Uso de pó de rocha, termofosfato e adubo orgânico na produção de hortaliças

Abstract

In ecological managements of agro-ecosystems, among the main objectives is to ensure the maintenance of fertility in the long term soil without the need to continually put external inputs. Enabling biological processes that ensure the continuous recycling of nutrients in organic forms. The experiment was conducted in the resettlement area of MAB / Erechim-RS, the climate is classified as Cfa, which is characterized as humid subtropical. The soil of this area is classified as Rhodic alumino. The treatments had the following compositions, T1 witness - without application; T2- powder-rock (2 ton / ha); T3 - thermophosphate (0,588ton / ha); T4 - organic fertilizer (45 ton / ha); T5 - powder-rock (1 ton / ha) + thermophosphate (0,294 ton / ha); T6 - powder-rock (1 ton / ha) + organic fertilizer (0,0225ton / ha); T7 - thermophosphate (0,294 ton / ha) + organic fertilizer (0,0225ton / ha). The analysis of the collected plant consisted in taking them to the laboratory, where the amount of dry matter was evaluated in an oven with forced air circulation at 65 for 48 hours to quantify the production by treating used, furthermore, it was evaluated the average head diameter, stem diameter and number of leaves and green mass. It concluded that the use of thermo + organic fertilizer influenced for the varying number of leaves per plant and green mass, the remaining variables there was no variation. Based on the results obtained from this project we consider it necessary to carry out evaluations on the second crop in the same area with the same cultivar to evaluate residual effects of the applied treatments.