Manejo de cobertura de solo na produção de brócolis

Abstract

The broccoli crop has important nutritional values for the human body and health. The objective of this work is to test different types of ground cover in the production of broccoli, as alternatives to producers, as this technique is not commonly used in the crop. The management of soil cover, either with the use of Mulching plastic, or with black oat straw, or other coverings, improves the cultivation environment, providing physical and chemical improvements in soil characteristics, such as reducing erosion, maintaining temperature and moisture, reducing the loss of fertilizers and correctives by leaching, in addition to acting as a physical barrier against weeds. The experiment was carried out on the property of Hortigranjeiros Guido Kremer, in Caxias do Sul/RS, using broccoli from the cultivar Legacy. The evaluated treatments were: a) planting on white Mulching plastic; b) planting on black oat straw (Avena strigosa Schieb) and c) planting on bare soil. A randomized block design with 3 treatments and 8 replications was used, and each plot consisted of 133 plants, with 10 plants being randomly chosen for evaluations. The parameters evaluated were: stalk size; size and weight of heads and sanity. The data obtained were subjected to analysis of variance and means compared by Tukey test at 5% probability. According to the results obtained, it was concluded that the cultivation of broccoli on Mulching plastic showed better vegetative development of plants in relation to stem, head size and head weight. [resumo fornecido pelo autor]