Construção e avaliação de uma ferramenta manual para preparo do solo em sistemas hortículas

Abstract

The handling in gardens does not always allow the use of agricultural machinery to perform certain work stages and should mainly by the absence of specific machines of low cost and for these agricultural contracts. In this way, create forms to facilitate the work of the man of the field is of great importance for further development of agriculture and better quality of life for workers. From this, the objective was to construct and evaluate a tillage hand tool for use in horticultural areas, which were inexpensive and easy to handle. The tool is made of steel from recycled material. To evaluate the field tool, we used the following treatments: surface condition of the soil (meshed and ground soil with vegetation cover); three soil moisture conditions changed due to the pause time after irrigation (0h, 8h and 24 hours after irrigation); and two tool support basis (minor and major). Field trials were carried out in plots of 4 m long by 0.6 m wide with 4 replications. The response variables were: working capacity of the operator and time efficiency; followed by the mobilized effective depth in the soil; mobilized area; and swelling of the soil. The results showed that the surface condition of the soil interferes with the ability to work and time efficiency, and in ground straw with the surface, it is more difficult for soil handling and thus reduces the area worked per hour. There was statistical difference between the basis * moisture interactions for time efficiency, and surface soil conditions interfered with time efficiency. We recommend using the lower base due to smaller mass, and thus provides less physical worker effort.