution, spraying a nutrient solution every 5-7 days; After 20-25 days, fill the drilled holes with a decomposition accelerator, repeating this process every 8-12 days until the bamboo stump rots; Step 3: After the bamboo stump has rotted, return it to the field in situ and apply a soil conditioner to the surrounding soil; The pretreatment solution mentioned in Step 1 consists of urea, sucrose, and water in a mass ratio of 1:2:200; The amount of the compound bacterial solution used in step two is 5-10 g / well, the amount of the nutrient solution is 50-100 mL / well, and the amount of the preservative is 10-20 g / well. The compound bacterial solution in step two includes compound bacterial powder and culture medium in a mass ratio of 1:

100. The nutrient solution is a glucose solution with a mass fraction of 0.1-0.2%. The preservative includes urea peroxide, ferric ammonium citrate, sodium dodecylbenzenesulfonate, nano titanium dioxide, and water in a mass ratio of 15:8:2:1:

75.

2. The method for removing bamboo stumps of moso bamboo according to claim 1, characterized in that, The drilling diameter in step one is 5~8mm and the depth is 10~15cm.

3. The method for removing bamboo stumps of moso bamboo according to claim 1, characterized in that, The amount of pretreatment solution used in step one is 200~300mL / mu.

4. The method for removing bamboo stumps of moso bamboo according to claim 1, characterized in that, The compound bacterial powder includes freeze-dried white rot fungus powder and Bacillus subtilis powder in a mass ratio of 4:

1. The culture medium consists of bamboo powder, wheat bran, ammonium sulfate, potassium dihydrogen phosphate, magnesium sulfate heptahydrate, glucose, and water in a mass ratio of 15:10:0.2:0.1:0.05:0.3:

100.

5. The method for removing bamboo stumps of moso bamboo according to claim 1, characterized in that, The dosage of the improver mentioned in step three is 2~3 kg / m³. 2 Application range: 1-2m 2 .

6. The method for removing bamboo stumps of moso bamboo according to claim 1, characterized in that, The modifier mentioned in step three is activated carbon, humic acid, vermiculite and bentonite in a mass ratio of 10:1:3:

5.

7. The method for removing bamboo stumps of moso bamboo according to claim 1, characterized in that, In step three, 0.2% EM (Effective Microorganisms) agent is applied as a supplement when applying the conditioner, at a dosage of 20-30 g / m³. 2 .