Desempenho da beterraba sob diferentes lâminas de irrigação e doses de pó de rocha adicionadas ao solo

In the high valley of Itajaí, beet is largely used in small farms as an alternative to income generation. It is believed that in many properties irrigation occurs without the control of the water applied to the crop, directly affecting the cost, providing possible damage with excess or lack of water. In the region, the use of rock powder, originating from slate, is being widely used, with little research done so far. The research carried out was aimed at analyzing the effect of different irrigation slides applied daily on the beet crop with doses of slate powder added to the soil. Twelve treatments were performed, three of which were irrigation slides. Two slides were calculated from the Hargreaves and Samani equation and a 3 mm fixed blade with 4 doses of rock powder. The cultivation was carried out in a greenhouse of the IFC Rio do Sul. The harvest was effected 66 days after transplant, and several morphological and qualitative data of the plants were evaluated. Analyzing the parameters, it can be affirmed that the best irrigation blade was the one corresponding to 130% of evapotranspiration of the crop. Regarding rock dust, no significant correlation was found to the development of the parameters considered.