Rotary hoeing is a multifunctional agricultural tool and is actively used in growing different cultures. The popularity of the unit is due to the high efficiency of soil processing and ease of operation.
Rotary harrow hoe is designed for surface loosening, an increase in the aeration and removal of carbon dioxide from soils, as well as to destroy the filamentous seedlings of weed grass and deduct on the surface of large weeds. With its help, grain, technical and disappearance crops are harrowing both on the returns and in the post-harvest stages. The harrow of this type is well suited for treating soybeans, vegetable crops and tobacco, and processing can be performed both solid and transcendent. The use of rotary harrows is especially effective in dry areas. This allows you to increase the moisture-saving properties of soils, which, in turn, has a beneficial effect on the future harvest.
In addition, the hill harrow contributes to deep introduction into the soil of plant residues, the significantly improves fertility. The unit is very effective when the land loosening and due to the high lumen of the frame can handle the Earth with adult plants. Rotary harrow moths can be operated in all natural zones of our country with soil moisture from 8 to 24% and hardness to 1.6 MPa. The devices have proven themselves not only on flat relief, but also on Kosoyras with a slope of up to 8 degrees.
Device and principle of operation
Rotary harrow-moth consists of a carrier frame with sun-type drives connected to it, which have a diameter of up to 60 cm and are located in several blocks on the spring-loaded swing lever. The mobility of the lever is ensured by a special spring, which is affected by the lever due to its stretching and the wheels located on it, forcing the whole design to put pressure on the soil. The rays-needles, of which there are wheels, are made of spring steel, screw or scrape to the disk, and in the event of breakdowns are dismantled and easily replaced with new. Needle discs, in turn, have a moving structure, and can change the angle of attacks from 0 to 12 degrees. Rotary harrows-hoes are available in different dimensions and can have a width of 6, 9 and even 12 meters.
By the type of fastening to the Boron tractor can be trailed or mounted. The mounted attachment mainly have more light models, while heavyweights are attached by the type of trailer. And in that and in another case, as soon as the tractor begins to move, the harrows wheels are also beginning to spin and plunge into the ground by 3-6 cm. Due to its sun, the rays of the wheels pierce the solid soil crust and thereby contribute to the unimpeded penetration of the air into the upper fertile layer of the soil. Due to this nitrogen present in the air, penetrates the ground and is actively absorbed by the roots of plants. This allows partially to refuse to apply nitrogen-containing fertilizers during seed germination. Processing of sowing with needle discs of rotary boron-moths are identical to the application of nitrogen at a concentration of 100 kg / ha.
The feature of the use of the Broor-Moth is the possibility of delicate, but at the same time effective impact on the soil. For this discs install so that when immersing the needles in the Earth, their convex side looked in the opposite movement of the direction. It is the careful processing of the Earth and distinguishes rotary needle harrows-hoes from the tooth harrows, which, when the first shoots appear no longer used.
Advantages and disadvantages
Like any kind of agricultural machinery, rotary harrows hoes have their strengths and weaknesses.
The advantages include a very low percentage of plants damage during harrowing, which barely reaches 0.8%. By the way, the above-mentioned tooth models reaches 15%. In addition, the devices can be used at the early stage of the weed fight, which is impossible to do with other types of harrow. Due to this, rotary needle models are indispensable when processing corn fields, which are in the stage, when the shoots have already appeared 2-3 sheets. The harrowing in this case is carried out at a speed of 15 km / h, which allows in a short time to rid large areas from weeds.
Judging by the reviews of experienced, farmers of special complaints of the harrow of this species do not have, with the exception of too high the cost of some instances. For example, the price of the BMR-6 aggregate is 395,000, and the cost of the BMR-12 PS (BIG) model and reaches 990,000 rubles at all.
Due to the increased consumer demand, manufacturers produce many different models of rotary harrow hoe. However, some of them are more often discussed on agricultural forums, in connection with which they require separate consideration.
- Hinged model BMR-12 Very common among Russian farmers and is a truly folk model. The unit has a traditional appointment and is used in the processing of grain, disappearing, legumes, vegetable and industrial crops with a solid or inter-row method. The device can effectively prepare land under the sowing and high qualityly explode at any stage of vegetation of plants. The performance of the hoe is 18.3 hectares per hour, and the width of the capture reaches 12.2 meters. The device is designed to work at a speed of up to 15 km / h, and has the ability to connect 56 sections. The height of the road lumen is 35 cm, which allows the treatment of fields with high tops or long stems. Due to the pretty large dimensions, the width of the swivel bands should be at least 15 meters, while for the minimum width of the parties enough only 11 cm. The device has a fairly greater processing depth and is able to enter the ground by 6 cm. The weight of the device is 2350 kg, work dimensions 7150x12430x1080 mm (length, width and height, respectively). The service life of the BMR-12 is 8 years old, the warranty is 12 months.
- The model of the trailed type BMH-15T “Jealous” It has a small effect on plants, which does not exceed 1.5% at zero angle of attack, as well as increased to 16 needles on one disk. The disc has a diameter of 55 cm and is made of heat-treated alloy steel. The model is equipped with five sections, and the number of disks reaches 180. The distance between the sections is also increased and is 20 cm, despite the fact that most of the other models it is equal to 18 cm. The main difference of the gun is the high weight, reaching 7,600 kg, as well as reinforced powerful discs. This allows harmonization in extreme external conditions, for example, with a strong drought or a large number of plant residues. The unit is characterized by high performance and is able to process over 200 hectares per day.
- Hitter Harrow Mothe MRN-6 is a representative of the lung class of the hoe and weighs only 900 kg. The width of the capture is 6 m, and the performance reaches 8.5 ha / h / h. The device is capable of processing the soil at a speed of 15 km / h and delved into the soil at 6 cm. The number of needle discs is 64 pieces., and aggregation can be carried out by MTZ-80 or any other tractor with a similar type and chassis size. The service life of the model is 10 years, warranty – 24 months. The unit is characterized by good accessibility of spare parts and high maintainability.
On the peculiarities of rotary boron-hog, see the video below.