Pest control assisted sensors and monitors

The pest control sensors and monitors observe the high-precision dosing of liquids. In this meaning, the above written can be applied implicitly during the liquid or suspended fertilizer delivering. Pest control is one of the most expensive growing interventions, which has large environmental risk. Many professional trends live

really effective in those cases, which can be effectively isolated within a cultivated field with the exploration of one or more infectious focuses. In case of the quick, focused treatment of these, the success is evident. The exploration of these focuses for large areas and the identification of their location is one of the main virtues of airborne imaginary (see Chapter remote sensing). In many cases, the actual reason, such as a yellow spot cases. Therefore, those technical researches are very intensive, which are directed to the prompt detection of the damage placed in the machine, according to the results of the evaluation, continuous control of the mode of the spreaders in the space. The biggest advances in the area of weed control occurred in the field of automated weed detection. The basis of this is also the image processing and execution described during remote sensing, by soil cultivation is the above-mentioned video camera and GPS performing positioning created for field conditions. In practice, those solutions can be used easier, which change the herbicide dose depending on the soil properties.

Several herbicide doses have to be changed based on the organic matter and clay content of the soil. In lack of that, extinction or weeding can both occur in the traditional farming. Digital soil map and DGPS allow the actual changes of the delivered doses.

In the traditional pest control, in case of high-value machines, continuously variable spreader operation in moving is possible in many places (Figure 31).

Cropping technology of precision agriculture

The chemical dosing machine that can be seen in the above figure can be made in self-propelling or towed design. The spraying computer controls the data of the machinery by the DGPS and digital map data placed in the driver cabin. The application opportunities are presented in RDS computers that are widely used in the sprayed chemicals (l), the amount of liquid in the tank. The computer is able to work in automatic and manual-controlled mode, the dose you want to dispatch can be increased or decreased in 10% steps from the driving cabin. The computer is able to simulate in stationary state the pre-programmed working conditions depending on the speed, so the settings can be checked. The interface cable of the electrically operated sectional unit can be connected to the computer, so the computer will detect the number of the operating spreaders and segments. It is important that the device is also suitable for speed authentication, so the authentication of speed can be verified with the DGPS. Laser speedometer may be added separately. The operating parameters of the chemical treatment are preserved by internal memory, and can be printed separately.

The RDS DELTA 3J-A version also provides flow measurement-based control, however, it is equipped with a higher, 50 bar pressure limit flow meter, used in orchards. The newest RDS Delta 34 is a fast responding, automatic regulation system for all types of sprayer.

The control is based on the pressure sensation here. In case of the computer, which controls not only the spray, but N-solution and suspension fertilizer and lime mud it is important that the density of the material to be dispatched should be individually programmed. The size of 8 different types of nozzles can be pre-programmed to the computer.

In the above presented brief technological description has repeatedly been referred to the electrical remotely controlled sectional units that can be connected to the onboard computers with an interface. The sectional units split into sections the sprayer frame that can be regulated separately, so the volume of the chemical, which goes to the framework elements can be controlled. By field machineries 20, in case of fruit chemical dosing machines to the pressure of 50 bar, with a different section number depending on the model, through the electrical bypass

Through the electric volume control valve that can be built in the ARAG electric sectional, within one gear, in peed difference, the applied l/ha dose remains constant. If the farmer still does not want to invest in an expensive on-board computer, but has a general-purpose DGPS, then through an electrical sectional-controller unit shown in the above figure, control can be performed from the cabin adapted to the production site. Arag devices with wireless communication (W24) have automatic distribution control by flow rate and/or pressure detection either through flowmeter or pressure sensor. W24 module for sending/receiving data to and from other ARAG devices, in particular to receive spray rate information from Skipper automatically close boom sections and/or main valve when on treated areas send settings and valve status to Skipper. In practice of other vendors, the membrane-locked drip resistant spreaders are also used today, respectively little, but within definitely different treatment needed parts of the field, the setting change of the multi-position spreaders (Figure 33).

Cropping technology of precision agriculture

The adjustable-angle spreaders are particularly well used by under-leaf spraying or track spraying. The one or two-headed spreader can be rotated into the needed direction.

The introduction of the complete precision computer technology, in case of the self-propelled machines should be considered in any case, because the savings are here the largest (Video 6.).

The image shows that different amounts of chemicals are allocated from the sectional castor frame by the data of the GPS receiver placed on the top of the cabin. The performance-proportional costs can be improved further, if the pest control is performed with nutrient- management as a service. By these machines, rate of the time spent with actual work and associated working time (file out, service, maintenance, training) was better, than in case of those machines, which performed seasonal work.

To protect the environment and use less pesticide need to automaticly detect the wheet on field condition. The GreenSeeker sensor is an active light source, real-time plant reflectance sensor(http://www.ntechindustries.com). Its unique, optical-electronic system emits light at two wawelengths, measures the reflectances ( near infrared 770 nm and red 656 nm) and calculate outputs as NDVI realted value.

The sensors performs identically in sunlight and darkness. Sensor effectively can be use to control nutrient response, pest and disease impact and real time fertilizing or spot spraying.