Carbon composite all-weather feeding targeted efficiency-improving corn one-hole double-plant densification planting method

Abstract

The invention relates to the technical field of agricultural planting, and discloses a one-hole double-plant densification planting method for carbon composite all-weather oxygen supply targeted efficiency improvement for corn, which comprises the following steps: step 1, in a soil preparation stage, applying an organic carbon source substance to improve the soil structure and improve the water and fertilizer retention capability of soil; step 2, before corn sowing, applying a microbial source biostimulant in combination with a base fertilizer, activating soil microorganisms, and promoting carbon source decomposition and nutrition conversion; step 3, a one-hole double-plant densification planting design is adopted, and two corn plants are planted in each hole, so that the planting density in unit area is increased. The organic sugar carbon fertilizer is applied in the soil preparation stage, and the fertilizer contains water-soluble carbon, humic acid and amino acid, so that the structure of soil is effectively improved, the water and fertilizer retention capacity of the soil is improved, the organic matter content of the soil is increased, and a better growth environment is provided for growth of crop roots.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural planting, and specifically to a method for increasing the density of corn planting by two plants in one hole with targeted efficiency improvement through carbon composite all-weather feeding. Background Art

[0002] With the continuous increase in global food demand, efficient planting and optimal resource utilization in agricultural production have become important issues that need to be solved urgently. As one of the world's major food crops, how to increase the yield of corn on limited land resources has become the core goal of modern agriculture. To this end, adopting reasonable planting density, optimizing water and fertilizer management, improving soil structure and promoting plant root growth have become research hotspots in modern efficient agriculture. In addition, in the development of modern sustainable agriculture, reducing the use of chemical fertilizers and pesticides, improving the utilization efficiency of fertilizers and water resources, and reducing the negative impact of agriculture on the environment are also important directions for future agricultural development.

[0003] At present, the traditional corn planting method mainly increases yields by increasing planting density and applying chemical fertilizers. However, over-reliance on chemical fertilizers and over-dense planting often lead to the deterioration of soil structure and a decrease in the organic matter content in the soil, which affects the soil's ability to retain water and fertilizer, resulting in uneven crop growth. In addition, traditional fertilization methods lack precision, have low fertilizer utilization rates, and often result in fertilizer loss, leading to deterioration of the farmland environment. At the same time, due to unreasonable planting density, corn root growth is restricted, and nutrient competition between plants intensifies, resulting in the inability to further improve the overall yield and quality of the crop.

[0004] In the prior art, the balance between corn planting density and nutrient resource supply has not been effectively solved. While increasing the density, traditional planting methods fail to reasonably allocate resources such as light and nutrients, resulting in intensified nutrient competition between plants and affecting crop yields. Existing fertilization methods and root management methods are also unable to effectively promote deep root development, and the nutrient absorption efficiency is low, thus failing to provide sufficient basic support for the steady growth of corn. Therefore, there is a need for an efficient planting method that can improve soil structure, enhance nutrient supply, and reasonably regulate corn planting density to improve the overall yield and quality of corn. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a method for increasing the density of corn by two plants in one hole with targeted efficiency improvement through carbon composite all-weather feeding, which solves the problem that traditional planting methods fail to reasonably allocate resources such as light and nutrients while increasing the density, resulting in intensified nutrient competition between plants and affecting crop yields.

[0006] To achieve the above objectives, the present invention is implemented through the following technical scheme: a method for increasing the density of corn planting by two plants in one hole with targeted efficiency improvement by carbon composite all-weather feeding, comprising the following steps:

[0007] Step 1: During the soil preparation stage, apply organic carbon sources to improve soil structure and enhance soil water and fertilizer retention capacity;

[0008] Step 2: Before corn is sown, apply microbial biostimulants in combination with base fertilizer to activate soil microorganisms and promote carbon source decomposition and nutrient conversion;

[0009] Step 3: Use a one-hole two-plant density planting design with a row spacing of 70 cm to 120 cm and a plant spacing of 25 cm to 34 cm to increase the planting density per unit area;

[0010] Step 4: During the corn seedling stage to the seedling stage, apply nutrients that promote root growth through the integrated water and fertilizer system;

[0011] Step 5: During the 3-5 leaf stage and grain filling stage of corn, spray leaf carbon enzyme fertilizer on the leaves to repair the leaf vascular bundle;

[0012] Step 6. During the growing period of corn, the intelligent water and fertilizer control system is used to monitor soil moisture, nutrient concentration and crop growth in real time, and dynamically control water and fertilizer supply.

[0013] Preferably, the organic carbon source material is organic sugar carbon fertilizer, the water-soluble carbon content is not less than 5.8%, and further contains 0.5%-1% humic acid, 0.2%-0.5% amino acid and 1%-2% organic matter.

[0014] Preferably, the microbial source biostimulant is MCBT biostimulant, and the MCBT contains microbial metabolites, enzymes and 0.1%-0.2% of beneficial bacteria, and the bacteria include actinomycetes and Bacillus.

[0015] Preferably, in step three, the dense planting design is such that the leaf area index of corn is maintained between 3.5 and 5.0.

[0016] Preferably, in step three, a special double-plant seeder has an automatic depth adjustment function, and automatically adjusts the sowing depth to between 5 cm and 7 cm according to soil conditions and planting density to ensure uniform distribution of corn seeds and uniform emergence of seedlings.

[0017] Preferably, the nutrient that promotes root growth is the Weimulu rooting technology composition, which contains 0.1%-0.2% of plant growth hormone, 0.5%-1% of vitamin C and 0.05%-0.1% of polyphenols. The application amount per mu is 5 jin, and water-soluble fertilizer is applied from the seedling stage to the seedling stage through an integrated water-fertilizer system.

[0018] Preferably, the leaf carbon enzyme fertilizer is applied during the 3-5 leaf stage and the grain filling stage of corn, 40 grams per mu, and can increase photosynthetic efficiency by 10%-20% after foliar spraying.

[0019] Preferably, the carbon source decomposition process follows the following formula:

[0020]

[0021] Where: R C (t) is the carbon decomposition rate (g / day), M C is the mass of organic carbon in the soil (g), E a is the activation energy (J / mol), R is the gas constant, T is the soil temperature, f(θ, pH, N mic 0 is the adjustment function related to soil moisture, pH value and microbial quantity.

[0022] Preferably, the photosynthetic efficiency of the corn leaves is calculated by the following formula:

[0023]

[0024] Where: P photo is the rate of photosynthesis product generation (mol / m 2 / s), Φ is the light energy utilization rate (%), I light is the light intensity (mol / m 2 / s), A leaf is the leaf area per unit plant (m 2 ), d leaf is the leaf spacing (m), and f(LAI) is the adjustment function of leaf area index on photosynthesis efficiency.

[0025] Preferably, the intelligent water and fertilizer regulation system includes a soil moisture sensor, a weather monitoring station, a plant canopy analyzer and a fuzzy control system. The system dynamically adjusts the water and fertilizer supply through the following feedback mechanism: when the soil moisture is lower than 30%, the water and fertilizer supply is increased; when the temperature exceeds 25 degrees Celsius and the humidity is less than 40%, the irrigation frequency is automatically increased; when the light intensity exceeds 1000 μmol / m 2 / s, reduce the amount of fertilizer.

[0026] The present invention provides a method for increasing the density of corn planting by two plants in one hole with carbon composite all-weather feeding and targeted efficiency improvement. It has the following beneficial effects:

[0027] 1. The present invention applies organic sugar carbon fertilizer in the soil preparation stage. The fertilizer contains water-soluble carbon, humic acid and amino acids, which effectively improves the soil structure, enhances the soil's water and fertilizer retention capacity, increases the soil's organic matter content, and provides a better growth environment for crop root growth. In addition, combined with the application of microbial biostimulants, the beneficial microorganisms in the soil are further activated, the decomposition of organic carbon is promoted, the fertilizer utilization rate is improved, and the soil fertility is enhanced.

[0028] 2. The present invention adopts a one-hole two-plant density planting design, which effectively increases the corn planting density per unit area. This planting design improves the crop planting density without increasing land use, rationally allocates light resources, and reduces nutrient competition between plants, thereby helping to increase the overall yield of corn.

[0029] 3. The present invention applies the Weimulu rooting technology composition through a water-fertilizer integrated system from the seedling stage to the seedling stage of corn to promote the growth of white roots of the root system. The plant growth hormone, vitamin C and polyphenols in the composition can effectively promote the development of the root system, making the corn root system deeper and wider, and enhancing the absorption capacity of water and nutrients, providing a basis for the steady growth of corn.

[0030] 4. The present invention sprays leaf carbon enzyme fertilizer on the leaves of corn at the 3-5 leaf stage and the grain filling stage to repair the vascular bundle of corn leaves and improve the photosynthesis channel. The fertilizer helps to improve the utilization efficiency of light energy through precise foliar spraying, ensures that the plant can fully photosynthesize at the key growth stage, promotes the conversion and accumulation of nutrients, and provides more energy for the development of grains. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The figure is a flow chart of the method of the present invention. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0033] Embodiment 1:

[0034] Please see attached Figure 1 The embodiment of the present invention provides a method for increasing the density of corn planting by two plants in one hole with carbon composite all-weather feeding and targeted efficiency improvement, comprising the following steps:

[0035] Step 1: During the soil preparation stage, apply organic carbon sources to improve soil structure and enhance soil water and fertilizer retention capacity;

[0036] Step 2: Before corn is sown, apply microbial biostimulants in combination with base fertilizer to activate soil microorganisms and promote carbon source decomposition and nutrient conversion;

[0037] Step 3: adopt a one-hole two-plant density planting design, with a row spacing of 70 cm to 120 cm, a plant spacing of 25 cm to 34 cm, and two corn plants planted in each hole to increase the planting density per unit area;

[0038] Step 4: During the corn seedling stage to the seedling stage, apply nutrients that promote root growth through the integrated water and fertilizer system;

[0039] Step 5: During the 3-5 leaf stage and grain filling stage of corn, spray leaf carbon enzyme fertilizer on the leaves to repair the leaf vascular bundle;

[0040] Step 6. During the growing period of corn, the intelligent water and fertilizer control system is used to monitor soil moisture, nutrient concentration and crop growth in real time, and dynamically control water and fertilizer supply.

[0041] In one embodiment, soil preparation: During the soil preparation stage, the soil structure is improved by evenly applying organic sugar carbon fertilizer. The ingredients of organic sugar carbon fertilizer include no less than 5.8% water-soluble carbon, humic acid and amino acids, and the application amount is 20 kilograms per mu. During this application process, water-soluble carbon provides organic matter for soil microorganisms, humic acid improves soil structure, and amino acids provide initial nutrition for crops, enhancing the soil's ability to retain water and fertilizer, and increasing the soil's organic matter content to about 3%. Through tillage technology, fertilizers are evenly mixed into the soil to ensure that all layers of the soil absorb fertilizers evenly, improve soil fertility and air permeability, and provide a suitable growth environment for the root growth of corn.

[0042] Application of microbial biostimulants: Before corn sowing, apply MCBT microbial biostimulants together with base fertilizer. MCBT contains 0.1%-0.2% of beneficial bacteria, including actinomycetes and Bacillus, as well as enzymes and microbial metabolites. By activating the activity of microorganisms in the soil, MCBT can promote the decomposition and transformation of organic carbon sources, improve the effectiveness of nutrients, and increase the utilization rate of fertilizers. The specific application method is to apply 20 kilograms per mu of land and mix it with base fertilizer to ensure that the microorganisms can fully spread to the area around the crop roots and enhance the soil micro-ecosystem.

[0043] One-hole double-plant density planting: Double-plant sowing design is adopted during sowing, with row spacing of 70 cm to 120 cm and plant spacing of 25 cm to 34 cm. An automatic seeder is used to ensure uniform sowing, and the sowing depth is 5 cm to 7 cm to ensure that two corn plants can coexist and compete with each other for light and nutrients, while reducing space competition between plants. This planting design effectively increases the number of corn plants per unit area, thereby increasing the yield per unit area. The scientific design of planting density allows each corn plant to receive sufficient sunlight and reasonably allocates nutrient resources, reducing overcrowding and competition among plants caused by dense planting.

[0044] Root growth promotion: From the seedling stage to the seedling stage of corn, the Weimulu rooting technology composition is applied using a water-fertilizer integrated system. The composition contains 0.1%-0.2% of plant growth hormone, 0.5%-1% of vitamin C and 0.05%-0.1% of polyphenols, and the application amount is 5 kilograms per mu. Through drip irrigation or sprinkler irrigation, ensure that nutrients reach the roots of crops evenly, promote the formation of white roots, and enhance the root system's ability to absorb water and nutrients. The expansion of the root system helps to improve the utilization of water in the soil and enhance the drought resistance of crops.

[0045] Leaf photosynthesis optimization: Leaf carbonase fertilizer is sprayed on the leaves during the 3-5 leaf stage and the grain filling stage of corn. 40 grams of leaf carbonase fertilizer is applied per mu, and the corn leaves are evenly covered by foliar spray to ensure that the fertilizer acts directly on the crop leaves. Leaf carbonase activates the photosynthesis channels in the leaves and repairs damaged vascular bundles, allowing the leaves to absorb light energy more efficiently and convert it into nutrients required for plant growth. The application of leaf carbonase fertilizer is supported by experimental data and helps to enhance the production of photosynthesis products and ensure that corn kernels are fully developed during the grain filling period.

[0046] Intelligent water and fertilizer control system: During the corn growing period, soil moisture sensors, weather monitoring stations and plant canopy analyzers are installed to monitor soil moisture, temperature, light intensity and other environmental factors in real time. Through the intelligent water and fertilizer control system, water and fertilizer supply is dynamically adjusted according to monitoring data. The system increases the irrigation frequency when the soil moisture is lower than 30% or the temperature exceeds 25 degrees Celsius to ensure that corn can obtain stable water and nutritional support during the growth stage. At the same time, the system can adjust the amount of fertilizer according to the light intensity to avoid resource waste and environmental pollution caused by excessive fertilization.

[0047] The organic carbon source material is organic sugar carbon fertilizer, the water-soluble carbon content is not less than 5.8%, and further contains 0.5%-1% humic acid, 0.2%-0.5% amino acid and 1%-2% organic matter.

[0048] In one embodiment, the water-soluble carbon in the organic sugar carbon fertilizer helps to enhance the water and fertilizer retention of the soil, the humic acid can significantly improve the structure of the soil, promote soil granulation, enhance soil aeration, and increase soil biological activity, and the amino acid component can provide directly absorbable nitrogen to the crop roots, effectively improving the growth of crops. This formula ensures that the organic matter content of the soil is stable at a reasonable level, providing a stable basic nutrient source for subsequent crop growth.

[0049] The microbial source biostimulant is MCBT biostimulant, which contains microbial metabolites, enzymes and 0.1%-0.2% of beneficial bacteria, including actinomycetes and Bacillus.

[0050] In one embodiment, MCBT biostimulant activates beneficial microorganisms in the soil, promotes the decomposition of organic matter in the soil, and improves the biological activity of the soil. Actinomycetes have a strong ability to decompose organic matter, can effectively decompose organic carbon in the soil, and improve the recycling efficiency of soil organic matter. Bacillus helps promote the symbiotic relationship between plant roots and nutrients in the soil, and enhances the ability of crop roots to absorb nutrients. This combined technology can improve the effective utilization rate of fertilizers under low environmental loads, thereby reducing fertilizer loss.

[0051] In step three, the dense planting design maintains the leaf area index of corn between 3.5 and 5.0.

[0052] In one embodiment, the range design of row spacing and plant spacing has been verified by experiments to ensure that each corn plant can reasonably distribute light, air and nutrients in a limited space. The row spacing is 70 cm to 120 cm, and the plant spacing is 25 cm to 34 cm. It is an optimized design based on crop spacing and root expansion, leaf area growth and light utilization. This design not only increases the planting density per unit area, but also avoids nutrient competition and light shading caused by over-dense planting, ensuring the normal development of each corn plant.

[0053] In step three, a special double-plant seeder has an automatic depth adjustment function, and automatically adjusts the sowing depth to between 5 cm and 7 cm according to soil conditions and planting density to ensure uniform distribution of corn seeds and uniform emergence of seedlings.

[0054] In one embodiment, a special seeder can automatically adjust the sowing depth according to the looseness and humidity conditions of the soil to ensure that the corn seeds take root and germinate at the ideal depth. The rationality of the sowing depth has a direct impact on the germination rate and root development of the crop. The sowing depth of 5 cm to 7 cm has been experimentally verified to ensure a germination rate of more than 95%, while ensuring that the roots have sufficient growth space.

[0055] The nutrient that promotes root growth is the Weimulu rooting technology composition, which contains 0.1%-0.2% of plant growth hormone, 0.5%-1% of vitamin C and 0.05%-0.1% of polyphenols. The application amount is 5 kilograms per mu, and water-soluble fertilizer is applied from the seedling stage to the seedling stage through an integrated water-fertilizer system.

[0056] In one embodiment, the Weimulu rooting technology composition can effectively promote the initial growth of crop roots through a scientific formula containing auxin, vitamin C and polyphenols. Auxin can stimulate the division and expansion of root cells, vitamin C as an antioxidant can reduce oxidative damage to crop roots during growth and ensure healthy root development, polyphenols can help crop roots enhance their adaptability to the external environment and improve their stress resistance, and these substances can be evenly distributed near the crop roots through precise application of the integrated water and fertilizer system to ensure the consistency of root development of each corn plant.

[0057] Leaf carbon enzyme fertilizer is applied during the 3-5 leaf stage and the filling stage of corn, 40 grams per mu. After foliar spraying, it can increase photosynthetic efficiency by 10%-20%.

[0058] In one embodiment, leaf carbon enzyme fertilizer can activate enzymes in leaves, repair the vascular bundles of leaves, ensure that leaves absorb light energy more efficiently during photosynthesis, and convert light energy into nutrients. By spraying leaves at the 3-5 leaf stage and the grain filling stage, the photosynthesis efficiency can be effectively improved at the key growth stage of corn, ensuring that the crop obtains sufficient energy reserves during the grain formation period. Experimental data show that uniform spraying of leaf carbon enzyme fertilizer can effectively reduce the problem of decreased photosynthetic capacity.

[0059] The carbon source decomposition process follows the following formula:

[0060]

[0061] Where: R C (t) is the carbon decomposition rate (g / day), M C is the mass of organic carbon in the soil (g), E a is the activation energy (J / mol), R is the gas constant, T is the soil temperature, f(θ, pH, N mic ) is a regulating function related to soil moisture, pH value and microbial quantity.

[0062] In one embodiment, the formula is used to describe the kinetic process of carbon source decomposition in soil. The activity of microorganisms in the soil, especially the number of actinomycetes and bacillus under MCBT stimulation, has a significant effect on the decomposition rate of the carbon source. The various parameters in the formula have been verified in experiments to ensure that the carbon source can be evenly released during the growth of corn and fully converted into nutrients that can be absorbed by plants.

[0063] The photosynthetic efficiency of corn leaves is calculated by the following formula:

[0064]

[0065] Where: P photo is the rate of photosynthesis product generation (mol / m 2 / s), Φ is the light energy utilization rate (%), I light is the light intensity (mol / m 2 / s), A leaf is the leaf area per unit plant (m 2 ), d leaf is the leaf spacing (m), and f(LAI) is the adjustment function of leaf area index on photosynthesis efficiency.

[0066] In one embodiment, the formula is used to describe the photosynthetic efficiency of corn leaves under different lighting conditions, especially the utilization rate of light energy and the rate of photosynthetic product generation of leaves under different leaf area indexes and leaf spacing conditions. The various variables in the formula are verified based on experiments to ensure that the photosynthetic efficiency reaches the optimal value during the critical growth period of corn.

[0067] The intelligent water and fertilizer regulation system includes soil moisture sensors, weather monitoring stations, plant canopy analyzers and fuzzy control systems. The system dynamically adjusts water and fertilizer supply through the following feedback mechanisms: when soil moisture is lower than 30%, water and fertilizer supply is increased; when the temperature exceeds 25 degrees Celsius and the humidity is less than 40%, the irrigation frequency is automatically increased; when the light intensity exceeds 1000μmol / m 2 / s, reduce the amount of fertilizer.

[0068] In one embodiment, the intelligent water and fertilizer regulation system is combined with a fuzzy control algorithm to dynamically adjust the water and fertilizer supply by real-time monitoring of soil and meteorological data. The specific adjustment rules are optimized based on long-term experimental data to ensure that the system can flexibly respond to crop needs under different environmental conditions, maximize the utilization efficiency of water and fertilizer, and avoid waste of resources and deterioration of the soil environment.

[0069] In a preferred embodiment, a planting method suitable for northern dryland agriculture

[0070] For agricultural planting in the arid areas of the north, due to the scarcity of water resources and loose soil structure, this preferred embodiment adjusts the water and fertilizer management plan to enhance the drought resistance of crops and improve the utilization efficiency of fertilizers and water.

[0071] Soil preparation and carbon source application: In the soil preparation stage before sowing, 20 catties of organic sugar carbon fertilizer is applied per mu of land, of which the water-soluble carbon content is maintained at no less than 6%, the humic acid content is 0.5%-0.8%, and the amino acid content is 0.3%-0.4%. Since the organic matter content of dryland soil in the north is low, increasing the humic acid and amino acid content helps to enhance the water retention capacity and fertility of the soil. After fertilization, mechanical deep plowing is used to mix the fertilizer into the 10-15 cm soil layer to prevent water evaporation and maintain soil moisture.

[0072] Adjustment of microbial biostimulants: In view of the problem of insufficient microbial activity in the arid areas of the north, it is preferred to use microbial biostimulants MCBT, combined with humic acid, and the application rate per mu is increased to 25 catties, of which the content of beneficial bacteria is increased to 0.2%-0.25%. The proportion of actinomycetes and bacillus is increased to enhance the adaptability of microorganisms to dry soil environments and further promote the decomposition of organic carbon sources and the absorption of fertilizers.

[0073] Planting density and water and fertilizer management: Since the northern drylands have sufficient sunlight but scarce water resources, it is necessary to optimize the planting density, adopt a wider row spacing of 70 cm to 120 cm, and keep the plant spacing at 25 cm to 34 cm to reduce water competition between plants. At the same time, the integrated water and fertilizer drip irrigation system is used for precise irrigation, and the amount of each irrigation is adjusted by the real-time monitoring soil moisture sensor. When the soil moisture is lower than 25%, the system automatically increases the irrigation frequency to prevent crops from being damaged under drought conditions. Combined with the control algorithm, it ensures that the nutrient absorption rate reaches more than 90% each time fertilization is applied, reducing water evaporation and nutrient loss.

[0074] Improvement of leaf photosynthesis and drought resistance: During the 3-5 leaf stage and the grain filling stage, leaf carbonase fertilizer is sprayed on the leaves, and the application rate is adjusted to 50 grams per mu to ensure the continuity of photosynthesis in a high temperature and drought environment. Leaf carbonase not only repairs the leaf vascular bundle, but also enhances the drought resistance of the leaves, reduces water loss, and ensures that corn continues to photosynthesize efficiently under drought conditions.

[0075] In a preferred embodiment, the planting method suitable for the rainy areas in the south

[0076] The rainy areas in the south have abundant rainfall and high soil moisture, but fertilizers are easily lost. This preferred embodiment aims to reduce water and fertilizer loss and improve fertilizer utilization efficiency by optimizing fertilization methods and root management, thereby ensuring the healthy growth of crops in a high humidity environment.

[0077] Soil preparation and carbon source application: Before sowing, combined with the high humidity characteristics of the soil in the rainy southern region, reduce the application of organic sugar carbon fertilizer, apply 15 catties per mu, control the content of water-soluble carbon at 5.5%-6%, reduce the humic acid content to 0.4%-0.5%, and keep the amino acid at 0.2%-0.3%. This formula helps control the water retention capacity in the soil and prevents excessive water from accumulating in the surface layer, which affects the growth of the root system. After fertilization, use light tillage technology to mix the fertilizer into the 8-10 cm surface soil to maintain the air permeability of the surface layer.

[0078] Humidity control of microbial biostimulants: To avoid excessive decomposition of fertilizers in high humidity environments, the application rate of MCBT microbial stimulants is reduced to 18 catties per mu, and the proportion of beneficial bacteria is maintained at 0.15%-0.2%, with Bacillus as the main component and the proportion of actinomycetes reduced. This flora adjustment helps maintain microbial activity in high humidity environments, while avoiding excessive microbial growth caused by excessive humidity, which leads to excessive decomposition of carbon sources.

[0079] Planting density and water and fertilizer management: In the rainy areas in the south, due to the sufficient water, the planting density can be appropriately increased, with row spacing of 70 cm to 120 cm and plant spacing of 25 cm to 34 cm. In combination with the law of rain distribution, a precision drip irrigation system is used in the rainy season. The amount of irrigation is automatically adjusted according to the soil moisture each time. Irrigation is stopped when there is abundant rain to avoid excessive water supply. The nutrient concentration in the soil is monitored in real time through the intelligent water and fertilizer control system. When the fertilizer concentration is found to be too low, the system automatically starts fertilization to ensure the effective supply of nutrients in the soil and reduce the loss of water and nutrients.

[0080] Root strengthening and nutrient absorption: In the rainy environment of the south, the root system is prone to hypoxia due to excessive water, which affects nutrient absorption. The use of Weimulu rooting technology composition, in which the content of polyphenols is increased to 0.1%-0.15%, helps to enhance the resistance of the root system and prevent the root system from being damaged by excessive water. 5 catties per mu is applied during the seedling stage, and the water and fertilizer integrated system is used for precise delivery to ensure that the root system can continue to absorb sufficient nutrients in a high humidity environment.

[0081] Foliar management and photosynthesis regulation: Due to the frequent rains and weak light in the rainy areas in the south, in order to ensure the photosynthesis of crops under low light conditions, adjust the timing of applying leaf carbon enzyme fertilizer. During the 3-5 leaf stage and the filling stage, apply 40 grams of leaf carbon enzyme fertilizer per mu. When spraying on the leaves, combine the weather conditions to ensure that the leaves fully absorb the fertilizer during the period of good light conditions. After spraying the fertilizer, the vascular bundle of the leaves can be repaired and the photosynthetic capacity of the leaves on rainy days can be enhanced.

[0082] Comparative Example 1:

[0083] In the traditional corn planting method, the main method is single-plant planting, relying on large amounts of fertilizers and extensive irrigation to increase yields. The specific steps are as follows:

[0084] Soil preparation and fertilization:

[0085] Before sowing, basic soil cultivation is usually carried out, including tilling and fertilization. The fertilizer applied is mainly nitrogen-phosphorus-potassium (NPK) compound fertilizer, and the application amount per mu is about 80-100 kilograms. This fertilization method is to sow seeds and fertilizers at the same time through a seeder, in which the base fertilizer depth is 7-10 cm, and the horizontal distance between the base fertilizer and the seed hole is 8-10 cm.

[0086] Planting method:

[0087] Traditional corn planting mostly adopts a single-plant planting design, with a row spacing of 50-60 cm and a plant spacing of 25-30 cm. This planting design ensures that each corn plant has enough space for photosynthesis and nutrient absorption, but the corn planting density per unit area is low, usually about 4,500 plants per mu.

[0088] Irrigation management:

[0089] The main irrigation method is flooding, where the entire field is submerged in water each time, so that the water can reach the root surface and nearby areas. Although this method is simple and easy to implement, it has a low water utilization rate, and the water is easily evaporated or lost, resulting in uneven moisture in the soil, and it is impossible to regulate according to the actual water demand of the crop.

[0090] Management during the growth period:

[0091] During the corn growth period, no measures were taken to promote root growth and optimize photosynthesis. The corn mainly relied on growth under natural conditions, and the fertilization and irrigation methods were mainly based on experience, lacking precise control technology.

[0092] Production and environmental impact:

[0093] Due to the low utilization rate of fertilizer and water resources, the nutrient supply and photosynthesis effect between plants are limited, and the yield and quality of corn are limited, with the yield per mu usually being 700-800 kilograms. In addition, the excessive use of fertilizers and water resources leads to a certain degree of resource waste and environmental impact.

[0094]

[0095] Table 1

[0096] In traditional methods, fertilization and irrigation methods lack fine control, resulting in serious waste of resources. The present invention adopts precision drip irrigation and water-fertilizer integration technology, cooperates with the use of organic sugar carbon fertilizer and MCBT microbial stimulant, significantly improves the utilization efficiency of fertilizer and water, and reduces environmental pollution. The planting technology of the present invention optimizes root development and increases the root depth to 25-30 cm (compared to the traditional 15-20 cm), which not only improves the water and nutrient absorption capacity of crops, but also enhances the drought and waterlogging resistance of crops, so that crops grow more stably. Through these detailed comparative data and analysis, we can clearly see that the present invention has significant advantages over the prior art in improving corn planting efficiency, saving resources and reducing environmental burden.

[0097] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for increasing the density of corn planting by two plants in one hole with targeted efficiency improvement by carbon composite all-weather feeding, characterized in that: The following steps are involved: Step 1: During the soil preparation stage, apply organic carbon sources to improve soil structure and enhance soil water and fertilizer retention capacity; Step 2: Before corn is sown, apply microbial biostimulants in combination with base fertilizer to activate soil microorganisms and promote carbon source decomposition and nutrient conversion; Step 3: Use a one-hole two-plant density planting design with a row spacing of 70 cm to 120 cm and a plant spacing of 25 cm to 34 cm to increase the planting density per unit area; Step 4: During the corn seedling stage to the seedling stage, apply nutrients that promote root growth through the integrated water and fertilizer system; Step 5: During the 3-5 leaf stage and grain filling stage of corn, spray leaf carbon enzyme fertilizer on the leaves to repair the leaf vascular bundle; Step 6. During the growing period of corn, the intelligent water and fertilizer control system is used to monitor soil moisture, nutrient concentration and crop growth in real time, and dynamically control water and fertilizer supply.

2. The carbon composite all-weather feeding targeted efficiency-enhancing corn one-hole two-plant density planting method according to claim 1, characterized in that: The organic carbon source material is organic sugar carbon fertilizer, the water-soluble carbon content is not less than 5.8%, and further contains 0.5%-1% humic acid, 0.2%-0.5% amino acid and 1%-2% organic matter.

3. The carbon composite all-weather feeding targeted efficiency-enhancing corn one-hole two-plant density planting method according to claim 1, characterized in that: The microbial source biostimulant is MCBT biostimulant, and the MCBT contains microbial metabolites, enzymes and 0.1%-0.2% of beneficial bacteria, and the bacteria include actinomycetes and bacillus.

4. The method for increasing the density of corn planting by one hole and two plants with targeted efficiency improvement by carbon composite all-weather feeding according to claim 1, characterized in that: In step three, the dense planting design is used so that the leaf area index of corn is maintained between 3.5 and 5.

0.

5. The method for increasing the density of corn planting by two plants in one hole with targeted efficiency improvement by carbon composite all-weather feeding according to claim 1, characterized in that: In step three, a special double-plant seeder has an automatic depth adjustment function, and automatically adjusts the sowing depth to between 5 cm and 7 cm according to soil conditions and planting density to ensure uniform distribution of corn seeds and uniform emergence of seedlings.

6. The carbon composite all-weather feeding targeted efficiency-enhancing corn one-hole two-plant density-enhanced planting method according to claim 1, characterized in that: The nutrient substance for promoting root growth is the Weimulu rooting technology composition, which contains 0.1%-0.2% of plant growth hormone, 0.5%-1% of vitamin C and 0.05%-0.1% of polyphenols. The application amount per mu is 5 kilograms, and water-soluble fertilizer is applied from the seedling stage to the seedling stage through the water-fertilizer integrated system.

7. The method for increasing the density of corn by two plants in one hole with targeted efficiency improvement by carbon composite all-weather feeding according to claim 1, characterized in that: The leaf carbon enzyme fertilizer is applied during the 3-5 leaf stage and the grain filling stage of corn, 40 grams per mu, and can improve photosynthetic efficiency by 10%-20% after foliar spraying.

8. The carbon composite all-weather feeding targeted efficiency-enhancing corn one-hole two-plant density-enhanced planting method according to claim 1, characterized in that: The carbon source decomposition process follows the following formula: Where: R C (t) is the carbon decomposition rate (g / day), M C is the mass of organic carbon in the soil (g), E a is the activation energy (J / mol), R is the gas constant, T is the soil temperature, f(θ, pH, N mic 0 is the adjustment function related to soil moisture, pH value and microbial quantity.

9. The method for increasing the density of corn planting by two plants in one hole with targeted efficiency improvement by carbon composite all-weather feeding according to claim 1, characterized in that: The photosynthetic efficiency of the corn leaves was calculated by the following formula: Where: P photo is the rate of photosynthesis product generation (mol / m 2 / s), Φ is the light energy utilization rate (%), I light is the light intensity (mol / m 2 / s), A leaf is the leaf area per unit plant (m 2 ), d leaf is the leaf spacing (m), f(LAI0) is the adjustment function of leaf area index on photosynthesis efficiency.

10. The carbon composite all-weather feeding targeted efficiency-enhancing corn one-hole two-plant density-enhanced planting method according to claim 1, characterized in that: The intelligent water and fertilizer regulation system includes a soil moisture sensor, a weather monitoring station, a plant canopy analyzer and a fuzzy control system. The system dynamically adjusts the water and fertilizer supply through the following feedback mechanism: when the soil moisture is lower than 30%, the water and fertilizer supply is increased; when the temperature exceeds 25 degrees Celsius and the humidity is less than 40%, the irrigation frequency is automatically increased; when the light intensity exceeds 1000 μmol / m2 / s, the amount of fertilizer is reduced.

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