Evaluación del contenido de nitrógeno y fósforo del suelo y su correlación sobre el estado nutricional de las plantas de Limoncillo de la especie Siparuna muricata

Abstract

Abstract:The main objective of this study was to determine the nitrogen and phosphorus content of soils and their correlation with the nutritional status of lemongrass plants of the Siparuna muricata species. For which 29 leaf samples and 29 soil samples (at a depth of 0-20 cm) were analyzed, obtained from five different geographical zones Villonaco, Chuquiribamba, Yangana, Celica and Colaisaca from the province of Loja in southern Ecuador. The contents of macro nutrients in the plant and soils were determined by visible ultraviolet absorption spectrophotometry, the parameters that were determined were nitrogen and phosphorus. The results obtained in the study areas are: nitrogen with higher concentration in zone 5 (Colaisaca) with 1.09 ppm where levels are low and phosphorus with higher concentration in zone 1 (Villonaco) with 188.73 ppm where levels are means. In addition, correlation is observed in the phosphorus of the plant with the soil in the five study areas, on the contrary, nitrogen does not exist. Regarding the pH of the soils, the results of our study show that in the five study areas it is maintained between 5.15 and 5.86, which shows that the soil in the five zones is moderately acidic.