1316results about "Cereal cultivation" patented technology

A high-nutrient and high-activity chemical fertilizer-biological compound fertilizer, and a preparation method and application thereof are provided. The high-nutrient and high-activity chemical fertilizer-biological compound fertilizer includes an inorganic chemical fertilizer and a microbial agent. The chemical fertilizer-biological compound fertilizer has nutrient contents of nitrogen, phosphorus, and potassium of greater than 40% and a viable number of microorganisms of 200 million cfu / g or more. The chemical fertilizer-biological compound fertilizer further includes a microbial protectant, and a mass ratio of the microbial protectant to the microbial agent is ≥1.

The invention discloses a cultivation method for rapid vernalization of winter wheat to accelerate annual iteration, and belongs to the technical field of plant growth regulation and control. The cultivation method comprises the following steps of disinfection and germination, low-temperature vernalization, transplanting and cultivation, and drying and harvesting. The method has the beneficial effects that compared with other current wheat growth acceleration methods, the technical process and the required environment of each stage are simple, and the (semi) winter wheat breeding efficiency is greatly improved. The temperature or photoperiod does not need to be repeatedly adjusted, and vernalization can be performed by adopting short photoperiod / low illumination intensity, so that energy is saved, and the method is environment-friendly and suitable for large-scale popularization. The cultivation method is green, efficient, low in power consumption, low in requirement for environment equipment and simple and convenient. The method is suitable for being used in large-scale plant factories, and meanwhile, a method for rapid vernalization of winter wheat to accelerate annual accelerated iteration of wheat is provided for scientific research institutions, enterprises and public institutions with limited conditions.

The invention provides a special charcoal-based slow-release fertilizer for sandy soil as well as a preparation method and application thereof, and belongs to the technical field of fertilizers. The special charcoal-based slow-release fertilizer for the sandy soil is prepared from amino modified biomass charcoal, urea, urea formaldehyde, monoammonium phosphate, potassium sulfate, polyglutamic acid, fulvic acid, clay, attapulgite, a compound microbial agent and sodium alginate. The compound microbial agent is prepared from halomonas (ACCC 11681), bacillus subtilis (ACCC 60429) and bacillus mucilaginosus (ACCC 10094), and the compound microbial agent is prepared from bacillus subtilis (ACCC 60429) and bacillus mucilaginosus (ACCC 10094). The invention further provides a preparation method and application of the special charcoal-based slow-release fertilizer for the sandy soil. The special charcoal-based slow-release fertilizer for the sandy soil can remarkably improve the water and fertilizer retention capacity of the sandy soil, improve the farmland productivity of the sandy soil, save fertilizer and water input and improve the yield and quality of crops.

The invention belongs to the technical field of plant disease control, and particularly relates to bacillus velezensis and application thereof. The bacillus velezensis strain is separated and screened from rhizosphere soil of wheat in a main wheat area in Hebei Province, the growth characteristics and physiological and biochemical characteristics of the bacterial colony are identified, then 16S rDNA sequencing is carried out, Blast homology comparison is carried out in a GenBank database, the bacterial strain is identified to be bacillus velezensis through the analysis, and the bacillus velezensis strain is identified to be bacillus velezensis. The fungicide containing the bacillus velezensis has a good prevention and treatment effect on wheat stem rot through seed coating.

The invention belongs to the technical field of microorganisms, and provides a growth-promoting P.adami M6 and application thereof, the P.adami M6 is preserved in the China Center for Type Culture Collection, the preservation number is CCTCC No: M20242835, the preservation date is December 18, 2024, the preservation number is CCTCC No: M20242835, the preservation number is CCTCC No: M20242835, the preservation number is CCTCC No: M20242835, and the preservation number is CCTCC No: M20242835. The strain is separated from rhizosphere soil of field planting foxtail millet in the Inner Mongolia red peak area, and is obtained through artificial separation and purification; the strain has the growth promoting characteristics of nitrogen fixation, phosphorus dissolution, IAA production and siderophore production; the M6 fungicide is used for inoculating millet, so that the growth of millet seedlings can be obviously promoted, and the plant height, the root length and the overground part and underground part biomass of the millet are obviously increased; m6 is used as a microbial agent to soak seeds during sowing and irrigate a bacterial liquid once 7 days after sowing, so that the growth effect of millet is best.

The invention provides an interlaced vertical board agriculture and light complementation method. The interlaced vertical board agriculture and light complementation method comprises a vertical rod and a beam or / and a connecting piece; a plurality of photovoltaic panels are laterally fixed on the vertical rods or / and the beams through connecting pieces, so that a photovoltaic vertical board unit is formed; planting spaces for growth of crops or woods or pasture are formed in the row spacing or the spacing of the photovoltaic vertical board units. Stay cables do not need to be used, construction is easy, cost is low, pile foundations are buried shallowly, damage to soil structures and plant root systems can be avoided as much as possible, construction difficulty and cost can be reduced, and complementary benefits of photovoltaic power generation and agricultural production can be improved.

The invention discloses a cultivation method for promoting rapid growth and development of spring wheat, and belongs to the technical field of wheat breeding and cultivation. The cultivation method comprises the following steps: 1, seed pretreatment; 2, field planting and soil culture: transplanting wheat seeds with white buds into a seedling culture hole tray, transferring the seedling culture hole tray into a culture room with a long photoperiod, culturing until the wheat seeds are mature, and harvesting; lED light is adopted in the culture room for illumination; the LED light is blue light, white light or a mixture of red light and blue light according to a light quantum ratio of 3: 1. The method has the beneficial effects that the condition combination of regulating and controlling the light period, the light quality and the light intensity is provided. Through the combination of fixed and widely applicable illumination conditions, the method significantly shortens the growth cycle of the spring wheat. The method has the beneficial effects that the time from seed germination to mature harvesting of the spring wheat is generally 50-60 days, so that 6-7 generations of spring wheat can be harvested in one year. The wheat growth cycle is shortened, the breeding efficiency is remarkably improved, and a solid technical foundation is laid for improvement and cultivation of chassis varieties.

The invention discloses a microbacterium capable of producing siderophores, dissolving potassium, promoting growth and relieving saline-alkali stress of plants and application of the microbacterium. The invention relates to the field of microorganisms, and provides a dendrobium nobile microbacterium, the dendrobium nobile microbacterium is a dendrobium nobile microbacterium, the strain number of the dendrobium nobile microbacterium is 2T1, and the registration number of the dendrobium nobile microbacterium in the China General Microbiological Culture Collection Center is CGMCC No. 32856. The strain is a new strain of microbacterium and has the capabilities of secreting siderophores and dissolving potassium. Pot experiments show that compared with uninoculated control, the root length and dry weight of wheat can be improved after the strain is inoculated under saline-alkali stress. The microbacterium dendrobii 2T1 can be used as a microbial organic fertilizer, and is used for improving the soil fertility, relieving the saline-alkali stress of crops and improving the saline-alkali adaptability of the crops.

The invention discloses a trichoderma virens strain KN-T01, a trichoderma preparation and application of the trichoderma preparation, and belongs to the technical field of biocontrol microbial agents. The invention provides a trichoderma virens strain KN-T01, a trichoderma preparation and application of the trichoderma virens strain KN-T01 and aims to solve the technical problem that a biocontrol microbial agent in the prior art is poor in microbial function effect in a low-temperature environment, the preservation number of the trichoderma virens strain KN-T01 is CCTCC M 20242443, and the trichoderma preparation contains the trichoderma virens strain KN-T01. The trichoderma virens strain KN-T01 and the trichoderma preparation provided by the invention have relatively good low temperature resistance, have relatively good antagonism and hyperparasitism effects on pathogenic bacteria of pepper gray mold and watermelon fusarium wilt, have a good decomposition effect on straws under a low-temperature condition, and have a relatively good promotion effect on growth of tomatoes and corns under a low-temperature condition, so that the trichoderma virens strain KN-T01 and the trichoderma preparation have relatively good application prospects. The trichoderma virens strain KN-T01 and the trichoderma preparation are non-toxic and harmless, and can be applied to agricultural green prevention and control.

The invention relates to the field of environment and agricultural biotechnology, in particular to an application of a composite phosphate-solubilizing bacterial agent in promoting wheat growth, which is characterized in that germinated wheat is cultivated firstly, then the germinated wheat is placed in soil mixed with the composite phosphate-solubilizing bacterial agent to be cultivated, and then the germinated wheat is cultivated in soil mixed with the composite phosphate-solubilizing bacterial agent. Furthermore, the growth of wheat is promoted by the cooperation of enterobacter hormaechei HS6, pantoea agglomerans CT3 and wheat bran in the compound phosphate-solubilizing bacterium agent. Wherein the enterobacter hormaechei HS6 and the pantoea agglomerans CT3 can efficiently convert insoluble phosphorus in the soil into soluble phosphorus, the utilization rate of phosphorus in the soil is effectively increased, the use amount of chemical phosphate fertilizer is reduced, nutritional ingredients are increased for the soil, the physical and chemical properties of the soil are improved, wheat growth can be well promoted, and the application prospect is good.

The invention relates to the technical field of agricultural rotation, in particular to a rotation method of stropharia rugoso-annulata, corn and wheat, which is suitable for medium and original areas, a rotation mode of winter wheat, summer corn, stropharia rugoso-annulata, summer corn, winter wheat, summer corn, stropharia rugoso-annulata and summer corn is adopted, and a rotation cycle is carried out every two years, the straws of the corn and the wheat are used for culturing the stropharia rugoso-annulata, and the mushroom dregs of the stropharia rugoso-annulata are returned to the field in situ as a fertilizer; according to the method, crop rotation of the stropharia rugoso-annulata, the corn and the wheat is conducted in the mode that one crop of stropharia rugoso-annulata is planted every other year, the influence on the land is close to that of planting the stropharia rugoso-annulata every year, straw produced by the land can be fully utilized, extra investment is reduced, the risk of farmers is reduced, and popularization and implementation are facilitated.

The invention discloses a light and simplified corn nitrogen fertilizer dosage recommendation method based on a nitrogen balance standard, and relates to the technical field of agricultural resource environment. According to the corn nitrogen fertilizer dosage recommendation method based on the nitrogen balance standard, the nitrogen fertilizer dosage can be recommended only by knowing the corn yield and the soil fertility grade, the surplus of nitrogen in soil can be reduced to the maximum extent on the basis of ensuring the crop yield, the environmental loss of active nitrogen is further reduced, and the crop yield is improved. Therefore, high-yield, high-efficiency, sustainable and healthy development of agriculture is promoted.

The invention belongs to the technical field of rhizosphere microorganisms, and provides a strain of saline-alkali tolerant rhizosphere growth promoting serratia marcescens and application of the strain of saline-alkali tolerant rhizosphere growth promoting serratia marcescens in growth promoting and repairing of saline-alkali soil. The strain not only grows fast, but also has growth promoting functions such as nitrogen fixation, phosphorus solubilization and potassium solubilization. The strain is preserved in the China General Microbiological Culture Collection Center on March 11, 2025, called CGMCC for short, the address is No.3, Yard 1, Beichen West Road, Chaoyang District, Beijing, and the biological preservation number of the strain is CGMCC NO.33793. The SP-38 strain has multiple growth promoting functions, and through salt stress water culture tests and in-situ saline-alkali soil pot tests of corn, the strain has good effects in the aspects of improving the crop yield and repairing saline-alkali soil.

The invention discloses a biocontrol complex microbial inoculant for preventing and treating maize curvularia leaf spot and application thereof, and belongs to the field of crop disease prevention and treatment. The biocontrol complex microbial inoculant comprises the following active ingredients: bacillus cereus, pseudomonas chlororaphis and streptomyces microflavus, and / or metabolites thereof. The beneficial microorganisms with different action mechanisms are combined, and the prevention and control effect on the curvularia maize leaf spot disease is enhanced through the synergistic effect. Natural microbial resources are adopted to replace traditional chemical pesticides, harmful substance residues are reduced, and the ecological environment is protected. Through reasonable matching of different types of beneficial microorganisms, effective prevention and control of the curvularia maize leaf spot disease are realized, and healthy growth of plants can be promoted. Compared with a single strain preparation, the complex microbial inoculant provided by the invention has stronger stability and durability, and can significantly reduce the incidence rate of diseases.

The invention provides application of a pseudomonas parabarium YC15 strain in efficient prevention and treatment of wheat stem rot and various pathogenic bacteria. The invention provides a new application of the pseudomonas parabarium YC15 strain in prevention and control of plant diseases, and research shows that the YC15 strain has broad-spectrum bacteriostatic activity, has remarkable inhibitory activity on various plant pathogenic bacteria, can inhibit pathogenic fungi such as wheat stem rot, sesame root rot and colletotrichum gloeosporioides, and has a wide application prospect in prevention and control of plant diseases. And the compound has a relatively good inhibition effect on pathogenic bacteria, namely sesames pseudomonas solanacearum. The YC15 strain is applied to prevention and control of wheat stem rot, and pot experiments show that after the YC15 strain is adopted for treatment, plant lesions can be reduced, the inhibition effect of pathogenic bacteria on plants can be broken, the pathogenic bacteria can be effectively inhibited, plant growth can be promoted, and the wheat stem rot can be efficiently prevented and controlled. The invention provides new application of the YC15 strain, and the YC15 strain can be used for preventing and treating various plant protobacteria and diseases thereof, and has good development and application potential as a biocontrol bacterium.

The invention discloses a planting method for improving corn yield based on chemical control agent regulation, and belongs to the technical field of corn planting, and the method comprises the following steps: S1, collecting real-time data of corn planting growth state; s2, cleaning and normalizing the real-time data of the corn planting and growing state; s3, integrating and storing the standardized real-time data of the corn planting and growing state; s4, analyzing the real-time data of the corn planting growth state, and determining a corn planting growth stage analysis result; and S5, formulating a corn planting chemical control agent application scheme, and carrying out automatic adjustment and real-time tracking on the chemical control agent according to different corn planting growth stages. The problems that in the prior art, the application condition of a chemical control agent cannot be adjusted in the corn planting process, the growth state of corn cannot be adapted, and the corn yield is low are solved. According to the method, the application condition of the chemical control agent can be adjusted in the corn planting process, the growth state of corn can be well adapted, and the corn yield can be increased.

The invention discloses a special compound microbial fertilizer for corn and a preparation method, and relates to the technical field of special fertilizers for crops. The organic fertilizer is prepared from the following components in parts by weight: 15-20 parts of a microbial agent, 8-10 parts of charcoal, 20-25 parts of decomposed sheep manure, 8-10 parts of biogas residues, 5-8 parts of humic acid, 5-10 parts of monoammonium phosphate, 10-15 parts of urea, 8-12 parts of potassium chloride, 1-1.5 parts of boric acid, 1-2 parts of zinc amino acid chelate, 0.5-1 part of lipopeptide surfactin and 3-5 parts of diatomite. The four strains of bacillus amyloliquefaciens, azospirillum, bacillus subtilis and streptomycete are inoculated according to a proportion and are subjected to shake culture for 36 hours under the conditions that the temperature is 30 DEG C and the rotating speed is 180 rpm, the viable count reaches 2 * 10 CFU / mL, the four strains are co-cultured to reduce process steps, the nitrogen-fixing bacteria reduce the use amount of urea by 15%, the streptomycete improves the nematode inhibition rate by 40%, and meanwhile the culture cost is saved.

The invention belongs to the technical field of crop planting, and discloses a Yellow River Delta winter wheat salt-tolerant variety screening and cultivated land quality improving method, which comprises the following steps: step 1, indoor culture test, namely influence of different salinity concentrations on winter wheat budding, step 2, field positioning test, and step 3, field positioning test. The invention relates to screening of salt-resistant suitable-growth high-yield varieties of winter wheat in mild saline-alkali cultivated land, and influences of organic materials with different carbon sources on soil quality and crop yield. According to the invention, the physiological status and agronomic traits of the current Yellow River Delta slight saline-alkali soil winter wheat variety in different growth periods are explored, and a theoretical basis is provided for screening the salt-resistant, suitable-to-grow and high-yield winter wheat variety; the influence of different carbon source materials on the physicochemical properties of the saline-alkali soil is analyzed, the microbial enhancement action mechanism in the saline-alkali soil is explored, 4-5 salt-tolerant winter wheat varieties are screened for the theoretical basis for improving the quality and productivity of the saline-alkali soil of the Yellow River delta, the physicochemical properties of the saline-alkali soil are improved, and the soil microbial community structure and diversity are enhanced.

The invention discloses a method for preparing a fertilizer special for spring corn crops under straw returning, and belongs to the technical field of corn planting. According to the method, soil nutrient testing and the yield increasing effect of fertilization on crops are combined, and the nutrient supply level of soil is truly reflected; the habitual fertilization of farmers is optimized under the condition of comprehensively considering the nutrients brought in by the straws of previous crops, the nutrient release rate and the nutrient effectiveness of the straws, the relatively high carbon-nitrogen ratio under straw returning, and the apparent balance of phosphorus and potassium in the soil of a producing area. Compared with traditional farmer habitual fertilization, the optimized recommended fertilization formula provided by the invention not only contains previous crop straw nutrients, but also provides a special fertilizer formula for a main growth stage. The formula of the special crop fertilizer for the spring corn planting system under straw returning not only can improve the yield of crops, but also can improve the utilization efficiency of nutrients.

The invention discloses a complex microbial inoculant suitable for salt tolerance and growth promotion of corn and application of the complex microbial inoculant. The complex microbial inoculant is prepared from seven strains including gordonia lyophorae, microbacterium amyloliquefaciens, pseudomonas stutzeri, brevibacterium foodstuff, xanthomonas aeruginosa, South China sea bacillus and brevibacterium epidermidis, and has the remarkable characteristics of no antagonism among the strains, salt and alkali tolerance, high viable count and the like; the plant thickness, the ear thickness and the yield of the corn can be obviously promoted, and the empty stalk rate can be well reduced. The protein content, catalase activity, peroxidase activity, superoxide dismutase activity and total chlorophyll content of the plant under the salt stress condition are remarkably improved compared with those of a control group; meanwhile, the content of malonaldehyde and the content of proline are remarkably reduced, and it is indicated that the complex microbial inoculant plays a role in promoting and protecting corn in the process of resisting saline-alkali stress.

The invention discloses an organic fertilizer for planting local cereal crops in a plateau region and a preparation method thereof, and belongs to the technical field of agricultural planting. The organic fertilizer for planting local cereal crops in the plateau region is prepared from the following preparation raw materials: decomposed animal waste, vermiculite, humic acid, citric acid, fish meal, bone meal, straw, cake meal and a compound microbial agent, the carrier is prepared from decomposed animal waste, vermiculite, humic acid and citric acid, so that the mechanical strength and durability of the carrier can be improved, and a good physical state can be kept in the storage, transportation and use processes; through compound use of bacillus licheniformis, bacillus subtilis and bacillus laterosporus and adjustment of the dosage ratio of all strains and the viable count of the compound microbial agent, the soil micro-ecological environment can be improved, breeding of beneficial microorganisms in soil is promoted, growth of harmful bacteria is inhibited, and the soil fertility and the water and fertilizer retention capacity are improved; the fertilizer has a good promotion effect on the growth of spring wheat, oat and other plateau cereal crops.

The invention relates to the technical field of agricultural micro-ecological application, and particularly discloses a composite combined inoculation method using arbuscular mycorrhizal fungi and plant growth-promoting rhizobacteria, which comprises the following steps: selecting corn plant seeds without plant diseases and insect pests; a corn planting land is randomly divided into land parcels with the area of 6 m < 2 > (2 m * 3 m), a buffer zone of 1.0 m is arranged between every two adjacent land parcels, and the cultivation mode is flat cropping; the method comprises the following steps: planting arbuscular mycorrhizal fungi inoculum comprising mycorrhiza, dry sand containing spores and ectotrophic hyphae and corn seeds in soil by using a seeder during corn sowing, and after the corn is planted for 30 days, inoculating the plant growth-promoting rhizobacteria inoculum into plants and soil by using a flood irrigation root irrigation method, when the arbuscular mycorrhizal fungi and the plant growth-promoting rhizobacteria are inoculated together, the corn rhizosphere microbial community can be changed, the richness and diversity of fungi and bacterial communities in soil are increased, and the relative abundance of plant pathogens in the soil is reduced.

The invention discloses a method for preparing a liquid fertilizer and improving crop yield by using tylosin waste liquid, and belongs to the technical field of agricultural waste resource utilization, and the method comprises the following steps: S1, preparing a novel liquid fertilizer: mixing the tylosin waste liquid with an antibiotic degradation agent for reaction, centrifuging, and collecting supernatant; adding nutrient substances and a mixed bacterial agent into the centrifugate for fermentation treatment, and filtering to obtain filtrate, namely the novel liquid fertilizer; s2, taking crop seeds, and soaking the crop seeds in a soaking solution before planting; s3, in the seed bud stage and the seedling stage, leaf surface spraying is conducted; wherein the antibiotic degradation agent is prepared by reacting modified silicon dioxide with sulfhydrylated sodium carboxymethyl cellulose. According to the method, resource utilization of the tylosin waste liquid is achieved, environmental pollution and use of chemical fertilizers are reduced, the agricultural production cost is reduced, and an effective way is provided for agricultural sustainable development.

A measurement system including: a. a sensor system that includes: i. a Light Detection And Ranging (LiDAR) module with a laser emitter configured to generate measurement data representing raw range measurements to measure heights of a crop, and ii. a computing module, including: at least one wireline / wired communications module configured to communicate with the LiDAR module for the computing module to acquire the measurement data from the LiDAR module; and at least one wireless communications module configured for the computing module to communicate using a wireless connection / link with a remote computing system that is configured receive the acquired measurement data and to determine / calculate / estimate phenotypic quantities of the crop based on the measured heights for the purpose of high-throughput plant phenotyping (HTPP); and b. a mobile / vehicle mount configured to hold / support the sensor system above the crop and to direct the laser emitter towards the crop.

The invention relates to the field of agricultural planting, in particular to a corn-soybean strip-shaped composite planting method in southern Shaanxi district, which comprises the following steps: S1, variety screening and matching: screening varieties with compact plant type, high yield, high quality, disease resistance and stress resistance for corn varieties; the soybean variety is selected, wherein the yield per mu of the soybean variety is increased by 20 kg or above compared with the contrast, and the soybean variety is matched with the corn variety in the growth period and complementary with the corn variety in plant type; s2, whole-course mechanical operation is adopted, and a 3.6.3 m + 4 strip-shaped jade bean composite planting mode is constructed; three rows of corns and four rows of soybeans form a unit planting belt, the total width of the unit planting belt is 3.6 m, the row spacing of the corns is 60 cm, the row spacing of the soybeans is 40 cm, and the distance between the corns and the soybean belt is 60 cm. Compared with a 2: 3 mode mainly promoted in the whole city, the yield of corn is increased by 11 kg / mu, the yield of soybeans is increased by 15 kg / mu, the benefit is increased by 112 yuan / mu, and the comprehensive efficiency is increased by 412 yuan / mu.

The invention relates to the technical field of soil fertilization, in particular to a plain area dry farmland thick and fertile plough layer construction and productivity improvement method which comprises the following steps: in the first year, after corn is harvested, smashing straws, turning and burying the straws and returning the straws to the field, and in the next year, performing soil preparation and sowing by adopting flat-planting wide-narrow-row planting or ridge-planting uniform-row planting; in the second year, after the corn is harvested, the whole straw or smashed straw covers and returns to the field, straw row-collecting no-tillage sowing is carried out in the next year, and flat-cropping wide-narrow row planting is adopted for sowing; in the third year, after the corn is harvested, the whole straw or smashed straw covers and returns to the field, straw row-collecting no-tillage sowing is carried out in the next year, and flat-cropping wide-narrow row planting is adopted for sowing. Through the implementation of the technical method, the thickness of a plough layer of the dry farmland in the plain area is increased by 13-15 cm, the nitrogen fertilizer utilization rate is increased by 10%-15%, and the soil fertility level is increased by 0.5-1 grade.

The invention relates to the technical field of agricultural agents, in particular to application of trans-2-hexenal as a weed germination inhibitor. It is found for the first time that trans-2-hexenal has an inhibition effect on wheat field gramineous weed germination under a certain concentration, and then application of trans-2-hexenal as a weed germination inhibitor is provided. The invention provides a better application mode of the trans-2-hexenal in the soil, and defines a wheat sowing safety interval after the trans-2-hexenal is applied. Therefore, the trans-2-hexenal can be used for reducing the grassy weed seed bank in the wheat field soil, the occurrence of wheat field weeds is controlled from the source, the green prevention and control of wheat field weeds are realized, and the use of chemical herbicides is reduced.

The invention provides a coal gangue-based soil matrix as well as a preparation method and application thereof, and belongs to the technical field of ecological restoration. According to the invention, the coal gangue with continuous gradation is adopted, so that the coal gangue-based soil matrix has the particle size distribution of natural soil; urea is added to adjust the carbon-nitrogen ratio of the coal gangue and the biomass waste, and a microbial agent is added for pre-curing, so that the microbial activity is improved, complete decomposition of organic matters is promoted, and formation of water-stable aggregates is promoted; multi-layer root plants are planted together and inoculated with fungi, formation of water-stable aggregates is promoted through root interpenetration and a hypha network, meanwhile, the nutrient circulation efficiency is improved together with root exudates and microbial metabolism, and nutrient release is more balanced. Through multi-dimensional symbiotic regulation and control, the coal gangue-based soil matrix has particle size distribution of natural soil, nutrient balance, high water-stable aggregate content and organic matter content, and is more beneficial to ecological restoration.

The invention discloses a comprehensive prevention and control method for tobacco root knot nematode disease containing a biological agent. The method comprises the steps of crop rotation of tobacco and buckwheat / quinoa, host resistance induction of the microbial agent in the seedling raising period, tobacco planting soil quality improvement in the transplanting period and the like. The agronomic characters of tobacco seedlings are effectively improved, and the physical characters of soil are improved; the chemical properties of soil pH, alkali-hydrolyzable nitrogen, available phosphorus, quick-acting potassium, exchangeable calcium, exchangeable magnesium and the like are improved; the activity of soil urease, sucrase, acid phosphatase, catalase and peroxidase is improved; the content of water-soluble phenols, compound phenols and total phenols in soil is reduced; the disease index of the tobacco root knot nematode disease can be remarkably reduced, the survival rate of tobacco is increased, the application amount of chemical agents is reduced, and the healthy and sustainable development of the tobacco industry is promoted.

The invention belongs to the technical field of plant cultivation, and particularly relates to a corn close planting chemical control yield increasing method based on drip irrigation under mulch, four density levels and three planting specifications are set, influences of the density levels and the planting specifications on corn population source library characteristics, physiological growth, yield and quality are researched, and the optimal density and planting specification for improving the yield and quality are screened out. Three chemical control agents of ethephon, mepiquat chloride and chlormequat chloride are selected, three application gradients are set, the influence of the chemical control agents on the growth and yield of the corn is observed, and the appropriate type and dosage of the chemical control agents are determined. A split region design is adopted, a quantitative relation between water and nitrogen management and corn growth is researched, a water and nitrogen coupling effect is defined, a chemical regulation and control scheme for densification and lodging resistance under a close planting condition is provided, and the corn productivity is improved.