EFFECTS OF MINERAL AND ORGANIC FERTILIZATION ON THE GROWTH OF SPONDIAS MOMBIN IN AN AREA OF ENVIRONMENTAL RECOVERY IN THE AMAZON REGION

Spondias mombin L. (Tapereba) is a species used in degraded area recovery programs in rainforests for the maintenance of the ecosystem. The objective of this study was to evaluate the differences in the height, waist diameter, and mortality of Tapereba submitted to different doses of mineral and organic fertilizers in a recovery area in the southeastern region of Para State, Brazil. The experimental area was divided into 4 blocks of 1 hectare each, composed of 25 planting rows with 25 plants in each row, totaling 625 plants∙ha -1 . The treatments applied were: T1 - only hydrogel; T2 - cattle manure + hydrogel; T3 - cattle manure + 150 g NPK (04:14:08); T4 - 1 L cattle manure + 450 g single superphosphate (SSP) + 120 g NPK (04:14:08); T5 - 1 L cattle manure + 300 g SSP + 50 g NPK (04:14:08) + 120 g NPK (04:14:08). The measurements were conducted 12, 240, and 330 days after planting. The following parameters were measured: ground-level diameter (GLD), plant height (PH), and mortality rate. We noted statistical differences in GLD and PH between treatments at different evaluation periods. The GLD and PH of T5 were 14.68 mm and cm 79.58, respectively. During the experimental period, Tapereba had a mortality rate of 44.78%, the average annual increase in GLD and PH was 9.41 mm and 18.91 cm, respectively. At 330 days after planting, the T5 treatment elicited the highest average plant height for the seedlings in the forest restoration project.