Electronic Level Indicator FS Nível
This is a simple device placed under the tractor panel which, by means of light signals on a plate with an inclinometer, indicates the position of the machine, informing the operator the way to drive the tractor level in the crop. It is a very affordable equipment compared to sophisticated equipment such as GPS and with technical feasibility of field-tested functionality.
The FS Nível is a self-adjusting electronic device, consisting of a slope sensor (inclinometer), which identifies the correct position in relation to the terrain and its topographical variations. Through the reading, the equipment identifies the variations in both climbs and slopes. By means of light signals (LEDs) it guides the operator in the direction of travel, informing that the route deviations are corrected for driving the level shift position.
The FS Nível is a device that is easy to install on all agricultural tractors on the market. It is easy to operate, and its installation is technically feasible, with low energy consumption, and is resistant to water and dust.
Contour Planting for Soil Support
In properties where topographical irregularities are predominate and with slopes, contour planting shows itself as the ideal technique. The planting rows, when performed in alignment with the contour lines, end up acting as barriers to the speed of water generated by heavy rains. In this way, there is adequate time for the water to seep into the soil, preventing it from flowing on the surface, and consequently reducing the possibility of erosion.
In many places in Brazil, there is also the presence of the so-called “uphill and downhill” planting, that is, the plantation that does not respect the contour lines, on the contrary, the planting is done in the direction of the slope of the land. Thus, the lines start at the high portion of the slope ending at the low portion. This type of planting has disastrous consequences because it alone creates paths by which water can travel and gain speed by accumulating down the hill. This way, the ideal conditions for erosion, seed losses and fertilizers are created. Row planting creates exactly the contrary condition. In it, the lines intercept the runoff, slowing down, allowing water to seep in, as already mentioned. According to Embrapa Wheat researcher, José Eloir Denardin, “contour sowing consists of sowing transversely the slope of the terrain. The seeding rows, rows of positioned plants, create barriers to the free flow of the runoff, being able to increase in more than five times the water infiltration in the soil. Compared to the up the hill, down the hill sowing, contour sowing can reduce water and soil losses by more than 50% by erosion”.
GALETI, P.A. Práticas de controle à erosão. Campinas: Instituto Campineiro de Ensino Agrícola, 1984. 154p.