MRN Rotary Hoe, Dnepropetrovsk region.

Rotative Hoe MRN (rotary hoe harrow) MRN model
Harrow-Hoe Rotary MRN
Harrow-Hoe Rotary MRN model MRN, the working parts of which are sun-shapedwheels with a diameter of 480 mm, of a special shape, assembled in blocks in the unit. The main purpose of BMR is the pre-emergence and post-emergence harrowing of field crops (cereal,fallow, technical crops) with the aim of surface loosening and aeration of the soil, destruction of filamentous weed seedlings.
Principle of operation When the tractor is moving, the wheels begin to rotate spontaneously (like disc guns), sink into the soil, to a depth of 3-5 cm, due to which the surface crust is destroyed. At the exit of the wheel beam from the ground, a micro-explosion is produced, thanks to which air is injected into the soil. As a result, the nitrogen contained in the air passes into the fertile soil layer and is absorbed by plants. This makes it possible to refuse to apply nitrogen fertilizers. The working organs of the hoe create an ideal background for the initial development of the root system of plants, the upper layer of the soil is well mulched, the soil crust is destroyed, thereby preserving moisture. Up to 0.8% of cultivated plants are damaged during BMR operation. For comparison, when processed with tooth harrows of the BZSS type, damage is 10-15%. At the same time, threadlike roots of weeds are destroyed up to one hundred percent at speeds of up to 15 km per hour. Timely use of the harrow makes it possible to completely abandon herbicides. With the appearance of a monolithic soil crust, on early seedlings of cultivated plants, for example, corn at the stage of 2-3 leaves, the use of tooth harrows becomes impossible, and then the efficiency of using a hoe increases dramatically.
As a result of the experiments with the direct application of BMR, data and positive results were obtained. In the phase of spring tillering, a comparison was made on the percentage accumulation and content of nitrogen, namely in the available form, for winter wheat from the air, in comparison with the plot where ammonium nitrate was applied, at the rate of 20-21 kg d.v./ha or 60 kg/ha. Selection of plants for analysis was carried out on the 15th and 35th days after treatment. The entire aerial part of the plant was analyzed by the Kjeldahl method.
Experience Nitrogen content in %
of dry matter
on the 15th day Nitrogen content in %
of dry matter
on the 35th day
With the addition of ammonia
nitrates 60 kg/ha 3.7 1.7
One-time processing
BMR 3.8 2.1(//tractor-service.com)
According to the results of the analyses, it is clear that the nitrogen content in winter wheat plants is at the same level of availability. It should also be noted that thanks to BMR, the destruction of annual weeds, in filamentous form, was 85%, the aeration of the soil increased significantly and the dense, superficial crust was destroyed. And that's in one pass - fuel savings on the face.
The effect with the use of a hoe was similar on corn crops, the "stilt" stage and in the 3-4 leaf phase, as well as on sunflower crops after sprouting (two false leaves) and in the 2-4 leaf phase. Destruction of weeds, in the thread phase 90%, seedlings 25%, damage to cultivated plants 0.7%.
The use of BMR on winter wheat (predecessor of sunflower), in the phase of the beginning of tillering and full tillering, sown according to zero technology, made it possible to obtain an increase (in experimental fields) of yield by 5.6 tons/ha, saving: seeds by 10%, nitrogen fertilizers by 100%, potassium by 100%, phosphorus by 75%. Fuel savings amounted to 20%.
Technical characteristics of the rotary harrow - hoe:
Working speed, km/h: 15-20;
Working width of capture, m: 3; 6; 9; 12
Productivity, ha/shift: up to 100;
Mass, kg: 430; 1050/1200; 1860, 3000
The diameter of the impeller, mm 530
The number of working fingers on the wheel, pcs. 16
Bearing in the wheel hub roller conical 30204, pcs. 2
Bearing in the pendulum 60204, pcs. 3
Required power of the tractor, hp, 25-100
Maintenance staff, people: 1 (tractor operator).
Our contact telephones are 097-693-89-55, 066-024-43-93 Viktor, сайт компании agrompk.com.ua