ABSORPTION OF PHOSPHORUS BY SORGHUM PLANTS TREATED WITH HOMEOPATHIC PHOSPHORUS AND TERMITES MOUND NET
J.O.Novelino; C.M. Bonato; B. Reis; A.S. Muniz; R. Carrenho
ABSTRACT: This study was conducted in a greenhouse to evaluate the influence of Phosphorus homeopathy dinamizations and doses of termites mound net on absorption of phosphorus in sorghum plants. The experimental design was completely randomized in a factorial 4 x 5, with four replications, whose factors were four levels of material of the card (0, 25, 50 and 75 g dm-3) and five levels of dynamizations of homeopathy Phosphorus (0, 6, 12, 18 and 30CH). The doses of nets material were homogenized with subsamples of 3.5 dm-3 of soil, put in plastic pots, which were grown, after thinning, nine plants of sorghum (Sorghum bicolor (L.) Moench) during 60 days after the sowing. Volumes of 1 mL of each homeopathy Phosphorus were solubilized in 1000 mL of water and this solution were applied weekly 250 mL per pot until the next harvest. After harvest, it was evaluated in shoot dry matter the P concentration and accumulation. Only homeopathy Phosphorus influenced significantly (p <0.01) the P concentration and accumulation in shoot dry matter. Through the regression equations adjusted were estimated increases in the P concentration (72%) and P accumulation (200%) in relation to the control by applications of homeopathy Phosphorus 30 CH. It can be concluded that linear increases in the P concentration and P accumulation in shoots of sorghum occurred by levels of dynamizations of homeopathy Phosphorus.
Key-words: Sorghum bicolor (L); solution homeopathy, organic fertilization, shoot P.