32 results about "Plant population" patented technology

The invention discloses an intelligent control modular gardening combined lighting system and belongs to the technical field of gardening lighting and intelligent control, and the system comprises a micro-area lighting execution module which applies differentiated lighting to a plurality of micro-areas of a plant planting area according to an instruction; the plant and environment data acquisition module is used for acquiring a plant population state and microcell environment data; the group benefit evaluation module is used for evaluating the group benefit generated by the current illumination strategy on the plant group based on the acquired data; the illumination parameter acquisition and instruction generation module is integrated with an artificial intelligence engine, the engine receives the plant state, the environment data and the group benefit evaluation result, and generates or iteratively updates an instruction for the illumination parameters of each micro-area based on an optimization target of maximizing the group benefit; through AI-driven micro-area heterogeneous illumination regulation and control, active interaction between plant populations is actively induced, overall gain exceeding individual simple optimization is achieved, and an efficient and intelligent illumination solution is provided for facility horticulture.

The invention relates to the field of intelligent identification, and more specifically relates to a three-dimensional phenotype segmentation and labeling system for field corn crops, comprising: an initialization module for executing opening, loading and preprocessing tasks of field corn point cloud data files; the ground segmentation module is used for executing an automatic segmentation task of the corn plant population and the ground; the single plant identification module is used for executing a task of accurately segmenting single plants in the plant population and generating identification information; the skeleton classification module is used for executing skeleton calculation and data point category division tasks of the single-plant corn point cloud; the organ labeling module is used for executing stem and leaf organ structure division and labeling tasks of the single-plant corn point cloud; and the result interaction module is used for executing visualization of output data of the key steps of the modules and storage tasks of projection, segmentation, labeling and classification result data output by the modules.

The invention relates to the technical field of vegetable facility cultivation, and discloses a sunlight greenhouse high-lighting-effect cultivation method for overwintering tomatoes, which comprises the following steps: S1, greenhouse preparation: selecting a single-slope sunlight greenhouse with a front slope covering and walls on the east, middle and west sides, covering the front slope with a light-transmitting heat-insulating material, and covering the front slope with a heat-insulating roller shutter quilt containing double-layer heat-insulating cotton at night. According to the sunlight greenhouse high-photosynthetic-efficiency cultivation method for the overwintering tomatoes, by optimizing model selection and configuration of a greenhouse (such as covering a front slope with a high-light-transmittance PO film), adopting an accurate one-ridge double-row staggered-row planting mode and cooperating with scientific pruning and pruning, illumination distribution and a plant population structure in the greenhouse are systematically improved, and the yield of the greenhouse is increased; according to the method, the effective light reception of the middle and lower parts of the plants under the weak light condition in winter is remarkably enhanced, the photosynthetic efficiency of the whole canopy is improved, the problems of excessive growth of the plants, canopy closing, uneven coloring and the like caused by a traditional close planting mode are effectively solved, and a solid foundation is laid for realizing high quality and high yield of the overwintering tomatoes.

The invention discloses a genetic improvement method and a matched cultivation method of a kidney bean variety suitable for machine harvesting, and relates to the technical field of kidney bean planting. Through a molecular marker-assisted selection technology, key character gene loci such as pod cracking resistance and plant uprightness are accurately positioned, rapid screening of target genotypes is realized in early generations of hybridization, the breeding period is shortened by more than 40% compared with a traditional breeding period, and the breeding efficiency is remarkably improved; the bred variety has the characteristics of high pod cracking resistance, upright and lodging-resistant plants, concentrated pod bearing of main stems, good maturing consistency and the like, so that the working efficiency of the combine harvester is improved to 95% or above, the impurity rate is controlled within 3%, and the bottleneck problem of mechanical harvesting is effectively solved; through combination of deep scarification soil preparation and precision sowing, root system development and a population structure are optimized; a drip irrigation system and a dynamic fertilization strategy ensure accurate supply of water and fertilizer in a flower and pod period, and the plumpness of pods is improved by 15-20%; the growth regulator regulates the plant height to 2-3 m, and the lodging resistance is enhanced.

A mechanism for controlling the operation of an agricultural implement of an agricultural vehicle. A camera of the agricultural vehicle captures a digital image of a target region in the vicinity of the agricultural vehicle. A control system of the agricultural vehicle processes the digital image to determine an indicator of plant population in the target region. The control system further controls, at least when the agricultural implement is performing the agricultural task in the target region, the functioning of the agricultural implement responsive to the indicator of plant population in the target region.

The invention discloses a gene related to rice tillering as well as an encoding protein and application thereof, and belongs to the technical field of plant genetic engineering. According to the invention, a gene SSRP1 related to rice tillering is found, and a coding gene of the protein is reversely knocked out through a transgenic technology, so that dwarf multi-tillering transgenic rice is obtained. The tillering of the SSRP1 knockout plant is obviously increased and is 1.8 times of that of wild rice. The results prove that the SSRP1 gene participates in regulating and controlling the tiller number of rice, and can be applied to regulating the plant type and forming a reasonable plant population structure, so that the yield and quality of crops in unit area of cultivated land are improved.

The invention refers to standardized plant extract from biomass of in vitro cultures of Haberlea rhodopensis Friv. (HR), containing bioactive compounds and their primary secondary metabolites, containing in weight %, as follows: organic acid from 4.0 to 6.0, fatty acids from 0.5 to 1.5, amino acids from 8.0 to 12.0, sterols from 0.5 to 1.0, free phenols from 3.0 to 6.0, sugars from 45 to 55, and polyphenols from 25.0 to 35.0, with a predominant myconoside content of 70% to 96% in the polyphenolic fraction, constituting 18% to 35% of the total extract, and to a composition containing the standardized extract and glycerol as well as to a method for the preparation of a standardized plant extract.The method according this invention, along with its optimally chosen steps, specific conditions, parameters such as temperature, duration, stirring, light, growth factors, etc. achieves both maximum volumetric productivity of the target substances and myconoside, as well as stable productivity of the plant in vitro cultures and is a reliable efficient 24 / 7 continuous system for production of NPs.Dependence on natural factors, limited availability and protection of HR rare wild plant populations are eliminated. The limitations posed by seasonality and slow HR growth are also avoided by developing a renewable, ecologically method. The developed method provides alternative, renewable and sustainable sources of raw plant material necessary to obtain the target extract. The resulting extract standardized in myconoside is especially valuable with its protective action on human health and can successfully be used with its pharmacological, cosmetic effects as well as in functional foods.

The invention relates to the technical field of flower cultivation, and discloses a cultivation method of phalaenopsis amabilis, which comprises the following steps: before low-temperature induction treatment, performing admission verification on a plant population by analyzing gas metabolism response characteristics of the plant population in a diagnostic dark environment; after verification is passed, controlled metabolic consumption is performed on the plant population, osmotic pressure stress pulses are cooperatively applied during the period to synchronize root activity, and then synchronization energy accumulation is performed; according to the method, systematic physiological function regulation and control including admission verification are carried out on plant populations, passive adaptation to biological individual differences in traditional cultivation is converted into active and whole-plant-dimension physiological state standardization, and therefore the certainty of the cultivation process is fundamentally converted into industrial process control from biological randomness, and the cultivation efficiency is improved. And the predictability and the consistency of production are improved.

A mechanism for controlling the operation of an agricultural implement of an agricultural vehicle. Image data of an agricultural region is processed to identify a plurality of subregions and a respective indicator of plant population in each subregion. The geographic location of the agricultural vehicle is tracked and, when the geographic location overlaps an identified subregion, the operation of the agricultural vehicle is controlled responsive to the corresponding indicator of plant population.

The application discloses a kind of submerged plant recovery condition evaluation and its construction method, belong to environmental engineering technical field, steps are as follows: measure or estimate water surface illumination intensity and measure water transparency;Based on underwater light field calculation method obtains underwater light field information in recovery area;Whether it has recovery condition is evaluated in combination with plant population and community light compensation point data;For the area without condition, wind wave influence is evaluated using wind wave influence evaluation method on sediment, and combined with ecological enclosure, fish removal, bottom comprehensive improvement aid and microbial compound microbial agent measures, improve water transparency and other water quality conditions, complete submerged plant recovery.The application is simple, efficient, and the construction measures are scientific, reasonable, economical and convenient, which can effectively improve the survival rate of submerged plants.

The invention relates to an agricultural distribution machine (1) for distributing agricultural material, at least comprising: - a distribution rod (2) with at least two distribution sections (11, 12) movable relative to each other and with distribution units (3) arranged on the distribution sections (11, 12) for distributing the material to be distributed; - a sensor device (4) which is set up to detect a plant population (P) and to generate measured values. The invention is characterized by a determination unit (5) which is configured to determine at least one plant stand characteristic, preferably a plant stand density, based on the measured values ​​of the sensor device (4).

This invention discloses a method for topping Yunyan 87 tobacco variety suitable for low-latitude, high-altitude tobacco-growing areas. The method involves transplanting tobacco plants between April 25th and May 5th, and then classifying and topping the plants according to their growth status (early flowering, poor growth, average growth, good growth, and excellent growth). Specifically, for early flowering plants, the "flowering without leaf removal" method is used, lengthening the internode distance by 5 cm and leaving 16 leaves, with the plant height controlled at 80-85 cm after topping. For plants with poor, average, good, and excellent growth, 18, 20, 22, and 24 leaves are left respectively, with plant heights controlled at 90-95 cm, 100-105 cm, 110-115 cm, and 120-125 cm. Experiments have shown that this method significantly improves tobacco yield and economic benefits, with a substantial increase in per-acre output value and the proportion of high-quality tobacco, superior to traditional topping methods. This method effectively solves the problems of unreasonable plant population structure and low tobacco yield and quality in low-latitude, high-altitude tobacco-growing areas.

The invention relates to the technical field of agricultural biology, and discloses a plant feed genetic marker FTIR spectrum screening method which comprises the following steps: firstly, acquiring feed samples of a plurality of plant individuals from a plant population with genetic diversity, and collecting FTIR spectrum data of the feed samples; preprocessing the spectral data and extracting quantified spectral characteristic parameters, thereby establishing a spectral phenotype for each plant individual; acquiring genetic information of the plant individuals, wherein the genetic information comprises genetic locus data or gene expression profile data; and finally, carrying out correlation analysis on the established spectral phenotype and corresponding genetic information to identify one or more genetic markers significantly related to the spectral phenotype. Efficient nondestructive evaluation of the chemical quality of the plant feed is achieved through the FTIR spectrum technology, related genetic markers are accurately identified in combination with genetic information, and an effective way is provided for accelerating breeding of high-nutritive-value feed varieties and revealing a molecular mechanism of quality formation.

The application belongs to the technical field of desertification control, and particularly relates to a method for improving soil fertility of desertification grassland by using green manure, which utilizes green manure to improve soil fertility of desertification grassland by adopting the measures of sowing green manure, fertilizing and managing green manure, plowing green manure, applying organic fertilizer and long-term management. The organic fertilizer is a fertilizer prepared by loading organic matter on silicon-based phosphogypsum modified fly ash. Planting green manure in desertification grassland can improve soil structure, increase soil organic matter, improve soil fertility, promote the formation of soil aggregate structure, enhance the water and fertilizer retention capacity of soil, promote the biodiversity of grassland, increase the number of plant populations and vegetation coverage, and improve the productivity and ecological stability of grassland. In addition, the organic fertilizer can also reduce the use amount of chemical fertilizers and pesticides, reduce environmental pollution, convert industrial waste into a fertilizer with high utilization value, and reduce the negative impact on the environment.

The invention relates to the field of plant biotechnology breeding, and discloses a strawberry anther culture regeneration plant optimization method based on multistage screening, which comprises the following steps: constructing a regeneration first generation regeneration plant population through in vitro induction culture; detecting the ploidy of a single plant by using flow cytometry, and removing plants with abnormal ploidy according to a ploidy detection result; calculating a genetic similarity coefficient between the ploidy-stable plant and the parent by using a simple repetitive sequence marker, and removing a genetic variation plant to retain a superior line group; planting the superior line group in a field, and then measuring agronomic, physiological and fruit quality indexes; integrating ploidy, genetic coefficient and multi-dimensional character indexes to establish a grading evaluation model, and dividing the plants into different grades to establish a superior line. By constructing a cell, molecule and phenotype three-level linkage screening system, the screening efficiency and accuracy of strawberry anther culture regeneration plants are improved, and objective quantification of optimal line establishment is realized.

The invention relates to a method for applying spray fluid by means of an agricultural sprayer (100) having one or more detection units (16, 16a-16d), wherein the one or more detection units (16, 16a-16d) each comprise a multi-beam sensor (18), comprising the following step: detecting the distance between the one or more detection units (16, 16a-16d) and an agricultural area and / or the plant population (200) thereof by processing measurement values of the one or more detection units (16, 16a-16d) by means of an electronic data processing device, wherein the electronic data processing device carries out a measurement value correction when processing the measurement values of the one or more detection units (16, 16a-16d).

The present invention discloses a method for measuring the carbon dioxide response characteristics of plant population photosynthetic rate, which includes performing closed-loop detection on the photosynthesis of a plant population in an isolation container, and recording the corresponding detection time point, the measured CO2 concentration, the pressure and temperature in the isolation container, and drawing a trend graph of the CO2 concentration value changing over time and a trend line fitting based on the measured data; selecting a number of data points on the fitted trend line for derivation, calculating the trend line slope k at the selected point position, importing the slope k of the corresponding data point, the pressure, the volume of the isolation container and the plant area into a population photosynthesis calculation model, and calculating the population photosynthetic rate; drawing a carbon dioxide response curve of the plant population photosynthetic rate based on the obtained population photosynthetic rate and the corresponding CO2 concentration. The method of the present invention can accurately measure the relationship between the plant population photosynthetic rate and the CO2 concentration, and the method can be applied to the plant variety breeding process to help select plant varieties with high light efficiency.

Water hyacinth (Echhornia Crassipes) is an aquatic plant known as one of the most important and dangerous aquatic weeds globally. This plant has significant effects on the ecosystem and aquatic environment, causing disruptions in sea transportation and sometimes leading to the destruction of aquatic life in its habitat. Water hyacinth has led to pollution of geographical areas in many countries, recognized as an environmental problem that disrupts the food cycle, water quality, and marine industries. The destructive effects of this plant are so severe that some sociologists consider it a key factor in poverty and hindering the development of countries and the planet. Each water hyacinth plant produces about 1 liter of water waste daily, posing a serious threat to the world's fresh water resources due the millions of plants worldwide. Until today, various chemical, biological and mechanical solutions have been utilized to control this invasive plant. These strategies have not had a significant impact in some geographical areas, or on the contrary, they have had harmful effects (such as the effects of using strong herbicides) on the environment and aquatic ecosystems. Notably, many solutions have not effectively targeted the abundant and resilient seeds of water hyacinth. By utilizing biological signaling (biological messages) to promote bacterial symbiosis in water hyacinth for nitrogen fixation from the atmosphere, and spraying a solution without herbicides or strong poisons, with the aim of establishing the cycle of nitrogen fixation in the plant by inhibiting growth and or the effect on the bacterial symbiotic species in water hyacinth, the production of seeds in the plant is very little and even stopped, as well as the effects of decline and acceleration of the aging process of water hyacinth and the destruction of the plant appear. As a result, we will witness a decrease in the plant population, decrease in growth and reproduction, a significant decrease in water consumption, and a decrease in the quality of the biological tissues of the plant as a result of limiting the resources created for the water hyacinth plant. According to the investigation and study of the effects of this method on micro-organisms and macro-organisms in the water and its margins, it seems that this innovative solution by targeting the fixation of nitrogen from the air and disruption of symbiosis in water hyacinth has a significant effect and the lowest environmental risk compared to other methods.

This invention discloses a method for measuring the light response characteristics of plant canopy photosynthetic rate. The method includes placing the plant population under test in an isolation container to maintain a stable CO2 concentration; adjusting the light intensity to a set value to induce light induction in the plant population; then performing closed-loop monitoring of the plant population's photosynthesis; plotting trend graphs of CO2 concentration changes over time under various light intensities and fitting trend lines; selecting several data points on the trend lines for differentiation; calculating the canopy photosynthetic rate; and plotting the light response curve of the canopy photosynthetic rate based on the canopy photosynthetic rate and the corresponding light intensity. This method for measuring the light response characteristics of plant canopy photosynthetic rate can accurately determine the relationship between plant canopy photosynthetic rate and light intensity. In plant variety breeding, measuring the light response curve of plant canopy photosynthetic rate can yield the canopy photosynthetic characteristics and light energy utilization efficiency of plants under different light intensities, which is beneficial for selecting high-light-efficiency crop germplasm resources or varieties.

The invention provides a specific area plant population carbon sink monitoring method, and belongs to the technical field of natural resource planning and ecological management. The method comprises the following steps: firstly, constructing a multi-modal ecological sensing network of a specific area, and constructing a differentiated carbon sink data set covering macroscopic and microscopic dimensions by combining satellite images, a foundation laser radar, a soil flux and a micro root canal system; then heterogeneous data preprocessing and feature engineering are executed, multi-source heterogeneous data are subjected to space-time alignment, voxelization coding and ResNet feature extraction and deep fusion to generate a unified multi-dimensional carbon sink feature map, and a physical constraint parameter set is solved; thirdly, constructing a physical guidance graph-based neural network measurement model with data precision and physical credibility to carry out regression prediction on carbon reserves; the prediction robustness of the model under the condition of sample scarcity or environment sudden change is improved, and the comprehensiveness and precision of carbon sink metering are greatly improved.

The embodiment of the invention relates to the technical field of information, in particular to a decentralized planting crop pest prediction method and system based on multimode data. The method comprises the following steps: reading a map of a target area, obtaining a water body position and a terrain type according to the map, and reading temperature data and rainfall data of the target area within a preset duration; reading an aerial image of the target area within a preset duration, and identifying crop types, plant populations and animal individuals in the target area; predicting an animal population according to the plant population, and correcting the predicted animal population by using the animal individuals; according to the water body position, the terrain type, the crop type, the temperature data and the rainfall data, predicting the pest type and the pest scale; and correcting the pest scale according to the animal population, and obtaining a crop pest prediction result according to the corrected pest scale and the crop type.

The present application relates to a kind of crown layer mist drop deposition performance online detection system and spray performance comprehensive evaluation method, including support, base, mist drop detection device and control system.The present application is according to the morphological characteristics of crop canopy, builds the support model same with crop growth parameter, mist drop receiving model is divided into n layers, each layer evenly distributes m sampling points, each sampling point is fixed with a mist drop detection device, with mist drop detection device the support is placed in the middle of plant population, after spraying, the front and back mist drop deposition images of each mist drop receiving plate are collected, the evaluation indexes such as the calculation of mist drop penetration performance, mist drop volume median diameter, mist drop deposition uniformity and the ratio of front and back mist drop deposition amount are calculated, and the spray performance of this time is evaluated according to the evaluation index.The present application can more truly reflect the spraying effect, can avoid the error caused by the error of simplified model, while realizing the simultaneous detection of mist drop front and back at multiple sampling points, with high degree of automation, can be better used for spray performance evaluation.

The application discloses a method for reestablishing a wild plant Hainan wind-blowing nanmu field population, and belongs to the technical field of wild plant conservation. The method comprises the following steps: returning seedling cultivation, returning land selection, field domestication, returning land habitat repair, land preparation and hole digging, planting, and field returning population monitoring and management. The method significantly improves the growth of Hainan wind-blowing nanmu seedlings, and the height of the cultivated half-year seedlings can reach 65.3 cm, and the ground diameter can reach 1.23 cm. After returning for 3 years, the survival rate of the seedlings reaches 94.6%, the plant height is 1.76 m, and the ground diameter is 2.93 cm. The application not only can cultivate high-quality Hainan wind-blowing nanmu seedlings in large quantities, solves the problem of low propagation efficiency of Hainan wind-blowing nanmu, but also can successfully reestablish the field population of Hainan wind-blowing nanmu, expand the population quantity and scale, and lay a technical foundation for the protection and recovery of the species.

The invention discloses a mining area reclamation sugar cane high-sugar and high-yield planting method for optimizing physical and chemical properties of Guangxi soil, and relates to the technical field of agriculture and environmental remediation. A formula is improved based on the typing preparation, and formula quantification parameters are output; applying the improved formula layer by layer according to depth to obtain layered application amount distribution data; selecting a pairing scheme according to the layered release amount distribution data and the layered physicochemical improvement result to obtain a paired plant group scheme; carrying out cultivation regulation and control based on the paired plant group scheme to obtain a sugar content and yield time sequence curve; the sugar and yield time sequence curve is used for triggering a monitoring-adjusting closed loop, and long-term stability treatment measures are output; according to layered application, an active modifier and a passivator are placed at key layers of crop main root system activity, so that root zone pores, ventilation and nutrition accessibility are preferentially improved, and the rhizosphere environment quality is improved without greatly changing the overall soil structure of the earth surface.

An artificially-created honey-yielding environment is established, including a hive and an associated flora cell, within which first and second plant populations cohabit. Within the cell, honey-producing insects from the hive are permitted to forage. One of the populations has been artificially introduced. The other may be indigenous to the cell. The first plant population serves as a primary source of nectar which yields bioactive honey and the second serves as a source of a nutrient, such as protein, which is not abundantly available from the first species at a nutritionally adequate level for sustaining the metabolism and energy of the foraging honey-producing insects for returning to the hive. The first flora population may be a Leptospermum species. An example of the second is Corymbia maculata.

The invention provides a herbaceous plant community monitoring method and application thereof, and belongs to the technical field of ecological environment monitoring. The method comprises the following steps: dividing a quadrat, sequentially marking epiphytic points of plant individuals in the quadrat, and measuring character indexes of the plant individuals; and representing the position information of the epiphytic point location of each plant individual in the quadrat in a coordinate form in a coordinate system, and correspondingly marking the character index information of each plant individual to obtain monitoring of the plant population individuals and the character thereof in the horizontal space distribution. According to the method, the character index of each plant individual of each population in the community is matched with the corresponding spatial position, and the difference of the individual characteristics of the population in the spatial position can be quantified, so that an important ecological process is revealed; the method has a good application prospect in biodiversity evaluation, community structure analysis, community succession dynamic monitoring and ecological system function research.

A plant cultivation method, apparatus and system, relating to the field of agricultural intelligent control. The method comprises: acquiring a first image, and inputting the first image into a first model to output a first height curved surface and first planting information; on the basis of the first height curved surface, determining a first reference height; inputting the first reference height, the first height curved surface, and the first planting information into a second model to output a first deviation value; on the basis of the first deviation value, longitudinally dividing the first height curved surface into multiple height regions, and determining a second height curved surface of each height region; inputting the first planting information and each second height curved surface into a third model to output a first cultivation plan, the first cultivation plan comprising a fertilization mode and a planned cultivation duration; and after the planned cultivation duration, re-executing a first cultivation operation. On the basis of the solution, in an unmanned farm, the height of a plant population can be controlled, so that a harvester can harvest normally. In addition, the cultivation operation is repeated regularly, so that a virtuous internal cycle of the unmanned farm is achieved.

The application discloses a kind of method and system for intelligent collaborative regulation and accumulation of plant active ingredient, it is related to plant metabolism regulation technical field, including the collection of plant population multi-source data, corresponding individual state vector is constructed, and plant population is carried out cluster analysis based on individual state vector, obtain a plurality of regulation subarea and its representative state;Combining the representative state of each regulation subarea and the change information of active ingredient, the metabolism flux inversion is carried out to each regulation subarea, and the corresponding metabolic pathway rate information is obtained;According to metabolic pathway rate information, identify the metabolic bottleneck of active ingredient accumulation in each regulation subarea, generate corresponding control demand, map control demand into micro stress control parameter, and construct stress sequence model including stress intensity, duration and action interval.The application constructs metabolism flux inversion and subarea collaborative regulation mechanism based on multi-source data, improves the regulation precision and dynamic adaptive capacity of the accumulation process of plant active ingredient.

This invention relates to a method, apparatus, and system for diagnosing plant conditions, within the field of intelligent agricultural control. The method includes: acquiring n local images at n time points, performing color correction on each of the n local images, determining a target image based on the n local images, inputting a preset RGB reference value, a preset tolerance threshold, and the target image into a first model, and outputting a first feature image; inputting the plant variety of a first plant population, the target image, and the first feature image into a second model, and outputting a first diagnostic result. Based on this scheme, unmanned farms can diagnose plants with growth problems. Furthermore, color difference correction is applied to the images, effectively avoiding the impact of color differences during image capture on plant condition diagnosis.

Agricultural sprayer (10), in particular field sprayer, comprising at least one capture device (20) which is configured to capture a plant stand (N2, N3), in particular in the form of weeds and / or wild vegetation, on an agricultural area, at least one first and second application element (30, 40) which are arranged on a spray boom (11) and are configured to apply spray liquid depending on an operating state (B1-B3) on the agricultural area (N1), in particular on its plant stand (N2, N3), and at least one adjustment device by means of which the impact area (A) of the spray liquid that can be applied by the at least one first and / or second application element (30, 40) can be adjusted.wherein the spray liquid can be applied in a first operating state (B1) via the at least one first application element (30) and in a second operating state (B2) via the at least one second application element (40), wherein the at least one first and second application element (30, 40) each have different spray profiles, and wherein the operating state (B1-B3) can be selected depending on the detected plant population (N2, N3), characterized in that the speed of the sprayer (10), in particular of at least one application element (30, 40), can be detected and the operating state (B1-B3) can be selected depending on the speed.