102 results about "Crop rotation" patented technology

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 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 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 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.

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.

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 relates to the field of agricultural biotechnology and plant protection, and particularly provides application of 2-heptanone to preparation of a preparation for preventing and treating plant diseases. The bactericidal composition has a strong bacteriostatic effect on litchi colletotrichum gloeosporioides, strawberry colletotrichum gloeosporioides, mango leaf blight, pawpaw colletotrichum gloeosporioides, wheat gibberellic disease, mango colletotrichum gloeosporioides, tomato fusarium wilt, banana fusarium wilt, banana colletotrichum gloeosporioides and corn root rot. The fumigant developed on the basis of 2-heptanone and used for preventing and treating phytopathogen is expected to be used for preventing and treating compound diseases caused by various pathogenic bacteria, or comprehensively preventing and controlling different crop diseases in a crop rotation system, and has important development value.

The invention provides a crop rotation yield prediction method and device based on a neural network, and the method comprises the steps: constructing an input feature set representing the multi-dimensional features of a crop rotation system through fusing current and historical environment data, a crop rotation sequence and attribute information; complex space-time correlation features are extracted from the feature set through a time sequence and space convolution layer, and a depth feature tensor is formed; introducing a farming node-based time attention mechanism to carry out weighted reconstruction on the tensor so as to focus on the key growth stage; calculating an initial yield through a regression prediction layer; and finally, performing data fusion on the initial prediction and the historical yield information, and outputting a final crop rotation yield prediction value, so that the accuracy of crop rotation yield prediction can be effectively improved.

The present application relates to the field of crop cultivation and soil improvement technology, and discloses a wheat-corn-sunflower-legume green manure crop rotation carbon fixation and water saving method suitable for arid irrigation areas, which comprises wheat planting, corn planting, sunflower planting and legume green manure planting. The present application replaces traditional flooding irrigation with high-frequency low-amount drip irrigation mode, combines with precise water supply according to the water requirement characteristics of each crop growth period, and avoids invalid irrigation. Meanwhile, through straw returning to field, soil water evaporation is reduced, and soil conservation capacity is improved. Moreover, the present application constructs a double carbon fixation path of straw returning to field and green manure turning, straw is crushed and returned to field, organic carbon is input into soil every year, legume green manure is turned and decomposed, and soil organic matter content is improved. The present application also reduces nitrogen fertilizer application through symbiotic nitrogen fixation of legume green manure and rhizobium, protects soil microbial activity, optimizes soil carbon cycle, relieves soil degradation, and improves long-term carbon fixation potential of soil.

A multi-objective optimization method for crop planting considering fuzzy uncertainty includes the following steps: Step 1: Obtain historical data; Step 2: Construct a corresponding fuzzy parameter set based on the historical data; Step 3: Describe the planting area of ​​various crops on different plots as variables, and construct the expression relationship between their total planting area and total yield; Step 4: Construct a fuzzy multi-objective optimization model for crop planting based on the fuzzy parameter set; Step 5: Introduce plot area constraints, crop suitability constraints, crop rotation constraints, and minimum planting area constraints into the fuzzy multi-objective optimization model; Step 6: Obtain the clarified multi-objective optimization model; Step 7: Obtain a Pareto optimal planting scheme set; Step 8: Select the target planting scheme from the Pareto optimal planting scheme set and output the planting area configuration results of various crops on different plots. This invention can obtain a planting method that better conforms to actual production conditions.

This invention provides a two-stage cultivation method for Ophiopogon japonicus, belonging to the field of Ophiopogon japonicus planting technology. The two-stage cultivation method includes the following steps: dividing the planting field into a paddy field and an Ophiopogon japonicus seedling field, and planting rice and Ophiopogon japonicus seedlings together in the paddy field and the Ophiopogon japonicus seedling field respectively; after the rice harvest, planting the Ophiopogon japonicus seedlings in the planting field. This invention enables crop rotation of Ophiopogon japonicus and rice within the same planting field within one year, ensuring Ophiopogon japonicus production while increasing rice production for one season, solving the problem of competition for land between medicinal and grain crops, thus protecting both medicinal and grain crops. Compared with traditional cultivation methods, the cultivation method of this invention significantly improves indicators such as leaf length, root number, number of fruit roots per plant, fresh weight of stems and leaves, fresh weight of roots, fresh weight of Ophiopogon japonicus per plant, and yield per acre. The two-stage cultivation method of this invention results in high Ophiopogon japonicus yield and low cost, while also increasing rice production. Therefore, the net benefit of the two-stage cultivation method of this invention is far higher than that of traditional cultivation methods.

The invention relates to the field of watermelon planting, in particular to a watermelon rotation planting device and method.The watermelon rotation planting device comprises a rack, a vine processing mechanism, a sowing mechanism, a soil covering mechanism and a driving mechanism are arranged on the rack, and the vine processing mechanism is used for collecting and smashing vines; the driving mechanism is used for driving the device to advance; the driving mechanism is further used for driving the vine processing mechanism to operate synchronously, and then the vines are collected and smashed in the advancing process. The sowing mechanism is arranged behind the vine processing mechanism, and the sowing mechanism is used for sowing crop seeds adaptive to crop rotation into the land; the soil covering mechanism is arranged on the rear side of the seeding mechanism; the driving mechanism is also used for driving the soil covering mechanism to synchronously operate; and the soil covering mechanism is used for carrying out soil covering treatment on the sown seed furrows. Through power output of the driving mechanism, all the mechanisms operate synchronously and coordinately, the soil structure is improved, a good foundation is provided for growth of subsequent crop rotation crops, and the sustainability of agricultural production is enhanced.

The invention relates to the technical field of agricultural instruments, in particular to a rotary tillage fertilization and straw returning integrated device which comprises a top plate, a hanging seat, a front baffle, a rear baffle, a discharging mechanism and a rotary tillage mechanism, the top plate is connected with a tractor through a connecting frame, and the discharging mechanism is communicated with a discharging opening of the top plate and used for storing and discharging a mixture of fertilizer and smashed straw; the rotary tillage mechanism comprises a rotary drum, a rotary tillage assembly, a diameter changing mechanism and two driving assemblies, the diameter changing mechanism drives a transmission column to move through a special-shaped cam structure of a driving disc, so that a mounting batten moves in a reciprocating mode in the radial direction of the rotary drum, and dynamic adjustment of the rotary tillage depth is achieved. The device integrates rotary tillage, fertilization and straw returning, breaks through plow pan barriers with fixed tilling depth, forms a compound fertilizer force layer structure, realizes layered and uniform mixing of mixed materials, is adaptive to different crops and crop rotation requirements, is low in energy consumption and high in efficiency, and solves the problems of poor adaptability, non-uniform fertility and high operation cost of a traditional device.

This invention discloses an efficient cultivation method for crop rotation of mung beans and Chinese cabbage. The method includes: (1) treating spring mung beans with seed priming one week before sowing, sowing in late March, harvesting in early June, and returning the straw to the field after crushing; (2) sowing seedling Chinese cabbage in mid-June and harvesting in late July; (3) sowing summer mung beans in late July and harvesting in early October, and returning the straw to the field after crushing; (4) sowing Chinese cabbage in mid-September for seedling cultivation, transplanting in mid-October, and maturing in late December. This invention adopts a scientific and reasonable crop rotation model, which can achieve four crops and four harvests a year, significantly improving land utilization. By planting mung beans for nitrogen fixation and returning straw to the field, soil fertility is improved, and the amount of fertilizer used for vegetable cultivation is reduced. By combining the planting of miscellaneous grains with vegetable cultivation, food security and vegetable supply are ensured, achieving significant economic, social, and ecological benefits.

The application belongs to the technical field of green plant protection cultivation, and discloses a standardized planting and management method for pollution-free green agricultural products, which realizes multi-index screening of soil heavy metals, pesticide residues, microorganisms and water, soil and air, establishes a soil plant protection database, and applies passivation materials, compound beneficial microorganism groups and decomposed organic fertilizers to the soil according to pollution, continuous cropping and short soil fertility, and improves the stress resistance of seedlings by matching seed pretreatment; the disease and pest risk grades of plots are divided by weighting and quantifying five types of planting data, and a risk map is drawn, high, medium and low risk plots are differentially configured with pest-resistant varieties, intercropping, crop rotation and pest-repellent crops, and a hierarchical prepared prevention and control mechanism is matched, the planting environment is optimized from the aspects of farmland basement and field ecological layout; through the fusion of the Internet of Things, unmanned aerial vehicle remote sensing, pest trapping and meteorological data, the early latent characteristics of diseases and pests are captured through a deep learning model, and the development trend of diseases and pests is deduced in advance and divided into three levels of early warning.

The present application relates to fertilizer crushing technical field, specifically proposes a kind of crop wheel action organic fertilizer production raw material crushing device, including rack, roll shaft and the driving part of driving roll shaft rotation, two roll shafts are installed in the inside of rack by axial mechanism, two roll shafts can independently move along its axial direction;The present application is by setting the roll shaft of axial movement and linkage type material box, with "roll shaft axial movement" this one core action, ensure that the discharge port can be real-time, automatically accurately aligned with the current coincidence area of double roll, eliminate the segregation of discharge from the root, in the process that roll shaft is mutually staggered and moves, strong axial shear force is generated between two roll surfaces, can efficiently scrape the material adhered on the roll surface of opposite party, realize on-line self-cleaning without shutdown, simultaneously change the main work area of roll surface actively and plannedly by mode switching, make wear evenly distributed, avoid the generation of "concave roll", system integration is high, and degree of automation is strong.

The invention relates to a broccoli early rice rotation analysis method and system based on multi-source data fusion, electronic equipment and a computer readable storage medium, and the method comprises the steps: obtaining multi-source data of a target field area, and carrying out the preprocessing, positioning and calibration of a field multi-view image and soil PH value detection data; and generating a soil PH value thermodynamic diagram through spatial superposition fusion and an interpolation algorithm. On the basis, a PH stress area is identified, and spatial consistency analysis is carried out on the PH stress area and a chlorophyll content diagram obtained through multispectral image inversion, so that the health degree of the crop root system is evaluated. Then, a growth model with the soil PH value, the root system health degree and the multispectral and thermal infrared image features as input is established, and key parameters such as the plant nitrogen content, the leaf area index and the water stress index are quantitatively inverted by means of the predefined PH-root system-canopy physiological response relation. And finally, quantitative analysis of economic, ecological and agronomic benefits is carried out based on inversion parameters, and a comprehensive crop rotation benefit report is generated.

The invention provides a crop rotation method for camelina sativa, and belongs to the technical field of agricultural planting. A planting area is divided into an area A and an area B; in the first year, spring sowing is conducted from late March to early April, camelina sativa is planted in the area A, and sunflowers are planted in the area B; autumn sowing is conducted from the middle ten days of September to the last ten days of September, sunflowers are planted in the area A, and camelina sativa is planted in the area In the second year, spring sowing is conducted from late March to early April, camelina sativa is planted in the region B, and sunflowers are planted in the region A; autumn sowing is conducted from the middle ten days of September to the last ten days of September, camelina sativa is planted in the area A, and sunflowers are planted in the area In the third year, spring sowing is conducted from the first ten days of June to the last ten days of June, and soybeans are planted in the area A and the area B; autumn sowing is conducted from the middle ten days of September to the last ten days of September, camelina sativa is planted in the area A, and sunflowers are planted in the area Crop rotation crops are scientifically matched, the problems of soil nutrient imbalance and pathogenic bacterium accumulation caused by continuous cropping of the camelina sativa are avoided, the soil microenvironment where the camelina sativa grows is improved, and the camelina sativa yield is increased.

The invention discloses a dictyophora indusiata and lyophyllum decastes collaborative high-yield cultivation method based on a rotation mode, which comprises the following steps: S1, variety selection: selecting a dictyophora indusiata variety D1 and a lyophyllum decastes variety AASM6292 for rotation; s2, site selection: selecting a site which is close to a water source, convenient to drain and irrigate and fertile in land, and building a shady shed when the dictyophora indusiata is cultivated; s3, sowing bamboo fungus in February to March of solar calendar, and fruiting in May to September; s4, after the bamboo fungus is harvested, cleaning the field, scattering lime for disinfection, ditching and discharging the lotus leaf lyophyllum commune fungus sticks; s5, removing bags, arranging furrows and planting lyophyllum decastes in September of solar calendar, and fruiting from October to February of the next year. Compared with the prior art, the crop rotation mode-based dictyophora indusiata and lyophyllum decastes collaborative high-yield cultivation method has the advantages that complementary varieties are carefully selected, and the sowing and fruiting time is reasonably arranged by utilizing the difference of the growth temperatures of the dictyophora indusiata and lyophyllum decastes.

The present invention belongs to the technical field of planting. Disclosed is a method for maize-flue-cured tobacco crop rotation with double intercropping of pea / barley. In the method for maize-flue-cured tobacco crop rotation with double intercropping of pea / barley of the present invention, a specific planting pattern for the crop rotation is "flue-cured tobacco-intercropped pea-intercropped barley-rotated maize-intercropped pea- rotated barley-flue-cured tobacco". The symbiotic period of the double intercropped crops in this pattern reaches 70d, and a multiple cropping index of cultivated land is increased to "six harvests in two years", leading to a substantial increase in economic benefits. Moreover, this pattern can effectively reduce the occurrence of continuous cropping obstacles in cash crops such as flue-cured tobacco and peas, and thus is a "grain-tobacco-cash crop coordinated development pattern" that enables sustainable and efficient production. The economic benefits are greatly improved. In addition, pea seedlings are applied to attract migrating tobacco aphids, which reduces aphid infestations and prevents the occurrence of climatic spot disease and tobacco brown spot in upper tobacco leaves caused by excessive nutrient absorption in the late growth stage of flue-cured tobacco.

The invention discloses a farmland biodiversity assessment method and system based on comprehensive management, and the method comprises the steps: obtaining a grid field based on ownership registration and morphology, collecting the soil type and crop variety basic attributes of the grid field, and recording management measures; calculating a biological sensitivity coefficient and a rotation cooperation coefficient, and calculating a fertilization amount, an irrigation water amount and spatial and temporal distribution characteristics through the grid field to obtain a water and fertilizer spatial and temporal index; investigating various microhabitats by adopting a farmland functional habitat nested sampling algorithm to obtain biodiversity detection data, and constructing a multiple regression model according to the quantitative management measure indexes and the biodiversity detection data; a synergistic effect correction coefficient is obtained based on cross validation of spatial neighborhood constraints and farmland habitat residual analysis iterative optimization, the benefit and harm direction is judged based on the synergistic effect correction coefficient, and benefit and harm grades are divided according to crop yield data and a yield threshold value; and analyzing the influence of benefit and harm levels on yield and cost through a thermodynamic diagram and a benefit diagram to obtain diversity comprehensive evaluation.

The invention provides a'rice + 'rotation farmland methane emission inhibitor as well as a preparation method and application thereof, and belongs to the technical field of environmental protection, in particular to the preparation method of the'rice +' rotation farmland methane emission inhibitor, which comprises the following steps: S1, recycling a used spontaneous heating patch, taking out contents, and grinding the contents into powder; s2, performing ultrasonic water washing on the powder obtained in the step S1 to remove salt and impurities; s3, soaking the washed powder in the step S2 by using a hydrogen peroxide solution to obtain an oxidized material; and S4, grinding the oxidized material obtained in the step S3 to obtain the methane emission inhibitor. The methane emission inhibitor provided by the invention can effectively reduce the greenhouse gas emission of rice + crop rotation soil, is simple in preparation method and low in raw material cost, and has a great application prospect.

The invention relates to the technical field of soil improvement methods, and discloses a clayey soil improvement method which comprises the following stages: S1-S4. Through a synergistic improvement mode, the content of organic matters in the soil is increased, the content of heavy metals in the soil is reduced, the hardening rebound rate is reduced, meanwhile, the pH value of the soil is adjusted to a suitable range of 6.0-7.5, and the comprehensive improvement effect is remarkable; meanwhile, contour line operation, multi-ditch drainage, straw covering and the like are arranged, so that the device can adapt to mountainous and hilly terrains and rainy and high-humidity climate in the southwest, and water and soil loss and modifier loss are effectively prevented; ecological materials such as bamboo fibers, earthworms and straws are adopted, so that the dosage of chemical reagents is greatly reduced, secondary pollution is avoided, and adverse effects are reduced after leaching agent residues are subjected to drainage and biodegradation; an improved closed loop is formed through later measures such as crop rotation, regular compensation and improvement, permeability maintenance and the like, rebounding after short-term effectiveness is avoided, and the improvement effect is effectively prolonged.

The invention discloses an evaluation method for farmland carbon sink datum line measurement and extra argumentation, and relates to the technical field of agricultural environment monitoring management, and the method comprises the steps: building a regional attribute knowledge graph based on the multi-source heterogeneous data of a target farmland region, including soil, climate and crop rotation history; a carbon sequestration potential model is trained in combination with a knowledge graph and a reinforcement learning algorithm, and a farmland carbon sink datum line with regional adaptability is generated; and deploying an intelligent sensing system and an edge computing device in the target farmland area. According to the method, the dynamically updated regional attribute knowledge graph is constructed by fusing multi-source heterogeneous data, multi-dimensional information such as soil, climate, crop rotation and management records is effectively integrated, a structured farmland ecosystem knowledge base is formed, incremental updating can be automatically triggered according to real-time monitoring data and external events, and the real-time monitoring effect of the farmland ecosystem knowledge base is improved. And it is ensured that the datum line modeling and evaluation process is always based on the latest area state.

The invention belongs to the field of agricultural planting, and particularly discloses a strawberry and rice rotation cultivation method suitable for a facility greenhouse, which comprises the following steps: S1, planting strawberry seedlings in the greenhouse from the last ten-day of August to the first ten-day of September every year until harvesting is finished at the end of April in the next year; s2, after strawberry harvesting and greenhouse cleaning, directly planting a water-saving and drought-resistant rice variety of which the whole growth period is less than or equal to 95 days in the same greenhouse from May 10th to May 25th, and completing rice harvesting from the middle ten days of August to the end of August; s3, after the rice is harvested, land preparation is performed for strawberry field planting in the next round; according to the method, water-saving and drought-resistant rice varieties which are extremely short in whole growth period and resistant to high temperature are selected, crop rotation connection is accurately arranged, and the traditional land idle period about four months after strawberry harvesting is successfully converted into a complete rice production season; therefore, one-year-one-ripening of the same land is changed into one-year-two-ripening of strawberry-rice, the multiple cropping index is doubled, and the annual output and utilization efficiency of unit land area are greatly improved.

The invention discloses a comprehensive prevention and control method for tobacco pepper vein mottle virus disease, which comprises the following steps: S1, optimizing agricultural layout and preparing a field parcel: selecting an area far away from a vegetable field, a curing barn and an airing shed as a seedling raising and planting field, removing weeds in the seedling raising and planting field, then intercropping gramineous crops, and deeply ploughing and sunning upturned soil before winter; s2, prevention and control management in a seedling raising period: detecting pathogens, preventing and controlling diseases and pests, and managing, cleaning and disinfecting facilities; the application not only pays attention to reasonable use of pesticides, but also combines physical prevention and control (such as covering an insect-proof net), biological prevention and control and agricultural management (such as crop rotation and weed removal) to form a comprehensive prevention and control system; the virus resistance of the tobacco can be effectively improved, and meanwhile, the influence on the environment is reduced; aphidius avenae is used for biological control, biological insecticides (such as sophocarpidine and azadirachtin) are released to be alternately used with chemical agents, natural enemies are effectively utilized for pest control, and use of the chemical agents is reduced.

The invention discloses a soil heavy metal remediation method based on indigenous plant-microorganism-charcoal synergy, and belongs to the technical field of soil remediation. The soil heavy metal remediation method comprises the following steps that S1, a heavy metal polluted land parcel is selected, and the variety and content of heavy metal in the land parcel are analyzed; s2, selecting crop rotation plants according to heavy metal pollution conditions; s3, preparing an activated carbon-functional microbial agent; s4, cleaning the heavy metal polluted land parcel, applying an activated carbon-functional microbial agent, and ploughing; s5, sowing seeds of the selected plants, and performing field management, harvesting and crop rotation. A'indigenous plant-functional microorganism-modified charcoal 'synergistic remediation system is constructed, through efficient synergism of targeted plant rotation, acid modified charcoal fixation and compound microorganism activation, the total amount and the effective state content of various heavy metals in soil can be remarkably reduced, meanwhile, the physical and chemical properties of the soil are improved, and the soil remediation effect is improved. And efficient, green and sustainable treatment of the heavy metal contaminated soil is achieved.