Evaluación del efecto agronómico del biosólido procedente de una planta de tratamiento por digestión anaerobia de residuales pecuarios en el cultivo del frijol (Phaseolus vulgaris L)

in the biofood research center carry up the investigation about agronomic biosolids effect, obtained from a wastewater treatment by anaerobic digestion of livestock waste, in bean (phaseolus vulgaris l.) phenological indicators, var. ？milagro villaclare？o？, used a planting frame 0.90 x 0.07 m (14.3 plants.m-1), from december 4, 2009 in red ferralitic soil (nitisol), ph:7.3 and containing p2o5 and k2o5 of 17.3 and 48.30 mg.100 g-1, respectively. used a randomized block design with three treatments (dose: 0.0; 6.8 and 9 t.ha-1) and three replicates (nine experimental units), each plot had an area of 40 m2, the biosolids are applied before planting in the final groove. the diameter of the stem after 40 days showed significant differences (p<0.01) in treatments with application of sewage sludge, similar behavior was achieved at the height of the plant from of 32 days after the establishment, reaching 65 cm in the fourth quarter. the number of pods per plant and grains per pod also showed statistical differences in the first case, the high application of sludge compared to other treatments and the second case the two applications compared to control. the treatment of 9 t.ha-1 gave the highest yield (2.40 t.ha-1) than the control in 0.80 t.ha-1.