Centrifugal fertilizer spreaders are by far the most commonly used granular fertilizer spreader type in Europe. Their spread pattern however is error-prone, potentially leading to an undesired distribution of particles in the field and losses out of the field, which is often caused by poor calibration of the spreader for the specific fertilizer used. Due to the large environmental impact of fer...

An alternative method for fertilizer spread pattern determination was developed based on predicting where individual fertilizer particles land on the ground, in contrast to the traditional method of collecting the particles in bins (ASAE Standard S341.2). A small broadcast granular fertilizer spreader (Lowery 300) was equipped with an optical sensor designed to measure the velocity and diameter...

The use of centrifugal spreaders for application of granular fertilizers raises concern about application accuracy. These spreaders enable to distribute almost uniform deposits with regularly spaced parallel tramlines but lead over and under fertilizer application when distances separating the successive tractor trajectories are not constant or if paths are not parallel between them. The aim of...

There is no specialized equipment designed to spread granular cylindrical organic fertilizer in the soil. are also rational recommendations available on how this type of fertilizer. Mineral spreaders most often used for spreading granulated However, these fertilizers significantly different from mineral fertilizers. Due differences, unevenly, and does not reach required working width. Furthermo...

Fertilizer spreaders are traditionally tested by using the collecting tray method . This method requires large indoor test facilities and is very expensive when applied on a large scale . A proposed alternative method is to measure the velocity and diameter of individual fertilizer particles emanating from the spreader and use a model to predict the landing spot of individual particles . The to...

A 3D imaging technique using a high speed binocular stereovision system was developed in combination with corresponding image processing algorithms for accurate determination of the parameters of particles leaving the spinning disks of centrifugal fertilizer spreaders. Validation of the stereo-matching algorithm using a virtual 3D stereovision simulator indicated an error of less than 2 pixels ...

Fertilization practice using centrifugal spreaders generally consists in the mass flow rate regulation thanks to the simple mathematical relation D=Q.L.V/600 where Q is the prescribed fertilization rate, L the working width and V the tractor speed. Modern machines equipped with DPAE device can thereby continuously control the mass flow rate with respect to the working width that is in most case...

The article presents the results of study to substantiate angle vertical installation fertilizer spreader, which localizes between rows cotton. Based on obtained, a working body is developed for mixing organic and mineral fertilizers during intercropping. movement pieces along X Y axes was studied. coordinates pieces’ landing point surface their velocities, motion equations in next jump were cr...

As the complex terrain in hilly areas is not conducive to corn mid-tillage precision fertilization, a corn-overlapped strip fertilizer spreader was designed without an external power source. By configuring passive overlapping spreading method with three-branch split chamber structure, uniform of strips achieved. A horizontal and vertical movement model developed determine angle extending tube, ...