Harrows with spring hydrofoils (ZPG), Dnipropetrovsk region.

Harrows with a spring tooth, used for:

The most demanded in modern farming uniform distribution of harvest residues on the field;
early spring harrowing of the soil in order to destroy the surface crust and provoke the growth of weeds;
destruction of weeds in the "white thread" phase;
closing of moisture with the help of interruption of the capillary flow from the lower layers of the soil;
leveling of the arable land surface;
seeds and mineral fertilizers scattered on the field;
continuous tillage of the soil during fallow care and preparation for sowing when tillage;
collection of straw, hay in rolls.

Combine straw choppers, especially with wideharvesters, do not always optimally distribute the straw on the soil surface, which results in uneven sprouting, uneven ripening and, as a result, a significant deterioration in the quality of grain harvesting. This situation can be corrected with the help ofZPG.

Recently, there has been a tendency to increase the weediness of the fields as a result of a decrease in the volume of work on chemical protection, caused by the desire to reduce the costs of expensive drugs. Thanks to the use ofZPG, it is possible to without the use of chemicals not only qualitatively destroy weeds, but also simultaneously close moisture and ensure access of air to the seeds.

Intensive melting of snow, heavy rains in the period between sowing and the appearance of seedlings, which alternate with hot, dry weather, lead to the appearance of a soil crust with a huge number of capillaries through which water from the lower layers of the soil rises to the surface and evaporates. Incredibly, in one sunny day, up to 100 liters of water can evaporate from one square meter of land in this way.(//tractor-service.com)

In addition, the surface crust blocks the access of air to the seeds, which significantly worsens their germination and leads to partial death. On heavy floating soils, the effect of the surface crust can take on catastrophic proportions.

Soil harrowing with the help of ZG contributes to the retention of moisture in the soil, the penetration of air to the seeds and roots of plants, the improvement of air circulation in the soil, and the increase of the ability of the soil to absorb night moisture, which is formed as a result of temperature changes.

One tractor driver can transfer fuel gas from working to transport position and vice versa.

Design advantages of ZPG in comparison with harrows BZSS 1.0 and ZBNTU 1.0:

significantly higher soil loosening quality thanks to the vibration action of elastic teeth;
non-clogging of teeth due to the vibration action of elastic teeth;
gentle processing, provided by the possibility of changing the angle of inclination of the teeth.

Design advantages of ZGD in comparison with other harrows with an elastic tooth:
simplicity and speed of adjusting the angle of inclination of the teeth;
harrow tooth is made of high-quality special steel with special heat treatment;
high quality and reliable construction.