Soil bioactivator in the development of corn plants

Resumo

Corn is a plant that requires significant concentrations of phosphorus (P) to complete its development. The objective of this work was to verify the efficiency of soil bioactivator (Penergetic K®) associated with simple super phosphate applications in the phosphorus release adsorbed to corn plants. The research was conducted in a greenhouse, in a randomized block design with three replications, arranged in a 4 x 2 factorial scheme, with four doses, with and without bioactivator addition (600g ha-1), totaling eight treatments in 24 hours. Plots: 0% single superphosphate (with and without bioactivator), 25% single superphosphate (with and without bioactivator), 50% single superphosphate (with and without bioactivator) and 100% single superphosphate without bioactivator. The plots consisted of 10 dm3 pots with two plants per pot (Biomatrix 2b655 hybrid). The parameters related to the characteristics of vegetative growth (plant height), root length, root dry weight and aerial part dry weight were evaluated. The results were subjected to analysis of variance using the 5% Scott-Knott test with the aid of SISVAR® software and then plotted on graphs for analysis of the results. The application of Pernergetic K® soil bioactivator did not interfere with the initial development of corn crop.