107 results about "Red soil" patented technology

The invention relates to the technical field of agriculture, provides a red soil hardening reduction conditioner based on modified straw adsorption carbon as well as a preparation method and application thereof, and solves the problems that an existing red soil hardening conditioner is poor in soil improvement effect and does not have a slow release function. Comprising the following steps: (1) preparing oyster shell-biochar composite powder; (2) loading functional components; (3) directional immobilization of microorganisms; (4) coating a slow-release layer; (5) activating treatment; the red soil hardening reduction conditioner is prepared from the following raw materials in parts by weight: 80 to 100 parts of oyster shell powder, 100 to 200 parts of modified straw adsorption carbon, 10 to 30 parts of rice hull powder, 30 to 50 parts of nano dihydrate gypsum, 100 to 200 parts of a polyglutamic acid solution, 10 to 50 parts of acid-resistant bacillus, 15 to 30 parts of sodium alginate, 30 to 60 parts of humic acid, 10 to 30 parts of carbide slag and 30 to 60 parts of attapulgite.

The invention discloses a concave-convex high-skid-resistance archaized brick and a preparation process thereof, and relates to the field of building materials. When the concave-convex high-skid-resistance archaized brick is prepared, ferrochrome waste residues, coal ash, argil, quartz sand, clay powder and red soil powder are subjected to mold pressing and roasting, and a green brick is prepared; mixing albite, quartz, calcite, zinc oxide, barium carbonate, deionized water, water glass and American water, glazing the surface of a green brick, and roasting to obtain an archaized brick matrix; the archaized brick base body is sequentially subjected to a reaction with 3-aminopropyltrimethoxysilane, 5, 7-dihydroxyflavone, 1H, 1H-perfluorooctylamine and 1, 3-propane sultone, and the concave-convex high-skid-resistance archaized brick is prepared. The concave-convex high-skid-resistance archaized brick prepared by the invention has good antibacterial, antifouling and coating durability effects.

The invention discloses a soil risk assessment method for a red-soil rice field, particularly relates to the field of soil risk assessment, and aims to solve the problems that an existing method cannot accurately identify the hypoxia risk below a plough layer and the influence of the hypoxia risk on a root system. The method comprises the following steps: constructing a joint monitoring mechanism of heat flux and oxygen concentration, extracting metabolic heat release power and an oxygen consumption trend, identifying a reduction dominant region below a plough layer, fitting a space boundary of the reduction dominant region, and establishing a three-dimensional distribution diagram of an oxygen deficit dominant region; the method comprises the following steps: extracting an overlapped space boundary of a root zone and an anoxic zone in combination with a crop root system distribution condition, analyzing a contour expansion rate and a root zone change characteristic in a continuous monitoring time period, and constructing a soil degradation trend identification parameter set; and finally, performing score mapping on the parameter sequence according to a preset degradation judgment weight, generating a soil degradation risk grade map covering the whole red soil rice field region, and having a soil risk expression capability with high spatial resolution and high judgment precision.

The invention belongs to the field of soil environment pollution simulation and prediction, and provides a prediction method based on a two-point chemical unbalanced model, which is used for quantitatively evaluating the effect of regulating and controlling the migration behavior of p-nitrophenol in acid red soil by straw stalk biochar. According to the method, a biochar-red soil composite medium system is constructed, a soil column leaching experiment is carried out to obtain penetration curve data, a two-point chemical unbalance model in CXTFIT software is utilized to carry out parameter inversion, and key parameters such as a retardation factor, a two-region distribution coefficient, a mass transfer coefficient and a liquid phase degradation coefficient are accurately identified. Model verification shows that the goodness of fit is high, and a parameter change rule reveals the inherent mechanism of enhancing the pollutant retention capacity, changing the proportion of fast and slow adsorption sites and influencing mass transfer kinetics by the biochar. Based on the verified model, the long-term migration behavior and pollution risk of p-nitrophenol under different environmental conditions can be simulated, and a scientific basis is provided for groundwater pollution control and remediation strategy optimization.

The invention discloses a multispectral remote sensing-based mountain original red soil nutrient content inversion method and system. Relates to the technical field of soil nutrient monitoring. The method comprises the following steps: step 1, collecting multispectral remote sensing image data of a mountain original red soil area; 2, preprocessing the multispectral remote sensing image data; 3, extracting soil nutrient content data from the preprocessed multispectral remote sensing image; 4, establishing an inversion model of the mountain original red soil nutrient content by adopting an artificial neural network algorithm; and 5, processing the soil nutrient content data by using the inversion model to obtain a soil nutrient content distribution diagram, and evaluating and analyzing the soil nutrient content distribution diagram. According to the inversion model, through combination of unmanned aerial vehicle multispectral remote sensing and an artificial neural network algorithm, the main nutrient content of the mountain original red soil can be efficiently and accurately inverted, a rapid new means is provided for soil nutrient monitoring, and precision agriculture development is assisted.

The invention relates to the technical field of agricultural resources and environment, and particularly discloses a rapid fertilization improvement method for newly-reclaimed red soil dry land. The method systematically integrates the core steps of soil diagnosis aluminum toxicity passivation, composite conditioner deacidification, two-stage deep ploughing, organic and inorganic biological synergistic fertilization, soil moisture content regulation and control, earth surface covering, green manure planting and returning to the field and the like. The applied composition comprises a soil composite conditioner, a charcoal-based organic fertilizer and a specific functional microbial agent, wherein the soil composite conditioner comprises modified oyster shell powder, a calcium magnesium phosphate fertilizer, humic acid, polyglutamic acid and the like. The method relates to key processes such as temperature programming calcination modification of raw materials, co-pyrolysis and composite granulation of the materials and the like. The method can synchronously and quickly improve the chemical and biological properties of soil and optimize the physical structure of a plough layer, and has the advantages of high improvement targeting, synergistic interaction of all steps, high fertilizing speed and lasting effect; in addition, the method has the advantages of being coherent in process, high in resource utilization efficiency and easy to implement on a large scale.

The invention discloses an intelligent stability control method, system and device for a red soil slope, and relates to the technical field of monitoring control, and the method comprises the steps: S1, constructing a multi-scale hydraulic-mechanical coupling model and a special parameter library for red soil; s2, monitoring and collecting data information in real time; s3, the seepage-deformation coupling behavior of the slope and the shearing strength of unsaturated soil are analyzed; s4, dynamically predicting an air inlet value parameter alpha (t) and slope suction evolution, and updating a safety coefficient; s5, predicting seepage and deformation response of the side slope; s6, correcting the parameters of the special parameter library for the red layer soil, and returning to S2; s7, triggering a dynamic control module according to the safety coefficient; s8, adjusting the control measures according to the safety coefficient; s9, an executing mechanism corresponding to the dynamic control module works according to the adjusted control measures, and the step S2 is executed again; according to the method, the slope stability evaluation precision and the control efficiency are remarkably improved, and an efficient, intelligent and sustainable solution is provided for red soil slope disaster prevention and control.

The invention provides an application of a nitrification inhibitor and biochar as a soil conditioner in enhancing drought resistance of plants, a preparation method of the biochar is as follows: moso bamboo stalks are taken as raw materials, pyrolysis is performed for 4-8 hours under an anoxic state of 250-400 DEG C, soil is red soil, and the plant is polygonatum cyrtonema, and an application method comprises the following steps: adding a nitrogen fertilizer into the soil, the addition amount of the nitrification inhibitor is 1% of the content of nitrogen added to the soil, and the addition amount of the biochar is 3% of the mass of the soil. Through combined application of the biochar and the dicyandiamide, the drought resistance of the polygonatum cyrtonema and the benefits of soil microbial communities are remarkably improved.

The invention discloses a red soil dry land soil microbial diversity detection method based on multicolor developing test paper, and belongs to the technical field of soil environment microbial detection. According to the method, test paper loaded with different color developing agents is designed, a specific color developing reaction is triggered by combining microbial metabolic activity, and color developing characteristics are converted into parameters such as microbial diversity indexes and dominant species proportions by utilizing an image analysis model. The detection device comprises an image acquisition module and a data analysis module, and quantitative association of color development features and diversity is realized through a machine learning model. Compared with the prior art, the method has the advantages that the cost is extremely low, the detection time is shortened to be within 30 minutes, the method is suitable for field real-time monitoring of the red soil dry land, an efficient, low-cost and portable detection tool is provided for soil health management, and the method is particularly suitable for soil health assessment of resource-limited areas.

The invention provides a cutting propagation method for dalbergia odorifera. The cutting propagation method comprises a cutting method and a propagation method using the cutting method. The cuttage method comprises the following steps: (1) treatment of cutting slips; (2) soaking: soaking the treated dalbergia odorifera cutting slips in an IBA solution with the concentration of 450-550 mg / L for 25-35 minutes, taking out the dalbergia odorifera cutting slips, and washing lower cuts with water; (3) cutting: cutting the soaked dalbergia odorifera cuttings into a substrate which comprises river sand and red soil in a mass ratio of (2.5-3.5): 1; (4) covering the seedling raising bag after cuttage with a thin film, covering the thin film with a layer of sunshade net, and watering to keep the substrate in the seedling raising bag moist. By using the IBA solution with proper concentration, specific soaking time and specific cutting medium, the cutting survival rate of the dalbergia odorifera can be effectively increased. Further, effective management and control of illumination, humidity and temperature series conditions are combined, so that the dalbergia odorifera cutting seedlings for planting can be efficiently obtained, and the cutting propagation of the dalbergia odorifera is effectively realized.

The application provides an acid soil improvement method, comprising the following steps: step one, measuring soil pH, mixing the soil sample to be measured with carbon dioxide-free water, stirring and standing until precipitation, and then measuring the pH of the supernatant by using a pH meter; step two, determining the amount of the improvement agent, pre-setting the soil pH, and determining the application amount of any one of Ca(OH)2, CaO and CaCO3 according to a calculation formula; and step three, an application method, crushing lime, sieving, uniformly spreading on the surface of soil, and then rotary tilling the soil to fully mix the lime with the soil; the application only needs to measure one index of soil basic pH, and then the required application amount of lime can be obtained by substituting the pre-set target pH into the formula; the application is accurate, scientific, efficient, convenient and economical; and the lime should be applied once every 2-3 years to achieve the purpose of long-term improvement of acidification of red soil.

The utility model discloses a tool for soil teaching in geography, which relates to the technical field of geography teaching appliances, and comprises a soil storage box, a soil experiment box and a soil acidity-alkalinity testing device, the soil experiment box comprises an experiment box body and an experiment box cover, the rear side of the experiment box body is fixedly connected with the front side of the soil storage box, and the experiment box cover is fixedly connected with the soil storage box. The experiment box cover is hinged to the side, away from the soil storage box, of the top of the experiment box body and can be buckled between the top of the experiment box body and the front side of the soil storage box, so that the soil storage box and the soil experiment box are spliced to form a cubic structure, and when the experiment box cover is forwards turned over by 180 degrees, an experiment platform can be formed in the middle of the experiment box cover; the interior of the soil storage box is divided into a plurality of first compartments, the interior of the soil experiment box is divided into a plurality of second compartments, at least five groups of first compartments and second compartments are respectively used for placing green soil, carclazyte, black soil, red soil and loess, and at least one group of first compartment and second compartment is used for placing a soil acid-base property testing device.

The present application relates to the technical field of soil data analysis, and particularly relates to a method for analyzing red soil of a tower base of a power transmission line based on big data, comprising: collecting red soil data of a tower base area of a power transmission line, and sequentially performing cleaning, denoising, filtering and feature extraction operations on the red soil data to output red soil features, training an initial model according to the red soil features to output a deep learning model; using the deep learning model to analyze the red soil data to output an analysis result, determining the fertilizer application of the red soil of the tower base area of the power transmission line according to the analysis result; determining whether the analysis accuracy of the red soil data meets the requirements based on the loss rate of the red soil data; if the analysis accuracy does not meet the requirements, adjusting the collection frequency of the red soil data; and if the analysis reliability does not meet the requirements, adjusting the learning rate of the deep learning model. The present application improves the analysis accuracy of the red soil data.

The invention provides a magnesium modified lignin-based carbon material as well as a preparation method and application thereof, and belongs to the technical field of soil improvement. Lignin is subjected to hydrolytic depolymerization to release active functional groups, a soluble magnesium compound is doped at the same time, and then through high-temperature calcination, the magnesium compound is converted into magnesium oxide to be successfully embedded into the lignin carbon material, so that porous sites of lignin can be improved, and the lignin carbon material can be used for preparing a composite material. And magnesium oxide can be uniformly fixed in the recombinant lignin carbon matrix. When the magnesium-modified lignin-based carbon material is applied to the field, the pH value of soil can be increased, soil salt-based ions can be supplemented in time, and the negative effect on crop growth caused by soil acidification is reduced. The magnesium-modified lignin-based carbon material is applied to tests for relieving urea-driven red soil re-acidification and simulating growth of corn in southern field red soil, and is a feasible and effective strategy for relieving soil acidification and improving the growth environment of crops.

The present application relates to the field of agricultural soil improvement and orchard fertilization technology, and discloses a kind of southern red soil area orchard annual green manure covering and carbon-increasing quality improving method, including that mature livestock and poultry manure is mixed with industrial grade calcium-magnesium phosphate fertilizer and applied to surface soil before green manure sowing;Sowing Indian cowpea in spring, mixed sowing Chinese milk vetch and field radish in autumn;Green manure of leguminous plants is mowed in situ when it is in full bloom to initial pod stage to make it flat;Uniformly spray directional wood-decay fungi complex liquid to the surface of green manure;Use pyroligneous acid to wet crushed dry crop straw, cover micro-acid straw on the surface of green manure;Mechanically subsoil in the following autumn, and inject PAM composite biomass charcoal suspension into the bottom of subsoiling groove simultaneously.The present application neutralizes and intercepts ammonia gas released by green manure to block nitrogen volatilization by using micro-acid straw, accelerates the degradation of macromolecular lignocellulose by using wood-decay fungi, and constructs deep stable carbon sink by combining with deep injection of porous carbon suspension, thereby effectively improving the overall carbon pool capacity of red soil profile.

The present application relates to the technical field of mineral exploitation, and discloses a kind of red soil type bauxite mining area multilayer joint mining mining method, comprising the following steps: step 1: the surface soil layer and weathered rock layer covered to stope roof are once overall stripping, expose the roof of the uppermost ore body, form open-pit mining platform;Step 2: the first sublevel ore body is cut off using millisecond compression blasting, and the first stoping space is formed;Step 3: the first stoping space is used to promote the mining of lower ore body, and multilayer collaborative mining is realized;Step 4: after all sublevel ore bodies are mined to the designed depth, the surrounding rock and residual ore at the bottom of the stope are cleaned up, the waste rock generated during the mining process is backfilled to the mined-out area in layers, and the surface of the stope is covered with a surface soil layer after backfilling is completed.The present application can realize synchronous and collaborative mining of multilayer ore bodies, shorten the overall mining cycle, improve resource recovery rate, reduce mining cost and ensure operation safety.

The invention discloses ammonium-tolerant nitrogen-fixing paenibacillus and application thereof, and belongs to the technical field of agriculture. The bacterial strain is preserved in Guangdong Microbial Culture Collection Center on September 19, 2025, the preservation number is GDMCC 66998, and the bacterial strain is named Paenibacillus sp. By taxonomy. The ammonium-tolerant nitrogen-fixing paenibacillus from the red soil rice field is obtained through screening, the strain still shows high nitrogenase activity under the condition of 80-100 mM NH4 < + >, and the limitation that traditional nitrogen-fixing bacteria are prone to being inhibited by ammonium is broken through. In addition, the strain can significantly improve the germination rate of rice seeds, promote the root length, plant height and biomass accumulation of rice seedlings, and show a good growth promotion effect. Due to the characteristic of forming spores, the strain can also be prepared into a microbial fertilizer preparation which is used for nitrogen fertilizer replacement and synergism in a rice field ecological system.

The application discloses a fertilizer additive combination for improving red paddy soil aggregate and potassium availability and a method for applying the same, and belongs to the technical field of soil improvement and fertilization. The application realizes the improvement of the physicochemical properties of soil by compounding the fertilizer with functional additives and applying the fertilizer in layers and steps. The application has the characteristics of stable improvement effect, wide application range, simple operation, low cost and the like, and is suitable for the comprehensive improvement and sustainable utilization of the physicochemical properties of red paddy soil.

The invention discloses a flora combination for in-situ enrichment of earthworms in soil, a culture medium and application of the flora combination, and the flora combination comprises Cupriavidus necator, a bacterial strain YTR-C1 with the preservation number of CGMCC27358, Sinorhizobium sp., a bacterial strain YTR-S1 with the preservation number of CGMCC20681, Mesorhizobium amorphae and a bacterial strain YTR-M3 with the preservation number of CGMCC17532, and the bacterial strain YTR-C1 with the preservation number of CGMCC27358, Sinorhizobium sp., Sinorhizobium sp., Sinorhizobium sp., Sinorhizobium sp., Sinorhizobium sp., Sinorhizobium sp., the flora composition is preserved in China General Microbiological Culture Collection Center on May 16th, 2023, September 18th, 2020 and April 9th, 2019, the flora composition and the culture medium can increase the number of the far-caffeilus in the red soil, field tests find that the effective phosphorus content and the phosphatase activity in the red soil are remarkably increased by adding the far-caffeilus, and the effective phosphorus content and the phosphatase activity of the red soil are remarkably increased by adding the far-caffeilus. The yield and the quality of the corn and the rape are improved.

The invention belongs to the technical field of plant cultivation, and particularly relates to a cultivation medium for citrus potting and a preparation method thereof. The culture medium for citrus potting comprises the following components in percentage by volume: 20%-30% of sandstone, 25%-35% of humus soil, 15%-25% of red soil, 5%-10% of decomposed mushroom dregs and 10%-20% of volcanic rock. According to the citrus potting culture medium, the gravel, the volcanic rock, the humus soil and the red soil are scientifically proportioned, on one hand, the gravel forms a drainage main channel, volcanic rock micropores adsorb moisture and air, and the humus soil and the red soil form water retention aggregates, so that a rhizosphere environment with high air permeability, water permeability and water and fertilizer retention is created, and accumulated water hardening and rapid water loss are avoided; meanwhile, the red soil stabilizes pH and provides mineral elements, and quick-acting and long-acting nutrient supply is achieved through the decomposed mushroom residues and the humus soil; on the other hand, gravels and volcanic rocks are used as frameworks, humus soil and red soil are used as fillers, the stable structure of the matrix is guaranteed, and oranges are prevented from lodging due to overweight fruit bearing.

The invention discloses a red soil dry land quick-slow double-effect alkaline compound fertilizer and a preparation method thereof, and belongs to the technical field of fertilizers. By adopting a functional modular grading design, the slow-release fertilizer comprises the following components in parts by weight: 35-50 parts of alkaline blocking and controlling granules, 30-45 parts of quick-acting nitrogen phosphorus and potassium granules, 15-25 parts of slow-release nitrogen granules and 3-5 parts of a density adjusting component, the alkaline blocking and controlling particles comprise 20-40 parts of a composite alkaline substance, 1-5 parts of hydroxyl modified zeolite and 2-3 parts of gypsum; wherein the composite alkaline substance is composed of 5-15 parts of limestone powder and 15-25 parts of dolomite powder; the limestone powder is a quick-acting alkaline component, and the dolomite powder is a slow-acting alkaline component. The method has the advantages that long-acting prevention and control of acidification of the red soil dry land are achieved, surface acid is rapidly neutralized through the limestone powder, salt-based ions are supplemented through the dolomite powder in a long-acting mode, and acidification rebound is avoided through adsorption and buffering of the hydroxyl modified zeolite; and secondly, exchangeable A < 1 + > passivation is enhanced, Ca < 2 + > / Mg < 2 + > competes for adsorption sites, hydroxyl zeolite directionally adsorbs free Al < 3 + >, and aluminum toxicity harm is relieved.

The invention discloses a compound microbial agent for improving the yield of red soil peanuts and a preparation method and application thereof, and relates to the technical field of microorganisms, the compound microbial agent is composed of photosynthetic bacteria ISP-1 and burkholderia cepacia ISOP 5, and the mass part ratio of the photosynthetic bacteria ISP-1 to the burkholderia cepacia ISOP 5 is 1: 1. The Burkholderia cepacia ISOP 5 is preserved in the China Center for Type Culture Collection, the preservation number is CCTCC NO: M 2020482, and the Burkholderia cepacia ISOP 5 has high acid resistance and can produce alkali and solubilize phosphorus. The invention not only provides an efficient microbial inoculum product, but also provides a complete solution from soil improvement to plant health care to scientific application, and has great application value for promoting green, high-yield and efficient planting in a red lozenia production area. Wide market development prospects and application and popularization values are realized in the field of peanut planting.

The application discloses a kind of for silt dam prefabricated framework-3D printing homologous composite soil and application, the composite soil is by loess, three-toed horse red soil constitutes soil matrix, sand, straw, geopolymer and biological macromolecular thickening agent are auxiliary material, prepared by using the same soil source.This application realizes material performance complementation by homologous preparation, solves the adaptability problem of silt dam prefabrication and 3D printing material from the root, relies on unique raw material combination and preparation process optimization composite soil comprehensive performance, significantly improves silt dam structure stability and durability.The composite soil can be prepared prefabricated module and 3D printing shell respectively, and the two cooperate with each other, can effectively guarantee the realization of silt dam comprehensive function, is applicable to silt dam prefabricated framework and 3D printing material application scene.

The invention relates to the technical field of red soil improvement, and discloses an organic material recommendation method based on red soil hardening reduction. The method comprises the steps that hardening index data and soil environment parameters of red soil are collected, the hardening index data comprise the soil hardness value and the permeability coefficient, and the soil environment parameters comprise the pH value, the organic matter content and the soil texture. The collected data are integrated to form a comprehensive data set, abnormal values and missing values are removed through quality verification to obtain clean soil data, then a hardening assessment algorithm is used for processing and calculating a hardening reduction priority score, a matching list is retrieved from an organic material knowledge base according to the score, and a matching result is obtained; and finally generating a report containing the recommended material name, the suggested application amount and the application opportunity. The method provides scientific guidance for red soil improvement, realizes accurate recommendation of organic materials, assists in improving the hardening condition of red soil, improves the rationality and benefits of agricultural production, and has important practical value in agricultural scenes in southern red soil regions.

The invention relates to the technical field of durian seedling cultivation, in particular to a large-scale planting method for durian tree northern transplantation in northern latitude 21-24 DEG C. A seedling cultivation matrix is composed of 30% of humus soil, 30% of red soil, 20% of bagasse and 20% of walnut meal, 1% of compound microorganisms are added, the mixture is evenly mixed and then used for durian seedling cultivation, and planting comprises the steps of site selection, in the areas, the altitude is lower than 750 m, the annual average temperature is 22 DEG C or above, the annual accumulated temperature is 7000 DEG C or above, the lowest air temperature in recent 10 years is not lower than 10 DEG C, and the relative air humidity is 75%-85%; according to the method, a whole set of unique cultivation technology is created according to the growth and development attributes of the durian and the three-dimensional environment characteristics of the durian in the northern latitude of 21-24 degrees, large-scale cultivation of multiple areas in Yunnan with the northern latitude of 21-24 degrees is successful, under the technical scheme, the root rot rate of the seedlings is lower than 3%, and the survival rate of the durian is higher than 3%. The survival rate of sapling planting can reach 98% or above, and the survival rate in one year can reach 96% or above.

The invention provides an improved laterite gravel composite material and a preparation method and a construction method thereof, and the preparation method of the improved laterite gravel composite material comprises the following steps: (1) mixing G3-grade natural laterite gravel and 0.075-31.5-grade granite gravel according to a ratio, adding water, and stirring to obtain a mixture; and (2) spraying a modifier into the mixture, and uniformly stirring to obtain the improved laterite gravel composite material. The improved laterite gravel composite material is conveyed to a construction site through a dumper, then a lower bearing layer is prepared, and construction lofting, loose laying, mixing and leveling are conducted, so that pressure leakage and dead angles are avoided, it is ensured that rolling is uniform, and construction is completed. A better CBR bearing capacity index is obtained, the construction technical requirements of highway engineering are met, the cost is low, the filler is compact, easy to compact and high in stability, the segregation phenomenon is reduced, and the application prospect is good.

This invention discloses a red soil composite substrate suitable for the cultivation of *Anoectochilus roxburghii* and its application, belonging to the field of *Anoectochilus roxburghii* cultivation technology. It addresses the limitations of existing technologies, such as difficulty in seed germination, slow growth, and dwindling wild resources, as well as the poor aeration and root rot issues in red soil distribution areas during artificial cultivation. These limitations hinder the large-scale and efficient cultivation of *Anoectochilus roxburghii* in red soil regions. The red soil composite substrate provided by this invention is composed of red soil, peat moss, perlite, and bark mixed in a specific volume ratio, specifically (2-4):1:1:1. Through the synergistic effect of the components, it leverages the water and fertilizer retention properties of red soil while improving its aeration. This scientifically and thoroughly solves the technical problems of "acidic, infertile, and compacted" soil, poor aeration, and root rot in the vast red soil areas of southern China, making red soil a suitable cultivation substrate for *Anoectochilus roxburghii*.

The invention discloses a composite microbial inoculant capable of efficiently degrading sugarcane leaves to produce humus and application of the composite microbial inoculant, and belongs to the technical field of microbial degradation. The composite microbial inoculant for efficiently degrading the sugarcane leaves to produce the humus is prepared from a lignin degrading bacterium (Sporobomyces phaffii) X-3, a cellulose degrading bacterium (Tetradium sp.) Lignocellulan-6 and a phosphorus solubilizing fungus (Trichoderma reesei SIP-2, and the composite microbial inoculant for efficiently degrading the sugarcane leaves to produce the humus is prepared from the following raw materials: the lignin degrading bacterium (Sporobomyces phaffii) X-3, the cellulose degrading bacterium (Tetradium sp.) Lignocellulan-6 and the phosphorus solubilizing fungus (Trichoderma reesei SIP-2; aiming at the soil characteristics of the strong acid red soil and the resource utilization requirement of the sugarcane leaf waste, the functional strains adaptive to the acid environment are screened and optimally combined, so that the rapid decomposition of the sugarcane leaves and the efficient generation of the humus are realized, meanwhile, the contents of rapidly available phosphorus and rapidly available potassium in the soil are remarkably increased, and the pH of the soil is improved; the complex microbial inoculant is simple in preparation process and remarkable in application effect, can effectively relieve the problem of degeneration of a southern red soil ecological system, provides technical support for green development of the sugarcane industry, and has wide application prospects.

This invention discloses an aerial seeding technology for afforestation under natural rainfall conditions, belonging to the field of aerial seeding afforestation technology. The technology includes raw material preparation, raw material processing, granulation, drying, screening, and aerial seeding. The raw material preparation includes: preparation of seed bulb raw materials and preparation of seed raw materials. The seed bulb raw material preparation consists of 30-35 parts red soil, 65-70 parts coconut coir, and 0-5 parts organic substrate by volume. The seed raw material preparation involves selecting six local tree species seeds, including two tree seeds, two shrub seeds, and two grass seeds, based on the local environment. This invention protects the seeds and improves the quality of aerial seeding afforestation and seed germination rate by mixing multiple seeds together to form a seed bulb.

The invention belongs to the technical field of agriculture, and relates to a special-effect soil conditioner for red soil acid plate obstacles of southern red slope cropland as well as a preparation method and application of the special-effect soil conditioner. Comprising the following components in parts by weight: 40-60 parts of oyster shell powder, 15-30 parts of humic acid powder, 5-15 parts of sodium alginate, 3-10 parts of konjaku flour, 3-10 parts of tamarind powder and 1-2 parts of anhydrous calcium chloride. According to the invention, various natural organic polymer materials and natural alkaline mineral materials are compounded, so that the soil conditioner has three significant soil conditioning properties of acid reduction, plate elimination and water retention.