52 results about "Test plot" patented technology

A method of planting test plots of different seeds in a field includes loading a multi-row planter with a first seed, and traversing the field and planting a test plot of the test plot of the first seed in a portion of the test field; automatically removing the first seed from the multi-row planter and loading a second seed into the multi-row planter, and traversing the field and planting a test plot of the test plot of the second seed in the field.

The invention discloses a construction method for a field plot trial of fertilizer application to paddy fields. Through the selection of a test field, ridges of plots and footpaths are constructed by repeatedly settling moist soil in a paddy field; a plot irrigation mode that main grooves are connected with small grooves is adopted so as to increase the repeated treatment times of each plot; the plots are set in a block so as to ensure that the density of transplants and the number of seedlings in the plots are identical. The construction method comprises the following steps: A, selecting the test field; B, setting the plots; C, constructing the plots; D, applying fertilizers to the plots; F, raising and transplanting seedlings; G, irrigating the plots; H, intertilling and weeding; I, controlling pest; J, harvesting rice; H, sampling soil and ground water. The test plots are simple in structure and low in construction cost, and the cross flow of water and nutrients among the plots are effectively avoided. Therefore, the construction method is suitable for various field plot trials of short-term and long-term fertilizer application, agricultural chemicals, varieties, irrigation, cultivation, discharge of greenhouse gasses, and runoff and leaching loss of nitrogen and phosphorus nutrients.

The invention belongs to the field of seed sowing devices, and particularly provides a plot seed sowing device which comprises a seed groove and seed discharge barrels. First seed discharge holes and second discharge holes are formed in the bottoms of two sides of the seed groove, and first seed discharge barrels and second seed discharge barrels which are matched with the first seed discharge holes and the second seed discharge holes are arranged at the bottoms of the two sides of the seed grooves; first arc-shaped block pieces are arranged between the first seed discharge holes and the first seed discharge barrels, second arc-shaped block pieces are arranged between the second seed discharge holes and the second seed discharge barrels, the first arc-shaped block pieces and the second arc-shaped block pieces extend to positions below the seed groove and are hinged to first connecting rods and second connecting rods, the other end of each first connecting rod and the other end of the corresponding second connecting rod are hinged onto a lower draw bar, and a return spring is arranged between the lower draw bar and the bottom of the seed groove. The plot seed sowing device has the advantages that the plot seed sowing device is simple in structure and convenient to operate, double rows of seeds can be sown at each procedure owing to the corresponding double seed discharge barrels, and accordingly the seed sowing efficiency can be effectively improved; the plot seed sowing device is particularly suitable for sowing seeds in test plots.

A difference in feed roller diameter from one printer to another causes a media to advance by a different amount for a given rotation of a drive shaft to which the feed roller is coupled. Such variation in advance distance is a linefeed error. Mean linefeed error is determined and corrected by printing a test plot having several areas. Each area is formed of the same image pattern, but is printed at a different linefeed error adjustment to compensate for mean linefeed error. The different adjustments are prescribed and span a typical compensation range for a given print engine model. The different adjustment factors cause banding to occur in some areas. The user picks one of the test pattern areas which has the highest print quality (i.e., least or no banding). The linefeed adjustment factor corresponding to such area is used for normal printing.

The invention discloses a water and fertilizer integrated variable-rate corn fertilization method based on unmanned aerial vehicle monitoring. Aerial photography is performed on corn canopies in a test plot and a recommended fertilization zone at a six-leaf stage and a ten-leaf stage of corn respectively by an unmanned aerial vehicle, corn canopy orthoimages are acquired with the six-leaf stage asa main object and the ten-leaf stage as a supplementary in an analysis result; the optimal canopy image color parameter is screened out; fuzzy membership discrimination is performed on crop images inthe recommended area according to different spectral values and spectral standardized values of window test plots subjected to different fertilization treatment ; the window test plots are added to the recommended fertilization area to maintain consistency, corresponding spectral standard libraries are established according to different responses of different soil and different crops, the corresponding relation between corn canopy features obtained by the unmanned aerial vehicle and the window test plots is established.

The invention provides a test method for manual simulation of a hail shooting disaster, which comprises the following steps of: (1) taking cotton growth period, hail size and hail shooting density as variables to design a hail disaster situation; (2) dividing a test field into a test plot and a check plot; and dividing the test plot according to the situation designed by the step (1); (3) in each cotton growth period, according to the situations designed by taking the hail size and the hail shooting density as variables in step (1), respectively carrying out manual simulation hail shooting impact tests on cotton plants in corresponding test plots, and observing and recording traits of the cotton plants before and after impact in corresponding test plots and check plots; and (4) after completion of a last cotton growth period, observing and recoding yield traits in corresponding test plots and check plots, and processing and analyzing observation data. Through the test method for manual simulation of the hail shooting disaster provided by the invention, the aim of quantitative research of loss caused by hail damage to crops can be reached, so that kernel parameters of kernel disaster, loss and further risk assessment of vulnerability of a bearing body of the hail disaster can be determined.

The invention relates to a soil filling construction method for a slope land water balance test. The method comprises the following steps of a, selecting a test soil sample, and excavating the test soil sample in layers; b, heaping the soil sample in layers; c, preserving moisture, and making uniform the moisture content of the soil sample; d, performing a compaction test; e, performing a rolling compaction test; f, measuring the original moisture content of the soil sample; g, back-filling the soil sample strictly according to dry density; h, ensuring uniformity in the thickness of the back-filled soil; i, compacting the back-filled soil; j, verifying the back-filled soil. The construction method is reasonable in construction design and easy to operate, the back-filled soil of a slope land test plot can be ensured to be close to natural soil, consistency between the filled soil and an actual slope land soil structure is also ensured, and a construction reference is provided for the soil filling of plot construction in other related tests.

The invention relates to a method for resisting water in soil of field experiment plots. The method comprises the following steps: (1) determining the total length and the total width of a test field according to the required area of the experiment plots and the length-width ratio of the experiment plots; (2) determining the line space and plot space of each plot according to the step (1); (3) removing the soil between every two lines and between every two plots in the step (2); (4) arranging water-resisting layers among the experiment plots in the step (3), and back filling the removed soil; (5) leveling and compacting the soil between every two lines and between every two plots of each test plot in the step (4); (6) leveling the surface of each test plot in the step (4) and compacting the contact sites between the experiment plots and the water-resisting layers; and (7) covering soil layers which can prevent wind erosion and solar radiation-caused aging and prevent being broken during work onto the water-resisting layers in the step (4). The method provided by the invention does not disturb the field soil, and ensures the natural field soil characteristics, and the objectivity of the experimental study is improved. The materials are easily accessible, and the fabrication cost is low.

The invention discloses a method for applying an organic fertilizer based on heavy metal load of farmland soil. The method includes the following steps: S1: selection of test materials: firstly, a test plot is selected, a soil parent material of the test plot is flood alluvial, the soil type is clay alluvial calcareous cinnamon soil, and a pig manure organic fertilizer is applied; S2. test treatment: the conventional chemical fertilizer treatment and the pig manure amount gradient treatment are set on the selected test plot, several repetitions can be set for each treatment, multiple test zones corresponding to the conventional chemical fertilizer treatment and the pig manure amount gradient treatment are set with random arrangement, and the test zones can be separated from the north and south by fields and separated from the east and west by plastic plates; and S3. sample collection: soil samples are taken at a maturity stage of the wheat. The method quantitatively studies the influence laws of heavy metals such as Cu, Zn, Cr and Cd accumulated in the soil after continuous application of the pig manure organic fertilizer, provides a scientific basis for controlling heavy metal pollution of farmland soil from the source, and is suitable for popularization.

The invention discloses a manufacturing method for a field test plot setter and a device. The manufacturing method comprises the following steps: manufacturing a sealing bearing in the middle of a vertical insertion rod, and manufacturing a tape measure box with an angle measuring function on the vertical insertion rod below the sealing bearing, manufacturing a common bearing connected with the vertical insertion rod in the tape measure box, connecting the sealing bearing with the common bearing in the tape measure box through a bearing rotary rod, winding the tape measure on the outer ring of the common bearing in the tape measure box, drawing a straight line with special length according to the requirements, setting required straight line with special angel and length by taking the straight line as reference to define plots of a rectangular plot or a square plot or a parallelogram plot. The manufacturing method solves a problem that a conventional test plot has strict angle requirements on terrain during testing and is difficult to test, has dual functions of angle measuring and length measuring, and the vertical insertion rod can be telescopic for being conveniently carried; moreover, the manufacturing method has the advantages of being quick to set plot, simple in structure and operation, low in cost, wide in application prospect and the like.

The invention discloses a field runoff test plot dry branch and fallen leaf intercepting and cleaning device which comprises an interceptor, cleaners, a rainfall sensor, a power conveyor, a solar panel and a storage battery; the interceptor is of a semi-opening type triangular prism-shaped body, can intercept dry branches and fallen leaves carried by runoff at a water outlet of a plot and is equipped with two cleaners, and the cleaners can be driven by the power conveyor to slide along a stainless steel strip at the upper end of the interceptor. The rainfall sensor, the solar panel and the power conveyor are all connected with the storage battery through electric wires respectively; and whenever rainfall reaches a certain threshold, the rainfall sensor can be triggered to convey a signal to start the power conveyor so as to drive the two cleaners to slide from the top end of the interceptor to the two sides and strip and clean up the dry branches and fallen leaves accumulating outsidethe interceptor. The field runoff test plot dry branch and fallen leaf intercepting and cleaning device is simple in structure and convenient to mount, can effectively intercept and clean up the dry branches and fallen leaves at the water outlet of the field runoff test plot and realize scientific and effective collection of runoff and sediment samples of the runoff test plot.

The invention discloses a method for screening phosphorus-efficient genotypes of crops, which belongs to the field of evaluation on crop variety resources. 20-year-old soil fertilizer is used for long-term located testing, NPK (nitrogen, phosphorus and potassium) fertilizer and NK (nitrogen and potassium) fertilizer with evident difference in phosphorus nutrient are used to treat soil, and screening of phosphorus-efficient genotypes of the crops is performed on a field. The method includes: dividing the field into a plurality of test plots, and building cement ponds around each test plot for isolation; randomly planting test varieties into the test plots, using no less than ten plants of each variety, repeating planting for four times, and performing same managements; calculating the single plant yield in each repeat, using an average as the singe plant yield in each repeat, and using the averages of the four repeats as final yield results for analysis and evaluation. The method has the advantages that the method is more comparable and more reliable than the fluid-culture method and the sand-culture method using a greenhouse and tests using field soil at different places, and ideal phosphorus-efficient genotypes can be screened out to be directly used as material for selection, production and application of new varieties.

The invention discloses a method for improving secondary salinization of soil in facility cultivation, which comprises the following steps of: selecting a test plot, planting protection rows around the test plot, sowing plants and fertilizing in the test plot by adopting a drill sowing mode, wherein the seeding amount is 250-350kg/hm<2 >, irrigation is carried out until the soil is moist, a film is paved and moistened, the film is removed after the seeds sprout and come out of the soil, the seedlings are mowed after reaching 30-40cm, during the whole production period, the seedlings are mowedfor 6-8 times, no topdressing is carried out after each mowing, and the whole production period does not control plant diseases and insect pests; and the fertilizer for fertilizing is a microbial bacterial fertilizer or a rice chaff fungus matrix fertilizer. The method for improving the secondary salinization of the soil in the facility cultivation can obviously improve the pH value and CEC valueof the soil, can improve the fertilizer conservation effect of the soil and reduce the nitrate content in the soil; by planting the water spinach, the residual nitrogen in the soil can be reduced, andthe purposes of reducing the salt content of the soil and relieving the secondary salinization of the soil can be achieved.

The invention discloses a large-scale fusarium graminearum inoculation method which comprises the following steps of: preparing a fusarium graminearum conidium inoculant, adding the conidium inoculantinto tween 20 at nightfall or in a cloudy day when a material is identified at an early flowering period, uniformly spraying onto wheatears in a test plot to be subjected to inoculation identification through an electric sprayer, covering the wheatears with a white transparent plastic film, and removing the film after moisturizing. According to the inoculation method, a disease index and a prevalence rate of the ears reach 80-90% and 90-100% respectively under the film covering and moisturizing conditions.

The invention relates to a novel slope runoff and interflow velocity measurement tracer release instrument, which comprises a base, a main supporting rod, a tracer barrel sleeve, a tracer barrel, a tracer bag, a tracer bag connection rod, a tracer bag connection rod frame, a handheld rotation rod terminal sliding and rotating shaft sliding shaft frame, a tracer connection rod frame general connection rod and a handheld rotation rod, wherein the tracer barrel is arranged in the tracer barrel sleeve; the upper part of the main supporting rod is provided with the handheld rotation rod terminal sliding and rotating shaft sliding shaft frame; and a handheld rotation rod starting-end rotation shaft sleeve is arranged in a handheld rotation rod terminal sliding and rotating shaft sliding groove of the handheld rotation rod terminal sliding and rotating shaft sliding shaft frame, and the handheld rotation rod sliding and rotating shaft is adopted for movable connection. The novel slope runoffand interflow velocity measurement tracer release instrument has the beneficial effects that one-time hand-control connection rod operation is achieved, five branch tracer bag connection rods can release the tracer smoothly and flexibly at the same time, and transverse and uniform release of the tracer at the upper end of a slope runoff test plot is ensured.

The invention discloses a vibroflotation compaction method for pipeline backfill construction. The vibroflotation compaction method comprises the steps that 1, a test plot is selected, a construction site is cleaned and leveled, point locations are measured and placed through a GPS, the point locations are arranged in a regular triangle mode, and the distance between every two point locations is 2m or 1.5m; 2, a vibroflotation device is installed on a crane and aligned with vibroflotation points; 3, the crane and the vibroflotation device are started, the vibroflotation device sinks rapidly, and the pore forming speed is controlled to range from 2m/min to 2.5m/min; 4, when the vibroflotation device sinks to the preset compaction depth, the water injection amount is reduced to the minimum, vibration is reserved for 10-20s at the depth, and then the vibroflotation device is lifted at a constant speed; 5, the vibroflotation device is lifted at the speed of 1.5-2m/min, and vibration is reserved for 10-20s every time the vibroflotation device is lifted by 0.5m; and 6, after construction of the current point location is completed, shutdown, water shut-off and machine moving positioning operation is conducted, and the steps 2-5 are repeated on another vibroflotation point for construction till construction of the whole test plot is completed. According to the vibroflotation compaction method, after vibroflotation parameters are determined through tests, construction is conducted comprehensively, and the construction quality is guaranteed.

The invention relates to the field of soil environment treatment and remediation, in particular to a vacuum extraction layering testing method for soil air permeability based on cluster wells. The soil air permeability vacuum extraction layering test method based on cluster wells comprises the following steps: analyzing hydrogeological data of a test plot, building a well, connecting equipment, carrying out vapor extraction and airflow monitoring, and calculating soil air permeability; through the method, the gas pressures of different depths and different layers of a monitoring point can be measured; the method is high in result precision and high in representativeness, the air permeability of soil of different depths and different soil layers can be obtained through one-time measurement,the air permeability of different soil layers can be obtained through one-time test, manpower, material resources and time are saved, and the method is effectively used for soil pollution treatment and remediation design and construction.

The invention discloses a device for measuring grain yield in a test plot. The device comprises a rack; a material containing box and a material receiving box are sequentially arranged in the rack ina connected manner from top to bottom; the material containing box comprises an upper box body and a grain moisture content measuring device fixedly arranged at the bottom of the upper box body; and amaterial containing box weight measuring device is arranged in the rack corresponding to the position of the material containing box. The device has the advantages that the structure is simple and ingenious, the measurement is facilitated, the total weight, the volume weight and the moisture content of the grains harvested in the test plot can be accurately measured at one time, the labor intensity and the measurement cost on manual signal collection are reduced, and the detection efficiency and the measurement accuracy are improved.

The invention discloses a field natural slope surface runoff and interflow monitoring device. The device comprises a test plot for separately monitoring surface runoff and interflow, a surface runoffcollecting device and a layered interflow collecting device, and is characterized in that the test plot for separately monitoring the surface runoff and the interflow is connected with the surface runoff collecting device and the layered interflow collecting device through flow guide pipes respectively. The device has the beneficial effects that the surface runoff and the interflow of different layers are separately guided out, the surface runoff can be collected and guided out without errors, meanwhile, the difficulty that the interflow cannot be accurately guided out originally can be solved, and the interflow of each layer can be accurately collected; the surface runoff collecting device adopts two-stage shunting and can collect surface runoff which is dozens of times of the volume of the pool; and the stratified interflow collecting device can continuously monitor stratified interflow by adopting a triangular weir crest principle.