Cultivo orgânico de pimenteiras malagueta sob níveis de água residuária e doses de esterco bovino.

Abstract

The semi-arid region is characterized by the irregular rainfall distribution and the occurrence of prolonged droughts, thus the reuse of water and the use of bovine manure in the organic substrate becomes a possibility for the cultivation of pepper plants, supplying the water and nutritional needs. In this context, the present research was carried out with the objective of evaluating the growth and development of phytomasses and fruits of chilli pepper plants (Capsicum frutescens L.) under treated wastewater levels and dosages of tanned bovine manure. The experiment was carried out in the open air area belonged to Campus II of the Universidade Estadual da Paraíba, located at Lagoa Seca - PB, with a randomized block design in a factorial scheme (3 x 6) + 1 (control with water supply and absence of fertilization including tanned bovine manure) with 3 replicates and 2 plants per repetition. The treatments corresponded to three levels of water requirement, using water based on the water need for the crop (NH), being: 100% NH (N1), 75% NH (N2) and 50% NH (N3), combined (20% manure and 80% soil), D4 (30% manure and 70% soil), D2 (10% manure and 90% soil) Soil), D5 (40% manure and 60% soil) and D6 (50% manure and 50% soil), on a volume basis, which were compared with the control. Germination, growth and development, phytomass production, total pepper production, water consumption (CH) and water use efficiency were evaluated. The data were submitted to analysis of variance by the 'F' test and when significant were compared by the Tukey test (p<0.05) and regression analysis. In studied pepper plants treated with 50% manure the highest growth and development averages were observed. The highest water consumption was accounted for in the pepper plants irrigated with 100% of the water requirement, equivalent to 1087.3mm, but the water levels that allowed the greatest production and water efficiency were 50 and 75%NH. On average, the fertilization with 50% of cow manure was among those studied which brought the greatest benefits to the crop.