199 results about "Crop rotation" patented technology

The invention provides an intelligent irrigation control method and system for a high-standard farmland. The method comprises the following steps: acquiring crop canopy image data and farmland terrain elevation data of different crop planting areas in the high-standard farmland; determining a crop growth stage based on morphological characteristic data in the crop canopy image data, and constructing a soil hydrodynamic simulation model according to a root distribution depth interval and a theoretical water absorption rate coefficient corresponding to the crop growth stage; and based on the farmland terrain elevation data and the soil porosity parameter, generating a soil moisture migration parameter by using a soil hydrodynamic simulation model, generating a pipe network pressure regulation and control instruction in combination with the soil moisture migration parameter and a preset irrigation strategy, and adjusting the water outlet pressure distribution of the intelligent irrigation pipe network according to the pipe network pressure regulation and control instruction. Generating an irrigation control instruction; accurate space-time matching of irrigation of the multi-crop rotation area is achieved, the water utilization efficiency is improved, and the problem of irrigation uniformity at the terrain difference and the rotation boundary is solved.

The invention provides an initial construction land parcel detection method fusing remote sensing time-space spectrum characteristics, which comprises the following steps: carrying out wave band operation on different time phase remote sensing images by utilizing a land cleaning land parcel detector, and realizing primary screening detection on potential change land parcels based on spectral characteristic variation caused by land cleaning; a double-branch deep convolutional neural network of a convolutional neural network based on an object-scene is used for extracting double spatial features, a pseudo-change region caused by farming activities and vegetation phenological changes is eliminated through decision-making level fusion of feature spaces, and finally high-precision initial development plot pattern spots of the construction land are output. According to the invention, the spatial features of the target object and the scene thereof can be synchronously extracted by using the double-branch deep network, and high-precision detection of the initial development plot of the construction land is realized; according to the method, high-precision extraction of the initial development plot of the construction land is realized, the problem of false detection caused by crop rotation and vegetation phenological change is solved, and the accuracy and reliability of a detection result are remarkably improved.

The invention belongs to the technical field of microorganisms, and particularly relates to pseudomonas monteilii BDLZ-3 and application thereof in relieving continuous cropping obstacles of crops. The invention discloses a strain of pseudomonas monteilii BDLZ-3, the preservation number of which is CGMCC (China General Microbiological Culture Collection Center) No.34349. The pseudomonas monteilii BDLZ-3 is separated and screened from the nature for the first time, phenolic acid autotoxic substances generated in the ginseng continuous cropping obstacle process can be efficiently degraded, the degradation rate of benzoic acid can reach 95.36%, various phenolic acids such as vanillic acid, cinnamic acid, palmitic acid and gallic acid can be effectively degraded, and the degradation spectrum is wide; when the pseudomonas monteilii BDLZ-3 is applied in a field, the content of benzoic acid in soil can be effectively reduced, meanwhile, the occurrence of ginseng root diseases can be controlled to a certain extent, the prevention and treatment effect reaches 41.23%, the growth indexes such as root length and root thickness are remarkably improved, and the yield increasing effect is achieved.

The invention relates to the technical field of greenhouse vegetable planting environment regulation and control, in particular to an internet-based intelligent greenhouse vegetable environment regulation and control system and method, which comprises an acquisition module, a monitoring module, an analysis module, a decision module, an execution control module and a mobile terminal interaction module, in combination with a preset successive cropping obstacle threshold model, analyzing to obtain the soil secondary salinization degree, the nutritional imbalance state, the microflora disorder index and the allelochemical toxicity grade; and the decision module is used for generating a comprehensive regulation and control strategy including crop rotation suggestions, irrigation amount, a fertilization scheme, biological control measures and environmental parameter regulation instructions in combination with facility vegetable types and growth stage requirements. A continuous cropping obstacle analysis result is obtained through the analysis module in combination with big data and a machine learning algorithm, a comprehensive regulation and control strategy is generated, continuous cropping obstacles are effectively dealt with, and the planting efficiency and the vegetable quality are improved.

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 discloses a green three-dimensional planting system for promoting agricultural economic development in an arid region. The green three-dimensional planting system comprises a climate adaptation module; the weather prediction module is responsible for providing weather change prediction; the crop selection and crop rotation module is responsible for selecting suitable drought-enduring crops and implementing scientific crop rotation; the three-dimensional planting structure module is responsible for designing a reasonable three-dimensional planting framework according to the selected drought-enduring crops; the soil improvement module is responsible for adding an organic fertilizer and a modifier and improving the soil moisture retention capability; according to the invention, through weather prediction information provided by the climate adaptation module, the system can predictively adjust an irrigation strategy, and insufficient or excessive irrigation caused by sudden weather change is avoided. The intelligent irrigation module is combined with a neural network algorithm, the irrigation amount and time are accurately calculated and automatically adjusted according to the real-time meteorological data, the drought-enduring crop characteristics, the three-dimensional planting architecture and the soil improvement condition, accurate control over irrigation is achieved, and the utilization efficiency of water resources is remarkably improved.

The invention provides a regional soil quality improvement method based on a crop rotation mode, and relates to the technical field of soil quality optimization, and the method comprises the following steps: S1, establishment of the crop rotation mode: establishing a crop rotation system with leguminous forage grass and gramineous crops as cores in a target area, the leguminous forage grass being medicago sativa, the gramineous crops being corn, and the gramineous crops being corn; a carousel or intercropping mode is adopted, the carousel mode is a period of 2-3 years, alfalfa is planted in the first year to the second year, and corn is planted in the third year; according to the intercropping mode, the corn and the alfalfa are planted according to the row ratio of 2: 1-3: 1, the row spacing of the corn ranges from 60 cm to 70 cm, and the row spacing of the alfalfa ranges from 30 cm to 35 cm. According to the method, alternate sowing and intercropping of the medicago sativa and the corn are combined, symbiotic nitrogen fixation of rhizobium of the medicago sativa and absorption of deep potassium by deep root systems are utilized, surface nutrients are utilized in cooperation with shallow root systems of the corn, a layered nutrient utilization mechanism of shallow nitrogen fixation and deep potassium release is formed, and compared with a traditional single cropping mode, the soil improvement quality is improved; the problems of regional surface soil nitrogen loss and low deep nutrient utilization rate are solved.

The invention belongs to the technical field of desert agricultural engineering, and discloses a method for planting winter wheat in desert land, which comprises the following steps: S1, land pretreatment; s2, an intelligent drip irrigation system; s3, constructing a composite water retention layer; s4, finely leveling the ground; s5, accurate sowing; s6, secondary wheat cultivation; s7, performing no-tillage continuous planting; and S8, crop rotation period management. By the adoption of the laser leveling instrument and the intelligent drip irrigation system, efficient leveling and precise irrigation of the land are achieved, the labor cost and the operation difficulty are reduced, the water retention capacity of the soil is further improved through construction of the composite water retention layer, and the irrigation frequency and the water consumption are reduced. The accurate sowing and secondary wheat cultivation technology ensures uniform distribution and healthy growth of wheat seeds, and improves the emergence rate and the survival rate. By means of the no-tillage continuous planting technology, the soil turning frequency is reduced, the soil structure is protected, development of wheat root systems and nutrient absorption are promoted, and then the yield of wheat is increased.

The invention relates to the technical field of soil pollution monitoring, and discloses a farmland soil heavy metal ecological risk assessment method and system, and the system comprises a multi-source collaborative collection module, a dynamic risk assessment module, a climate-driven correction module and a risk prediction execution module. A multi-dimensional dynamic parameter set is generated by constructing a soil-crop-microorganism collaborative collection mechanism, and systematicness and integrity of pollution data are guaranteed; meanwhile, based on heavy metal spatial distribution modeling, a three-dimensional pollution pattern is analyzed in real time, and a combination mode of deep migration risk and table enrichment characteristics is identified, so that the system can overcome the defect of insufficient sampling depth in the prior art, the accuracy of pollution source identification and risk boundary is improved, and the reliability of an evaluation result is enhanced. A dual-drive model is constructed by fusing historical climate parameters and rotation parameters, and risk early warning and prevention strategy dynamic adjustment in a climate sudden change scene are realized.

The invention discloses a soil organic matter digital mapping method and device based on crop rotation historical change, and the method comprises the steps: bringing crop rotation interannual change and crop rotation change frequency into an environment variable set, and carrying out the screening and combination with other environment covariables; the historical crop rotation change and the long-term frequency thereof are brought into the environment variable set, and the environment variable set is enriched, so that the influence of human activities on soil spatial-temporal heterogeneity is considered in soil organic matter prediction, and the precision of model prediction is improved. By utilizing the method, the influence of historical agricultural practice can be reflected, and the spatial heterogeneity of the farmland soil organic matters can be better described, so that the performance of a soil organic matter spatial prediction model is improved.

The invention provides a ginger planting method for preventing and treating ginger bacterial wilt, and belongs to the technical field of ginger planting.According to the ginger planting method, through crop rotation, a ginger bacterial wilt pathogenic bacterium host chain is effectively cut off, ralstonia solanacearum is inhibited, harmful pathogenic bacteria in soil are removed through sun exposure, a biochar-probiotic mixture is applied, and meanwhile the harmful pathogenic bacteria in the soil are inhibited; biochar is utilized to increase porosity and water-holding capacity, relieve the problem of soil hardening, increase the pH value of soil, increase the content of alkaline cations, effectively inhibit growth of pathogenic bacteria of ginger blast, and also adsorb and retain nutrients such as ammonium and potassium through static electricity, and the pore structure of the biochar provides a shelter for probiotic groups, so that the probiotic groups are planted in the soil, and the soil quality is improved. The living space of the ginger blast pathogenic bacteria is inhibited; seed gingers are soaked in bacterium liquid containing bacteriophages, ginger blast pathogenic bacteria are effectively inhibited, drip irrigation is adopted for later-period management to maintain soil humidity, reproduction and spreading of the ginger blast pathogenic bacteria are effectively prevented and controlled, charcoal base fertilizer is additionally applied, and finally ginger blast is effectively prevented and controlled.

The invention discloses microbial combined bacteria and a method for improving fertility of newly-cultivated land. The method comprises the following steps: combining every two of bacillus amyloliquefaciens WK1, white rot fungi NDM3-2 and trichoderma helichum HJR7 to form three combined bacteria; the three combined bacteria are applied to soil containing straw and lentinus edodes residues respectively, and a pot experiment (rice and white clover crop rotation) for two years is carried out with no addition of any bacteria as a contrast; analyzing the physical and chemical properties of the soil and the microbiological indexes of the soil; and according to an analysis result, the combination of the white rot fungi NDM3-2 and the trichoderma helichum HJR7 is confirmed to be an ideal scheme for improving the fertility of the newly-cultivated land.

The invention discloses a corn and peanut intercropping interannual rotation minimal tillage-free planting method, and belongs to the technical field of agricultural planting. The method specifically comprises the steps that sowing is conducted in a strip mode, and strip-shaped intercropping planting is achieved; the corn row spacing L1 and the peanut row spacing L2 are both 40cm, and the distance L3 between adjacent corn and peanut is 80cm (corresponding to the local conventional ridge spacing of 50cm) or 120cm (corresponding to the local conventional ridge spacing of 60cm); during harvesting, peanuts are harvested firstly, corn is harvested after the peanuts are picked, the stubble height H of the harvested corn is 25-35 cm, and the harvested corn straw covers the ground surface of a peanut strip in a staggered mode to prevent wind erosion; corn stubbles and corn straw coverage are alternately arranged; in spring of the next year, the corn planting belt and the peanut planting belt are subjected to crop rotation, corn is directly subjected to no-tillage sowing, peanuts are subjected to shallow-rotary-tillage and minimal-rotary-tillage sowing, and the rotary tillage width and depth are both 8-10 cm; in the following years, corn and peanut belt intercropping and interannual crop rotation are carried out. The agricultural operation feasibility is guaranteed while the agricultural regulation is met, and deep integration of the agricultural machinery and the agricultural technology is achieved.

The invention relates to a multifunctional seeder suitable for farmland and a working method thereof.The multifunctional seeder comprises mounting racks, an adjusting cross beam and seeding mechanisms, the mounting racks are mounted at the two ends of the adjusting cross beam respectively, the mounting racks are connected with a tractor, and the multiple seeding mechanisms are mounted on the adjusting cross beam at equal intervals; the seeding mechanism comprises a sliding frame arranged on the adjusting cross beam in a sleeving mode, side blocking frames are symmetrically installed on the bottom side of the sliding frame, a rotating cylinder is installed between the two side blocking frames through a bearing, and a plurality of first seed suction hole sets are formed in the two sides of the rotating cylinder at equal intervals; each first seed suction hole group comprises a first large seed suction hole, a first middle seed suction hole and a first small seed suction hole which are arranged at equal intervals; through three innovations of graded suction hole dynamic matching, pneumatic-electric cooperative reseeding and modular line spacing adjustment, the problems that an existing seeding machine is poor in adaptability, low in precision, insufficient in efficiency and the like are solved, and the seeder is particularly suitable for a large-scale farm multi-crop rotation scene.

The invention discloses a three-season cultivation method for intercropping fresh corn with green soy beans and crop rotation of vegetables, relates to the field of agricultural planting, and aims to solve the problems that an existing planting method cannot fully utilize the characteristics of the fresh corn to achieve the yield increasing target and the planting income of the fresh corn is limited. The method comprises the following steps: 1, land selection: selecting fertile, flat and well-drained soil for planting; 2, corn seed selection: selecting a suitable fresh corn variety according to climate conditions of a planting area; 3, planting two seasons of fresh corn in one year, and intercropping green soy beans while planting the fresh corn; fourthly, after the fresh corn is harvested, ploughing, soil preparation and ridging are conducted, and then winter vegetables are planted; 5, performing field management and pest control. According to the method, the growth characteristic that the fresh corn is short in growth cycle is fully utilized, two-season fresh corn can be planted in one year, the planting income of the fresh corn is increased, and the fresh corn is promoted to meet marketization requirements.

The invention belongs to the technical field of crop seedling raising methods, and particularly discloses a root growth promoting agent suitable for rooting of sliced ginger, a ginger slicing seedling raising method and application. According to the method disclosed by the invention, before ginger planting, a root growth promoting agent is used, the root growth promoting agent comprises a 200-fold diluted solution of naphthalene B sodium nitrate, a 500-fold diluted solution of a microbial agent polyglutamic acid, a 500-fold diluted solution of plant rooting powder and a 10000-fold diluted solution of mepiquat chloride, and the four components realize synergistic interaction, so that the comprehensive indexes of the aboveground part of the ginger cut-block seedling, the plant growth amount and the seedling root system are optimal. According to the method, intensive early seedling raising is achieved through dicing, the ginger field planting time is shortened by more than 50 days, and crop rotation is facilitated; seedlings are neat and consistent, the root activity is high, the field survival rate and mechanical operation of the seedlings are improved, and the labor efficiency is improved. The technical method is simple, the production cost is low, the seedling rate is high, and direct economic benefits are embodied in production.

The invention discloses a cultivation method for fruiting stropharia rugoso-annulata fruiting bodies without covering soil. The cultivation method comprises the following steps: 1) preparing a fruiting culture material; 2) primary composting fermentation; 3) secondary turning fermentation; 4) performing secondary fermentation in a greenhouse; (5) spreading materials; (6) sowing; 7) spawn running; 8) bud pressing; 9) cultivating mushrooms; and 10) harvesting. And 11) tide turning management. According to the method, the cotton residues, the sawdust, the rice chaff, the corncob, the rice straw, the wheat bran and the lime are adopted to form the fruiting culture material, and a cultivation method of fruiting without earthing is combined, so that the working procedures of excavating, disinfecting, covering and the like of an earthing material are reduced, meanwhile, the quality of sporocarp is improved, the high-quality mushroom rate is improved to 72.2% from 35.3% of field cultivation, the cleanliness of the sporocarp is improved to 92.5% from 20.3%, and the yield of the sporocarp is improved. Meanwhile, cotton residues and rice straw are effectively utilized, economic and ecological benefits are remarkable, after the first flush of mushrooms is harvested, holes are punched in the bed surface, water is sprayed on the bed surface, the humidity of compost is effectively supplemented, and high-quality sporocarps can be produced all the year round.

The invention discloses an intelligent monitoring, prevention and control system for tobacco brown spot, and relates to the technical field of agricultural disease monitoring and intelligent prevention and control. A lower canopy monitoring array, elevation thermal infrared and red edge near infrared imaging and spore sampling (fluorescent quantitative PCR / loop-mediated isothermal amplification) are used as inputs; fog drop deposition D, leaf surface water film W and spore concentration S are predicted through multi-modal alignment and a physical field generator; carrying out long sequence risk assessment by inputting a correlation state space model and superposing a liquid state self-correlation kernel, and carrying out long sequence risk assessment by using concentric wheel patterns and narrow yellow halo (rlt; 0.15) + near-infrared / short-wave infrared black mould layer triple discrimination and checking, and a prescription is formed by combining double-pulse triggering that leaf surface wetting is larger than or equal to 8 h or a spore index reaches a threshold. The prescription comprises night microclimate intervention, variable spraying and leaf thinning control; resistance rotation compliance is realized through prescription uplink pre-check and electronic control unit unlocking; based on row belt / Thiessen polygon scheduling, 36 h coverage is larger than or equal to 95%, the dosage and residues are reduced, and the hit rate and timeliness are improved.

The invention provides a crop rotation planting zoning method based on Arc-GIS and meteorological factors. The method comprises the steps of data collection, data processing, spatial analysis, suitability evaluation, visual output and continuous monitoring and updating. Meteorological data comprises a plurality of factors such as air temperature, day and night temperature difference, effective accumulated temperature, active accumulated temperature and precipitation, unary linear regression analysis is carried out through analytical statistics software, and interpolation is carried out through a Kriging interpolation method by utilizing Arc-GIS software, so that a surface element vector data graph of meteorological factors suitable for the growth period of crops is obtained. And crop planting regions are obtained through spatial analysis, and finally, the planting regions are classified according to crop suitability and visual output is carried out. The invention provides a scientific and systematic crop rotation planting zoning method.

The invention provides a method for planting spring corn in a dry sloping field, and belongs to the technical field of agriculture. According to the technical system, through a three-level combination scheme of structural water storage, process regulation and control and systematic rotation, the transformation of dry-farming corn production from passive drought resistance to active water transfer is realized. Compared with a traditional mode, ineffective rainfall is converted into water available for root systems through deep scarification water storage and furrow rainwater collection; the resource waste is reduced by dynamic supplementary irrigation and slow-release fertilization, and a'small-amount and multiple-time 'supply rule of the semi-arid region is met; the crop rotation system remarkably improves the system stability through leguminous crop nitrogen fixation and corn high-light-effect complementation. According to the embodiment of the invention, the technical system provided by the invention realizes the breakthrough of 689.36 kg / mu of spring corn yield and 2.38 kg / m < 3 > of water utilization efficiency in the loess plateau semi-arid region, and provides a reproducible technical normal form for the arid region with annual rainfall of 400-500mm.

A combined seeder for full straw mulching condition operation includes a frame, where a seeding and fertilizing mechanism is arranged above the frame, a pre-sowing pressing mechanism is arranged below the frame, a mechanical transmission mechanism is arranged in the middle of the frame, the two ends of the mechanical transmission mechanism are respectively connected with the furrowing mechanism and the vertical rotary tillage mechanism, the vertical rotary tillage mechanism is arranged in front of the frame, and the furrowing mechanism and a seeding profiling mechanism are arranged behind the frame. Th combined seeder for full straw mulching condition operation can complete the strip vertical rotation, crushed soil leveling, side deep fertilization, pre-sowing suppression, strip monomer profiling sowing in clean areas, and other processes in one operation under the full straw mulching condition, which greatly improves the operation efficiency and alleviates the problem of the tension of crop rotation.

The invention relates to the technical field of aquaculture and ecological environment management, and discloses a novel pond ecological circulation culture method which comprises the steps that a pond is divided into four vertical functional areas including an upper-layer floating bed planting area, a middle-layer net cage culture area, a bottom-layer benthic purification area and a microbial conversion area, a water circulation system is arranged in a matched mode, the area needed by pond site selection is 3000-4000 m, and the water depth is 3.0-3.5 m. The water quality is automatically controlled through a sensor containing dissolved oxygen and the like, and the biological monitoring module is automatically controlled through a high-definition camera and an AI to acquire data in real time, trigger oxygenation, move the net cage and the like; mixed feeding of'basal feed and insect protein ', cross-season crop rotation of floating bed crops and batch harvesting of benthic organisms are performed daily, equipment is maintained regularly, and ecological circulating breeding is achieved.

A cultivation and breeding method for crop rotation of Stropharia rugosoannulata and return of mushroom residue to the field in a rice-fish co-culture system, comprising: constructing fish pits in a paddy field, planting open-field Stropharia rugosoannulata in the paddy field during a winter fallow period of double-season rice, and simultaneously continuing to culture Procypris merus in the fish pits; and after harvesting the Stropharia rugosoannulata, directly returning mushroom residue to the field. In the described method, the rotation of rice and mushroom combined with the return of mushroom residue to the field can reduce rice diseases in the rice-fish co-culture system, decrease the yield-reducing effect of fish on rice, and increase the yields of rice and fish. The co-culture of Procypris merus can alleviate the problem of aggravated rice sheath blight caused by the return of mushroom residue to the field. Moreover, only one-time application of base fertilizer is required, which reduces the complexity and labor intensity of later management.

According to the method, chewing cane ditching planting is adopted, the depth of chewing cane planting ditches is 20-45 cm, fresh corn is planted on ridge surfaces on the two sides of the planting ditches after chewing cane planting is conducted for 10-15 days, chewing cane-corn root system dislocation growth is achieved, root system antagonism between gramineous plants is avoided, ecological niche complementation is achieved, and the yield of the chewing cane is increased. The effective nutrient absorption space of crops is increased. After fresh corn ears and straws are harvested and sold, soil in a planting area is dug in time, furrows close to chewing cane planting rows are ridged to prevent falling, and the positions of ridges and furrows are interchanged. Position-changing rotation of the chewing cane and the fresh-eating corn every year is achieved, namely rotation of the fresh-eating corn is conducted in an original chewing cane planting area, and rotation of the chewing cane is conducted in an original fresh-eating corn planting area. Therefore, two planting modes of crop rotation and relay intercropping are combined, land resources are efficiently utilized, continuous cropping obstacles are avoided, the land output is increased, the land production cost is reduced, and good harvest of the chewing cane and the fresh corn is achieved.

The invention discloses a cultivation method for improving acidic soil of a greenhouse vegetable base based on rotation of morchella esculenta, and belongs to the technical field of soil improvement. The method comprises the following steps: (1) selecting an acidification test plot of long-term continuous cropping vegetables, and detecting soil pH, conductivity, water-soluble salt and anion and cation concentration; (2) preparing a morchella sextelata strain and culturing the morchella sextelata strain until the inoculation bag is full of hyphae; (3) spreading strains on the surface of soil, and managing fruiting after earthing; and (4) after harvesting morchella esculenta, detecting soil indexes, and evaluating the acidification improvement effect. According to the method, the soil pH value is remarkably increased through rotation of the morchella esculenta, the conductivity and the water-soluble salt content are reduced, the anion-cation balance is adjusted, the soil acidification problem caused by long-term continuous cropping of a greenhouse vegetable base is relieved, and meanwhile the land utilization economic value is increased.

The invention discloses a soil improvement method, and relates to the technical field of soil improvement. Comprising the following steps: spraying a soil water-retaining agent on the surface of to-be-improved soil, performing powder ridge cultivation, and performing mixed ridging; biogas liquid is introduced into the ridged soil for irrigation, and after standing, irrigated soil is obtained; digging a plurality of pre-buried pits in the irrigation soil, and burying breathable net pipes in the plurality of pre-buried pits; moss mixtures are injected into the breathable net pipes, then soil backfilling is conducted on the multiple pre-buried pits, and loose soil is obtained; after the loose soil is subjected to watering maintenance, the breathable net pipes are taken out, and maintained soil is obtained; and applying a modified charcoal fertilizer to the surface of the maintained soil, ploughing and uniformly mixing, planting leguminous crops, carrying out rotary tillage into the soil after cutting and harvesting, and planting in a manner of crop rotation of different crops, thereby completing the improvement of the soil. According to the improvement method, the porosity and permeability of the hardened soil can be effectively improved, and the water and fertilizer retention capacity of the soil is improved, so that soil hardening is effectively relieved, and the soil fertility is recovered.

The invention discloses a method for improving the quality of cultivated land through mixed sowing of perennial beans, grasses and forage grass. The method comprises the steps that deep ploughing and soil turning are conducted, land leveling is conducted, and organic fertilizer is applied to serve as base fertilizer; the method comprises the following steps: determining a mixing ratio of leguminous forage grass to gramineous forage grass of 3: 7-1: 1, and carrying out mixing pretreatment on the two forage grass seeds, namely preparing a nano titanium dioxide solution containing various nutrients and trace elements, screening stress-resistant domesticated rhizobium, disinfecting, soaking, coating and the like; reasonably topdressing in the forage grass growth period; when the pasture grows to a specific stage, the pasture is cut for 2-3 times every year; after 3-5 years of continuous utilization, crop rotation is carried out, and deep ploughing and fertilization are carried out again. According to the seed mixing pretreatment mode, the operation process is simplified, the cost is reduced, balanced nutrition supply is guaranteed, synchronous germination of seeds and coordinated growth of seedlings are promoted, and the fertilizer utilization rate is increased. The screened adversity-resistant domesticated rhizobium enhances the stress resistance of mixed sowing grassland, improves the yield and quality of alfalfa, and further improves the overall quality of mixed sowing pasture.

The invention relates to the technical field of urban ecological engineering, in particular to a parking lot authigenic plant planting method based on carbon immobilization. The invention provides a parking lot authigenic plant planting method based on carbon immobilization, which is characterized in that a three-stage ecological rotation mechanism is introduced into vegetation construction according to the sequence of a pioneer plant period, a green manure turning and pressing soil returning period and an authigenic plant community succession period to form a parking lot authigenic plant pool, and the parking lot authigenic plant planting based on carbon immobilization is realized. The invention aims to improve the greening ecological benefit and carbon sink capacity of the parking lot by optimizing the soil structure and adopting the crop rotation technology, provides a plant pool structure which adapts to the environment of the parking lot, has high-carbon solid storage capacity and can realize autonomous ecological circulation, and improves the soil health, inhibits diseases and prolongs the plant coverage period through the crop rotation technology. The problems that traditional parking lot greening depends on manual intervention, and the carbon sink benefit is low are solved, and continuous carbon sink under the low maintenance cost is achieved.

The invention belongs to the technical field of crop cultivation, and particularly relates to a mechanical planting method for winter wheat-summer corn annual rotation shallow-buried micro-spraying belts. According to the planting method, two rows of winter wheat form a seedling strip, a row of blank strips are reserved between every two adjacent seedling strips, a micro-spraying irrigation system is laid when the winter wheat is planted, micro-spraying strips are shallowly buried in the blank strips synchronously along with wheat sowing, summer corn is planted in the blank strips after the winter wheat is harvested, and the micro-spraying irrigation system is recycled after the summer corn is harvested. A shallow-buried micro-spraying planting mode based on agricultural machinery and agricultural technology fusion and suitable for winter wheat-summer corn crop rotation production is established, compared with a traditional planting method, annual yield increase is achieved, meanwhile, manpower and material resources are saved, advantages are shown in actual production, and important practical significance and practical value are achieved.

The invention discloses a preparation method and an application method of straw wet biochar for carbon sequestration and emission reduction in rice and wheat rotation. The preparation method comprises the specific steps of preparation and application of the straw wet biochar. The preparation method of the straw wet biochar comprises the steps of raw material preparation, low-temperature combustion, normal-temperature slow oxidation, electromagnetic radiation treatment, microwave heating and light wave sterilization, filtration and freezing and cold storage treatment. The method is mainly used for improving straw resource utilization of a rice and wheat system. The preparation process is low in energy consumption and little in smoke dust, carbon volatilization in the straw is reduced, and the content of fixed carbon in the straw is greatly increased. According to the specific application, the compound fertilizer is mixed with fertilizer according to a certain weight ratio of the compound fertilizer to plough layer rice soil and then applied at a time during rice planting. Wherein the nitrogen fertilizer is a mixture of quick-acting urea nitrogen and slow-release urea nitrogen, and the phosphate fertilizer and the potash fertilizer are conventional fertilizers. The fertilizer can promote the increase of gaps in rice soil and the water retention of wheat soil, reduces the emission of N2O, CO2 and CH4 in the rice and wheat planting process after being applied, improves the organic carbon content of soil, reduces the emission of greenhouse gas carbon (CO2), and promotes the increase of the crop rotation yield of rice and wheat.