How to choose a harrow and not mistake

When making any purchase, we proceed from its need, the ability to use it more widely and, of course. reliability of the product.

In the case of a harrow, clarification of information about the purpose of this unit, its additional capabilities and the best samples produced by well-known brand companies would be appropriate. As additional information, information about the conditions of maintenance of harrows, the possibility of replacing worn parts and repairs will serve.

The practical benefit of shallow tillage by the method of harrowing consists in increasing fertility, restoring the humus layer, which significantly reduces the overall cost of cultivating agricultural crops.

Purpose of the harrow and types of tasks. which they can decide

The main function of this weapon is the cultivation of the soil in the period of its preparation for sowing, and the purpose of the treatment is to loosen hardened clods with the simultaneous planning of the terrain fields for more efficient carrying out of sowing , removal of plant residues (not removed in autumn) that turned into garbage after winter, and at the same time conserving moisture in the top layer of the soil. harrowing can be combined with cultivation or plowing, depending on the characteristics of the specific field and the technical capabilities of the agricultural company. And the task at most involves giving the plowed soil an optimal structure after the harrowing operation, which does not allow the appearance of a plow sole.

The main criterion when choosing a harrow model is its practical adequacy to perform a specific task. For example, a light disc harrow is suitable for peeling last year's stubble after grain crops. however, processing residues after corn or sunflowers requires a heavier, powerful harrow model. Or a disc harrow with large diameter discs. Both will be much more effective, but if there is frequent rain in your area at this time of the year. which means increased soil moisture, then the best solution will be an additional pass with a light harrow, rather than a simple one when a heavier unit is stuck. But this method will require additional fuel consumption. For the complete destruction of weed residues, it will be productive to use two-row disc harrows with a mandatory roller or a system of slides. For high-quality planning of the topography of the field, it is enough to apply additional ones leveling discs .

Different types of harrows and their features

In addition to the division of harrows by mass: light, medium and heavy, they are divided by the type of construction into: disc, toothed, spring and needle. And since this classification is much more important for making a decision on the choice of a harrow, it should be considered in more detail. Disc harrows are the main working tool in disc harrows.

Which are located at an angle to the direction of movement of the unit. By changing this angle (it is called the "angle of attack"), the depth of the processed layer is increased or decreased.

By design type, disc harrows are also divided into sectional ones, where all discs are placed on one shaft in the form of a "battery". Harrows of this type are usually cheaper. but also more difficult to maintain. When harrowing fields with plant residues, it is possible to wind them on the working bodies. which causes the need for frequent stops to clean the discs.

The second type of disc harrows includes units with the arrangement of working bodies on individual racks. These harrows are often called diskers. This type of harrow is relatively more expensive, but it benefits in maintenance and repair due to the saving of temporary costs for these procedures. In addition, the individual placement of disks has a positive effect on the quality of harrowing.

Disk harrows also differ in the number of rows. for example: light two-row or heavy on elastomers . All these differences, as well as the shape of the discs and their diameters, determine the main purpose of each specific type of harrow, which is usually described in the documents accompanying the unit.

Due to the fact that discs can have a different surface, it is important to know that smooth discs (without cuts on the surface) are effective on a dense soil surface, as on light, moist soil, i.e. with a lower density - smooth disks will "hang", while disks even with small cutouts will not slip on the soil and, accordingly, will successfully perform harrowing. A disc harrow with camomile cutouts is needed to chop stubble after industrial crops (corn, sunflower), especially after rains.

In toothed harrows, the working bodies have the shape of teeth, and the teeth themselves can be of different configurations, as well as round, square or other cross-section. Here, the method of tilling the soil is slightly different: the front part of the tooth cuts the soil, and the sides - crush lumps of earth. Toothed harrows can be used to dig into the soil layer by 10 cm. What is used for simultaneous cultivation and/or sowing. In general, toothed harrows are divided by force, pressure exerted on the tooth:

• - in heavy harrows - pressure - 2-3 kg, processing depth - 5-8 cm, used on clay and loamy soils;
• - in medium harrows - pressure - 1-2 kg, processing depth - 4-6 cm. used on light, loose soils;
• - in light harrows - pressure - 0.5-1 kg, processing depth - 2-3 cm, used only for the upper layer.

In spring harrows, the main working tool is also a tooth of various sections, but it is elastic, i.e. not fixed rigidly vertically. This type of harrow can be mounted, semi-mounted or trailed. Spring harrows are used from sowing or after harvesting. And also when applying fertilizers, when collecting in the straw rolls. Aggregates with spring teeth affect the upper layer of the soil by the method of vibration, which is practical for inter-row processing . because it allows minimal disturbance of the soil and does not disturb the growth of plants. This type of harrow is used both for grain and industrial crops.

Needle-type harrows are used for anti-erosion soil treatment, as well as for crushing the ice crust on winter crops. these harrows are effective in closing soil moisture in early spring on stubble backgrounds.

Advantages of different types and types of harrows

In addition to the differences listed above, harrows can also have a different number of rows of working bodies. which determines the methods of application.

What should you pay attention to when choosing a harrow

Maybe. that for your farm the most relevant issue will be the width of the harrow - this may be related to the size of the cultivated fields. The second most important issue is the purpose of harrowing - for surface treatment , for removing weeds or for deep disking .

The third, but no less important question, is the type of harrow frame - collapsible or non-collapsible. This factor can be important if it is necessary to transport the unit on public roads, if the overall dimensions of the harrow frame are not taken into account.

Very important is the angle of attack, which is set on disc harrows. Optimal size for the front row of discs is 16 degrees and 14 for the second row. A 20-degree disc position is best for trimming. Other angles impair the quality of work. Therefore, it will be more practical to purchase a harrow with a fixed arrangement of discs in rows (in multi-row harrows). Units with adjustable angles are less reliable in operation and more difficult to maintain.

But whatever harrow you choose, it is important to remember that quick and high-quality maintenance of the agricultural unit depends on the company providing supply of spare parts for a long period of time and on the basis of long-term contracts with manufacturing companies. Then the products. purchased by you will always correspond to the quality of the originals. their delivery will be fast. and services for repairing or defecting the unit will allow you to reduce costs and losses from downtime. These are the advantages you can get from Grosber Ukraine.