157 results about "Crop rotation" patented technology

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 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 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.

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 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 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.

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.

The invention discloses an oilseed rape-sorghum-autumn cucumber planting method based on cooperation of oilseed rape and vegetables, and the method comprises the following steps: sowing oilseed rape in late September; in late October, when the oilseed rape grows to 3-5 leaves, transplanting the oilseed rape to a field; sowing sorghum in the middle ten days of March of the next year; in early April of the next year, when sorghum grows to a three-leaf stage, transplanting; in the middle ten days of April of the next year, harvesting oilseed rape, and then threshing; in late July of the next year, harvesting sorghum, and then threshing; sowing autumn cucumbers in early August of the next year; and harvesting autumn cucumbers from late September to mid-October. Compared with a conventional planting mode, the rape yield can be increased by 4.7%, the sorghum yield can be increased by 6.8%, the total starch content and the amylopectin content of sorghum grains can be increased by 1% and 0.7% compared with rape and sorghum crop rotation, and the income per mu can be increased by 3519 yuan, 1743 yuan and 1132 yuan compared with oil field crop rotation, sorghum single cropping and rape-sorghum relay cropping. According to the planting method, variety selection is accurate, crop rotation connection is seamless, high economic benefits are achieved, and the planting enthusiasm of farmers can be promoted.

The present invention discloses a crop rotation stability pixel extraction method, system, device and medium, comprising acquiring image data and first historical crop planting type data of a target area, re-encoding from the first historical crop planting type data according to the position of each pixel in the image data to obtain second historical crop type data corresponding to each pixel, so as to determine a number of planting sequences corresponding to each crop in the target area and a crop rotation stability rate corresponding to each planting sequence; inputting the second historical crop type data into a plurality of pre-trained classifiers for classification respectively, obtaining the crop type and classification probability predicted and output by each classifier for each pixel; setting a probability threshold according to the planting sequence, classification probability and crop rotation stability rate; and when the crop type output by each classifier is consistent and each classification probability is greater than the probability threshold, determining that the pixel currently input to the classifier is a crop rotation stability pixel, thereby improving the classification accuracy.

The invention discloses a saline-alkali grassland management method based on ecological rotation and land sharing, which comprises the following steps: equally dividing a target land into a plurality of grid areas, collecting soil samples in different grid areas to measure the pH and total nitrogen content of soil, and dividing the soil into an ecological restoration area, a forage grass production area and an economic plant area according to the measured pH and total nitrogen content of the soil. Suaeda glauca and sesbania are planted in the ecological restoration area, alfalfa and leymus chinensis are planted in the forage grass production area, radix isatidis and purple perilla are planted in the economic plant area, and crop rotation planting is conducted on the three areas with two years as the cycle. According to the design, through complementation of plant communities, the fertilization requirement can be reduced, the soil remediation speed can be increased, grassland rotation management of multi-subject land sharing is achieved through ecological function complementation, the land utilization efficiency can be effectively improved, the grassland production-ecology-life three-generation functions are considered, and sustainable development of the saline-alkali grassland is promoted.

A process, system, and use of the system are disclosed, which enable the successive growth of aquatic animals and algae within the same aquaculture pond and optionally reduction of infestation species in ponds bottom solids of the aquaculture pond.

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 invention belongs to the technical field of agriculture, and particularly relates to a special nutritional supplement for crop rotation and a preparation method thereof. The special nutritional supplement for crop rotation comprises the following components in parts by weight: 45-50 parts of a hermetia illucens sand fermentation product and 30-35 parts of an algae extract, the hermetia illucens sand fermentation product is prepared by mixing hermetia illucens sand, compound bacteria, bean dregs and water, pulping and fermenting; the algae extract is prepared by mixing brown algae, red algae and chlorella and then fermenting. The special nutritional supplement for crop rotation prepared by the invention is simple in raw material source and low in preparation cost, can be used for a corn and soybean crop rotation planting mode in agriculture in high-altitude areas, and is beneficial to realizing double high yields of corn and soybean.