A method for interplanting soapberry and honeysuckle

Abstract

The application discloses a kind of Gleditsia delavayrensis and honeysuckle intercropping planting methods, belong to Gleditsia delavayrensis and honeysuckle intercropping technical field, the method includes soil treatment, cutting collection and processing, planting and later management and so on step, by preparing a kind of nutrient ball, cutting is inserted into nutrient ball and is planted in sandy soil, by nutrient ball guarantee Gleditsia delavayrensis and honeysuckle cutting early stage nutrient, water supply, improve survival rate and early stage growth, so that itself has good resistance Gleditsia delavayrensis and honeysuckle can be well survived and grown in sandy area soil, and then effectively improve the ecological environment of sandy area.

Description

Technical Field

[0001] This invention relates to the field of intercropping technology of soapberry and honeysuckle, and more particularly to a method for intercropping soapberry and honeysuckle. Background Technology

[0002] Since the 1970s, desertification in the Yellow River Basin has generally gone through a process of rapid development, slowing down, and then significant reversal. In recent years, with the implementation of a series of ecological restoration measures, the ecological environment of the Yellow River Basin has been significantly improved, but further governance measures are still needed to reduce soil erosion.

[0003] Soapberry (Gleditsia sinensis) is a unique ecological and economic tree species in my country, possessing excellent biological traits such as a well-developed root system, nitrogen fixation, pollution resistance, disease and pest resistance, wide adaptability, and strong stress resistance. It has great market potential and high product added value. It has been selected as one of the "Top Ten Recommended Tree Species for Ecological Governance in the Yellow River Basin" and is a preferred tree species for the National Reserve Forest Project. Soapberry has significant application potential in curbing ecological degradation in desertified areas, improving the ecological environment of the Yellow River Basin, and promoting high-quality development in the Yellow River Basin. Honeysuckle, a unique and precious traditional Chinese medicine, has considerable economic benefits. Its well-developed root system can cover a large area of ​​rock and soil, conserve water, and increase soil fertility, making it an excellent resource for slope stabilization, embankment protection, and soil and water conservation. Intercropping plants can form a more stable composite system; therefore, intercropping Soapberry and Honeysuckle in desertified areas can not only improve the treatment effect but also significantly increase economic value.

[0004] However, the soil in desertified areas has poor water and fertilizer retention capacity, and the plants can absorb and utilize less water and nutrients when they are first planted, resulting in a low survival rate of plant cultivation. This leads to low efficiency in the management of desert areas. In order to ensure the survival of seedlings, frequent watering and fertilization are required, which greatly increases the cost of manpower and materials. Summary of the Invention

[0005] In view of the above-mentioned technical problems, the purpose of this invention is to provide a method for intercropping honeysuckle and soapberry, which solves the problem of low survival rate of plants in desertified areas due to insufficient soil moisture and nutrient supply when cultivating plants in conventional methods. At the same time, it effectively reduces the cost of human and material input and promotes the process of ecological environment management in desertified areas.

[0006] The present invention solves the above-mentioned technical problems through the following technical means:

[0007] A method for intercropping honeysuckle and soapberry, the method is as follows:

[0008] (1) Soil treatment: Remove weeds and miscellaneous trees, and then carry out deep plowing and turning of the soil;

[0009] (2) Collection and treatment of cuttings: From mid-March to mid-April, collect cuttings of soapberry and honeysuckle from healthy mother trees. After pruning to a suitable length, disinfect them in a 0.1-0.2% carbendazim solution for 1-2 minutes. After disinfection, soak the roots in a 500ppm ABT rooting powder solution for 5-10 seconds. Soak the nutrient balls in water for 1-5 hours, and then insert the soaked cuttings into the water-soaked nutrient balls.

[0010] (3) Planting: Dig planting holes in the tilled soil, place the nutrient balls with cuttings of soapberry and honeysuckle in the planting holes in the intercropping manner, with the cuttings upright and the nutrient balls straight, and then backfill the planting holes with soil and compact the soil.

[0011] (4) Post-operative care: In the later stage, the cuttings of soapberry and honeysuckle can be managed and maintained in accordance with conventional methods, including weeding and pest and disease control.

[0012] By intercropping honeysuckle and soapberry together, a more stable composite system is formed. Together, they play a role in preventing wind erosion and sand fixation, inhibiting soil erosion, improving the ecological environment of desertified areas in the Yellow River Basin, increasing land utilization, and enhancing economic value.

[0013] Furthermore, the nutrient balls comprise the following raw materials:

[0014] Peat moss, perlite, decomposed cow dung, tannic acid, bentonite, ammonium benzoate, phenolic resin, L-asparagine, corn starch, tetraethylammonium hydroxide, p-toluenesulfonic acid, vermiculite.

[0015] Furthermore, the method for preparing the nutrient balls is as follows:

[0016] A: Mix peat moss, perlite and well-rotted cow manure evenly, adjust the moisture content to 50-60%, adjust the pH to 7, let stand for 1-2 days, add tannic acid and mix evenly to obtain the inner layer base material.

[0017] B: Dissolve corn starch in water and heat to gelatinize it into a gel. After cooling to room temperature, add tetraethylammonium hydroxide and mix thoroughly. Then dry and pulverize to obtain filler particles.

[0018] C: Dissolve phenolic resin in ethanol, dilute with water, add L-asparagine, heat to react, cool to room temperature, then add bentonite and ammonium benzoate and stir to react for 10-20 minutes. Then add p-toluenesulfonic acid, filler particles and vermiculite and mix evenly to obtain the outer layer base material.

[0019] D: After shaping the inner base material into balls, wrap them with an outer base material and leave them at room temperature for 1-2 days to obtain nutrient balls.

[0020] When propagating soapberry and honeysuckle by cuttings, ensuring adequate water and nutrient supply and good air circulation around the roots are crucial for successful propagation. This invention uses a method of inserting nutrient balls into the planting holes before planting soapberry and honeysuckle. The nutrient balls ensure adequate water and nutrient supply and air circulation in the early stages, thereby guaranteeing a high survival rate and better fulfilling the functions of slope stabilization, soil and water conservation, effectively improving soil properties in desertified areas, and promoting ecological restoration.

[0021] The nutrient ball prepared by this invention has a double-layer structure. The inner layer is made from peat moss, perlite, well-rotted cow manure, and tannic acid, possessing good water absorption and permeability. While ensuring the flow of water, nutrients, and oxygen, it can drain excess water, preventing root rot caused by excessive moisture. Tannic acid also has antibacterial and antiseptic properties, inhibiting microbial damage to the cuttings. However, while ensuring the permeability of the inner layer, its water permeability also increases, leading to water loss into the sandy soil. Therefore, this invention also prepares an outer layer to cover the inner layer. Specifically, the bentonite in the outer layer has good water absorption, and together with ammonium benzoate, it adsorbs and retains the water drained from the inner layer. As the water in the inner layer is absorbed and utilized by the plant, the outer layer continuously releases water into the inner layer, thus maintaining a long-term water supply. To ensure the structural stability of the nutrient ball and prevent its collapse, phenolic resin is added to the outer layer, providing good support and fixation after curing.

[0022] After the cuttings survive in the nutrient bulb, they gradually grow roots. At this time, the stable structure of the nutrient bulb will hinder the extension of the roots. Therefore, L-asparagine is used to treat the phenolic resin to change the internal molecular structure of the phenolic resin and increase its hydrolytic activity. Combined with the tetraethylammonium hydroxide released by the disintegration of the filling particles, the molecular chains of the phenolic resin are broken in the high humidity environment of the outer structure, so that the phenolic resin gradually decomposes and loses its structural support. As a result, the structure of the nutrient bulb gradually becomes loose, and the roots can extend better.

[0023] Furthermore, in step A, the mass ratio of peat moss, perlite, decomposed cow dung, and tannic acid is (3-6):(1-2):(2-4):(0.01-0.03).

[0024] Furthermore, in step B, the mass ratio of corn starch to tetraethylammonium hydroxide is (0.2-0.4):(0.1-0.2).

[0025] Further, in step C, the mass ratio of phenolic resin, L-asparagine, bentonite, ammonium benzoate, p-toluenesulfonic acid, filler particles, and vermiculite is (0.2-0.5): (0.02-0.05): (4-7): (0.1-0.3): (0.01-0.04): (0.2-0.4): (0.5-1).

[0026] Furthermore, in step C, the heating reaction temperature is 80-90℃, and the reaction time is 20-30 min.

[0027] Furthermore, in step D of the preparation of the nutrient ball, the mass ratio of the inner layer base material to the outer layer base material is (3-7):(1-4).

[0028] Furthermore, the diameter of the nutrient balls prepared is 5-10 cm.

[0029] Furthermore, in step (3), the plant spacing of soapberry is 1.5-3m, and the plant spacing of honeysuckle is 0.4-1m; the row spacing between soapberry and honeysuckle is 1-2m.

[0030] Beneficial effects:

[0031] 1. This invention discloses a mixed planting method of intercropping honeysuckle and soapberry, which can not only form a more stable composite ecosystem and play a better role in windbreak and sand fixation and soil and water conservation, but also improve land utilization and increase economic value.

[0032] 2. In this invention, cuttings are inserted into nutrient balls and then buried in the soil. The nutrient balls ensure the survival of the cuttings, thereby improving the survival rate of soapberry and honeysuckle in desertified soil. Soapberry and honeysuckle with better stress resistance can grow better in desertified soil, play a role in windbreak and sand fixation, water and soil conservation, and promote the restoration of the ecological environment in desertified areas. Attached Figure Description

[0033] Figure 1 Images showing the growth of soapberry and honeysuckle after intercropping according to the present invention. Detailed Implementation

[0034] The present invention will now be described in detail with reference to specific embodiments and accompanying drawings:

[0035] Example 1: Preparation of Nutrient Balls

[0036] A: Mix 4kg of peat soil, 1.5kg of perlite and 3kg of well-rotted cow manure evenly, adjust the moisture content to 55%, adjust the pH to 7, let it stand for 1 day, add 0.02kg of tannic acid and mix evenly to obtain the inner layer base material;

[0037] B: Dissolve 0.3 kg of corn starch in 3 kg of water, heat to 65°C and stir to gelatinize to form a gel. After cooling to room temperature, add 0.15 kg of tetraethylammonium hydroxide and mix thoroughly. Then dry at 45°C and pulverize to a particle size of about 0.2 mm to obtain filler particles.

[0038] C: Dissolve 0.3 kg of phenolic resin in 1.5 kg of ethanol, then dilute with 9 kg of water. Add 0.03 kg of L-asparagine, heat to 85°C and react for 25 min. After the reaction is complete, cool to room temperature, add 6 kg of bentonite and 0.2 kg of ammonium benzoate, stir and react for 15 min, then add 0.03 kg of p-toluenesulfonic acid, 0.3 kg of filler particles, and 0.8 kg of vermiculite and mix evenly to obtain the outer base material.

[0039] D: After kneading the inner base material into balls, coat it with an outer base material. The mass ratio of the inner base material to the outer base material is 5:2. Prepare spheres with a particle size of about 6cm and place them at room temperature for 2 days to obtain nutrient balls.

[0040] Example 2: Preparation of Nutrient Balls

[0041] A: Mix 3kg of peat soil, 1kg of perlite and 2kg of well-rotted cow manure evenly, adjust the moisture content to 50%, adjust the pH to 7, let stand for 1 day, add 0.01kg of tannic acid and mix evenly to obtain the inner layer base material;

[0042] B: Dissolve 0.2 kg of corn starch in 2 kg of water, heat to 65°C and stir to gelatinize to form a gel. After cooling to room temperature, add 0.1 kg of tetraethylammonium hydroxide and mix thoroughly. Then dry at 45°C and pulverize to a particle size of about 0.2 mm to obtain filler particles.

[0043] C: Dissolve 0.2 kg of phenolic resin in 1 kg of ethanol, then dilute with 6 kg of water, add 0.02 kg of L-asparagine, heat to 80°C and react for 20 min. After the reaction is complete, cool to room temperature, add 4 kg of bentonite and 0.1 kg of ammonium benzoate, stir and react for 12 min, then add 0.01 kg of p-toluenesulfonic acid, 0.2 kg of filler particles and 0.5 kg of vermiculite and mix evenly to obtain the outer layer base material;

[0044] D: After kneading the inner base material into balls, coat it with an outer base material. The mass ratio of the inner base material to the outer base material is 5:2. Prepare spheres with a particle size of about 6cm and place them at room temperature for 1 day to obtain nutrient balls.

[0045] Example 3: Preparation of Nutrient Balls

[0046] A: Mix 6kg of peat soil, 2kg of perlite and 4kg of well-rotted cow manure evenly, adjust the moisture content to 60%, adjust the pH to 7, let stand for 2 days, add 0.03kg of tannic acid and mix evenly to obtain the inner layer base material;

[0047] B: Dissolve 0.4 kg of corn starch in 4 kg of water, heat to 65°C and stir to gelatinize to form a gel. After cooling to room temperature, add 0.2 kg of tetraethylammonium hydroxide and mix thoroughly. Then dry at 45°C and pulverize to a particle size of about 0.2 mm to obtain filler particles.

[0048] C: Dissolve 0.5 kg of phenolic resin in 2.5 kg of ethanol, then dilute with 15 kg of water, add 0.05 kg of L-asparagine, heat to 90 °C and react for 30 min. After the reaction is complete, cool to room temperature, add 7 kg of bentonite and 0.3 kg of ammonium benzoate, stir and react for 20 min, then add 0.04 kg of p-toluenesulfonic acid, 0.4 kg of filler particles and 1 kg of vermiculite and mix evenly to obtain the outer base material;

[0049] D: After kneading the inner base material into balls, coat it with an outer base material. The mass ratio of the inner base material to the outer base material is 5:2. Prepare spheres with a particle size of about 8cm and place them at room temperature for 2 days to obtain nutrient balls.

[0050] Comparative Example 1: Preparation of Nutrient Balls

[0051] In contrast to Example 1, the only difference is that L-asparagine was not added during the preparation of the nutrient balls in Comparative Example 1, as detailed below:

[0052] AB: Same as Example 1;

[0053] C: Dissolve 0.3 kg of phenolic resin in 1.5 kg of ethanol, then dilute with 9 kg of water. Add 6 kg of bentonite and 0.2 kg of ammonium benzoate and stir for 15 min. Then add 0.03 kg of p-toluenesulfonic acid, 0.3 kg of filler particles, and 0.8 kg of vermiculite and mix evenly to obtain the outer base material.

[0054] D: Same as Example 1.

[0055] Comparative Example 2: Preparation of Nutrient Balls

[0056] Compared with Example 1, the only difference is that ammonium benzoate was not added during the preparation of the nutrient balls in Comparative Example 2, as detailed below:

[0057] AB: Same as Example 1;

[0058] C: Dissolve 0.3 kg of phenolic resin in 1.5 kg of ethanol, then dilute with 9 kg of water, add 0.03 kg of L-asparagine, heat to 85°C and react for 25 min. After the reaction is complete, cool to room temperature, add 6 kg of bentonite and stir for 15 min. Then add 0.03 kg of p-toluenesulfonic acid, 0.3 kg of filler particles, and 0.8 kg of vermiculite and mix evenly to obtain the outer base material.

[0059] D: Same as Example 1.

[0060] Comparative Example 3: Preparation of Nutrient Balls

[0061] In contrast to Example 1, the only difference is that no filler particles were added during the preparation of the nutrient balls in Comparative Example 3, as detailed below:

[0062] A: Same as Example 1;

[0063] B: Dissolve 0.3 kg of phenolic resin in 1.5 kg of ethanol, then dilute with 9 kg of water. Add 0.03 kg of L-asparagine, heat to 85°C and react for 25 min. After the reaction is complete, cool to room temperature, add 6 kg of bentonite and 0.2 kg of ammonium benzoate, stir and react for 15 min, then add 0.03 kg of p-toluenesulfonic acid and 0.8 kg of vermiculite and mix evenly to obtain the outer base material.

[0064] C: After kneading the inner base material into balls, an outer base material is then coated on top. The mass ratio of the inner base material to the outer base material is 5:2. The resulting balls have a diameter of about 6 cm and are placed at room temperature for 2 days to obtain nutrient balls.

[0065] Comparative Example 4: Preparation of Nutrient Balls

[0066] In contrast to Example 1, the only difference is that the nutrient balls in Comparative Example 4 were prepared without an outer layer structure, as detailed below:

[0067] Mix 4 kg of peat moss, 1.5 kg of perlite, and 3 kg of well-rotted cow manure evenly, then adjust the moisture content to 55% and the pH to 7. Let it stand for 1 day, then add 0.02 kg of tannic acid and mix evenly to obtain the inner layer substrate. Shape the inner layer substrate into spheres with a diameter of about 6 cm to obtain nutrient balls.

[0068] Comparative Example 5: Preparation of Nutrient Balls

[0069] In contrast to Example 1, the only difference is that in Comparative Example 5, the nutrient balls were not prepared as a double-layer structure, but rather as a mixed structure, as detailed below:

[0070] AC: Same as in Example 1;

[0071] D: Mix the inner and outer base materials evenly at a mass ratio of 5:2, then shape them into balls with a diameter of about 6cm, and leave them at room temperature for 2 days to obtain nutrient balls.

[0072] Comparative Example 6: Preparation of Nutrient Balls

[0073] In contrast to Example 1, the difference lies in the fact that the outer filler of the nutrient balls in Comparative Example 6 was prepared solely from bentonite, ammonium benzoate, and vermiculite, as detailed below:

[0074] A: Same as Example 1;

[0075] B: Take 6 kg of bentonite and add it to 9 kg of water. Add 0.2 kg of ammonium benzoate and stir for 15 min. Then add 0.8 kg of vermiculite and mix evenly to obtain the outer base material.

[0076] C: After kneading the inner base material into balls, an outer base material is then coated on top. The mass ratio of the inner base material to the outer base material is 5:2. The resulting balls have a diameter of about 6 cm and are placed at room temperature for 2 days to obtain nutrient balls.

[0077] Example 4: Intercropping method of soapberry and honeysuckle

[0078] (1) Soil treatment: Remove weeds and miscellaneous trees, and then carry out deep plowing and turning of the soil;

[0079] (2) Collection and treatment of cuttings: In late March, branches with a diameter of about 1 cm were collected from healthy 4-year-old disease-free and vigorous Gleditsia sinensis mother trees as Gleditsia sinensis cuttings and cut to a length of about 12 cm; healthy 2-year-old semi-lignified branches were collected from vigorous and disease-free Lonicera japonica mother trees as Lonicera japonica cuttings and cut to a length of about 30 cm. The lower part of the cuttings was cut at an angle, the lower leaves were removed, and 1-2 leaves were left on the upper part; the Gleditsia sinensis cuttings and Lonicera japonica cuttings were disinfected in a 0.1% carbendazim solution for 2 min, and then the cut ends of the disinfected cuttings were immersed in a 500 ppm ABT rooting powder solution for 10 s; nutrient balls with a diameter of about 6 cm were prepared according to the method in Example 1, and soaked in water for 1-5 h, and then the root-soaked cuttings were inserted into the nutrient balls after water absorption, with 1 cutting per ball;

[0080] (3) Planting; Soapberry and honeysuckle are intercropped in the soil after tilling. Specifically, the planting holes are dug according to the specifications of 2m plant spacing for soapberry, 0.8m plant spacing for honeysuckle, and 1.2m row spacing between soapberry and honeysuckle. Then, the nutrient balls with soapberry and honeysuckle cuttings are placed in the planting holes in the intercropping manner. The cuttings are upright and the nutrient balls are straightened. Then, the soil is backfilled into the planting holes and slightly compacted.

[0081] (4) Post-operative care: In the later stage, the cuttings of soapberry and honeysuckle can be managed in accordance with conventional methods, including pest and disease control, weeding, pruning and other maintenance operations.

[0082] Experiment 1: Propagation of Soapberry by Cuttings from Nutrient Bulbs

[0083] Nutrient balls were prepared according to the methods of Example 1 and Comparative Examples 1-6. Then, flower pots were filled with sand, and the prepared nutrient balls were buried in the sand in the flower pots. Each pot was filled with 1 kg of water and placed indoors for 5 days. The water content in the middle (inner structure) of each nutrient ball was then measured, and the data are shown in Table 1.

[0084] Table 1

[0085]

[0086] Based on the data analysis in Table 1, we can conclude that:

[0087] In Example 1, the inner layer of the nutrient ball has a water content of 60%, which is suitable for the water content requirements of the substrate soil during the growth of cuttings and can play a good role in the survival of cuttings.

[0088] In Comparative Example 2, no ammonium benzoate was added during the preparation of the nutrient balls. Due to the effect of bentonite, the water-locking capacity of the outer layer structure was poor, and water was lost and discharged. After being placed indoors for a long time, the amount of water that could enter the inner layer structure decreased, and the water content of the inner layer structure decreased. In Comparative Example 4, only the inner layer structure was used to prepare the nutrient balls. After being buried in sand for 5 days, the water content was severely lost, and the content dropped to 35%. Without frequent replenishment of external water, it would not meet the water content required for the growth of the cuttings. In Comparative Example 5, the nutrient balls were not prepared as a double-layer structure. Instead, the inner and outer substrate materials were mixed and kneaded into balls. The overall water-locking capacity of the nutrient balls was improved. However, the excessive water content would cause water accumulation at the roots of the cuttings, resulting in rot and death of the cuttings.

[0089] Experiment 2: Intercropping of Gleditsia sinensis and Lonicera japonica

[0090] An intercropping experiment of *Gleditsia sinensis* and *Lonicera japonica* was conducted in the desertified area of ​​the old course of the Yellow River (Funingji Town, Yuanyang County, Xinxiang City, Henan Province). A separate area was designated as the experimental area, which was divided into 8 regions, corresponding to experimental group 1, control groups 1-6, and blank control group. Specifically, experimental group 1 used the nutrient balls prepared by the method in Example 1 and the intercropping method in Example 4; comparative examples 1-3 and 5-6 used the nutrient balls prepared by comparative examples 1-3 and 5-6 respectively and the intercropping method in Example 4; since the nutrient balls of comparative example 4 have no outer layer structure and are prone to disintegration when absorbing water, the nutrient balls of comparative example 4 were not placed in water to absorb water, but were planted in the soil and watered with 2 kg of water per plant; the blank control group did not use nutrient balls, but directly inserted the cuttings into the sandy soil. The same management methods were followed afterward, and the survival rate of the cuttings was recorded 25 days after the cuttings were planted. 35 days after the cuttings were planted, 5 cuttings were randomly selected from each group and the soil around the roots was removed to observe the root extension in the nutrient bulb (root extension into the external sandy soil was considered as extension). The number of cuttings planted in each group was 20. The experiment was repeated three times and the average data are shown in Table 2.

[0091] Table 2

[0092]

[0093] Based on the data analysis in Table 2, we can conclude that:

[0094] In experimental group 1, the survival rate of soapberry cuttings reached 80.0%, while in the blank control group without the use of nutrient balls, the survival rate of soapberry cuttings was only 46.7%, which was 33.3% lower than that in Example 1. This shows that the nutrient balls prepared by the present invention can significantly improve the survival rate of plant cuttings in sandy soil, and after survival and growth, they can play a good role in sand fixation in sandy soil.

[0095] In control group 1, no L-asparagine was added during the preparation of the nutrient balls, and in control group 3, no filler particles were added during the preparation of the nutrient balls. Although the reduction in the survival rate of soapberry cuttings was not high, in control group 1, out of a total of 15 plants investigated, 5 plants had no roots extending, and in control group 3, 9 plants had no roots extending. This indicates that the nutrient balls of control groups 1 and 5 significantly inhibited root extension.

[0096] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications and substitutions should be covered within the scope of the claims of the present invention. Technical aspects, shapes, and structures not described in detail in this invention are all well-known technologies.

Claims

1. A method for intercropping Gleditsia sinensis and Lonicera japonica, characterized in that, The method is as follows: (1) Soil treatment: Remove weeds and miscellaneous trees, and then carry out deep plowing and turning of the soil; (2) Collection and treatment of cuttings: From mid-March to mid-April, cuttings of soapberry and honeysuckle were collected and disinfected and then soaked in water. After soaking the nutrient bulbs in water for 1-5 hours, the root-soaked cuttings were inserted into the water-soaked nutrient bulbs. (3) Planting: Dig planting holes in the tilled soil, place the nutrient balls with cuttings of soapberry and honeysuckle in the planting holes in the intercropping manner, with the cuttings upright and the nutrient balls straight, and then backfill the planting holes with soil and compact the soil. (4) Post-propagation care: The cuttings of soapberry and honeysuckle can be cared for in the later stages using conventional methods; The nutrient balls comprise the following raw materials: Peat moss, perlite, decomposed cow dung, tannic acid, bentonite, ammonium benzoate, phenolic resin, L-asparagine, corn starch, tetraethylammonium hydroxide, p-toluenesulfonic acid, vermiculite; The method for preparing the nutrient balls is as follows: A: Mix peat moss, perlite and well-rotted cow manure evenly, adjust the moisture content to 50-60%, adjust the pH to 7, let stand for 1-2 days, add tannic acid and mix evenly to obtain the inner layer base material. B: Dissolve corn starch in water and heat to gelatinize it into a gel. After cooling to room temperature, add tetraethylammonium hydroxide and mix thoroughly. Then dry and pulverize to obtain filler particles. C: Dissolve phenolic resin in ethanol, dilute with water, add L-asparagine, heat to react, cool to room temperature, then add bentonite and ammonium benzoate and stir to react for 10-20 minutes. Then add p-toluenesulfonic acid, filler particles and vermiculite and mix evenly to obtain the outer layer base material. D: After shaping the inner base material into balls, wrap it with an outer base material and leave it at room temperature for 1-2 days to obtain nutrient balls; In step A, the mass ratio of peat moss, perlite, well-rotted cow dung, and tannic acid is (3-6):(1-2):(2-4):(0.01-0.03). In step B, the mass ratio of corn starch to tetraethylammonium hydroxide is (0.2-0.4):(0.1-0.2). In step C, the mass ratio of phenolic resin, L-asparagine, bentonite, ammonium benzoate, p-toluenesulfonic acid, filler particles, and vermiculite is (0.2-0.5):(0.02-0.05):(4-7):(0.1-0.3):(0.01-0.04):(0.2-0.4):(0.5-1). In the preparation of the nutrient ball, the mass ratio of the inner layer base material to the outer layer base material in step D is (3-7):(1-4).

2. The method for intercropping honeysuckle and soapberry according to claim 1, characterized in that, In step C, the heating temperature is 80-90℃ and the reaction time is 20-30 min.

3. The method for intercropping honeysuckle and soapberry according to claim 2, characterized in that, The nutrient balls are prepared with a diameter of 5-10 cm.

4. The method for intercropping Gleditsia sinensis and Lonicera japonica according to claim 1, characterized in that, In step (3), the plant spacing of soapberry is 1.5-3m, and the plant spacing of honeysuckle is 0.4-1m; the row spacing between soapberry and honeysuckle is 1-2m.

Images