Desenvolvimento de plantas de sisal em manejo sustentável no curimataú ocidental paraibano

Abstract

The sisal (Agave sisalana Perrine) is a plant native to Mexico, which in Brazil is cultivated in an extensive area of the Northeastern semi-arid region, mainly in the state of Bahia and Paraíba. Sisal produces hard and coarse fiber, which supplies 70% of the world market. Sisal is a source of income and employment for a large number of producers. It is an important agent of fixing man to the semi-arid region of the Northeast, as the only source of income for some workers in the region. The experiment was carried out in the municipality of Algodão de Jandaíra, in the rural Paraibano. The practice of sustainable management of production of the Sisal crop shows the producers the importance of adding new techniques and knowledge in the production of sisal, extracting the maximum potential of the crop. The experiment identified the problems of management of sisal in a field of cultivation of about 40 years that there was no management practice, in search of using techniques of sustainable sisal production practices. Therefore, we prepared the experimental area, which was composed of four replications, using a randomized block design (DBC), with five treatments, which were randomly selected. Being, T1 witness; T2 corresponds to (MCMCR) management with mucilage and replanting; T3 corresponds to (MSMSR) handling without mucilage without replanting; T4 treatment corresponding to (MSMSR) handling without mucilage and without replanting; T5 (MSMCR) without mucilage and replanting. The experimental plots consisted of 4 lines of 5 m in length and 9 m in width, thus the total area of the plot is 45 m². The variables used to evaluate the plants were plant height, number of leaves, leaf length and leaf width, which were analyzed every 60 days, totalizing four evaluations. Significant differences in time (4 epochs) were observed. For height of plants, we verified that the control presented the highest values of growth, due to the fact that the plants were old and already established, and the use of mucilage and replanting presented slow initial growth compared to other treatments, but resuming growth due to adaptation to the management, while the number of leaves stood out the fertilization with the replanting, presenting the highest values at the end of the last evaluation, width and length of leaf, it was observed that the management without the mucilage and without the replanting presented the highest means. We can conclude that the use of mucilage and replanting favors the development of sisal plants and is an alternative in sustainable management for the producer.