EVALUATION OF SWINE ORGANIC MATTER ON COMMON BEANS (Phaseolus vulgaris L) YIELD

An experiment was carried out to test the effect of organic manure (swine slurry) on common beans (Phaseolus vulgaris L.) grain yield, CV. Carioca, on a red latossol, with low fertility, high acidity (pH = 4.8), medium aluminum toxicity (0.5 me/100 ml), medium contents of P (6.1 ppm) and K+ (53 ppm) and low contents of calcium plus magnesium (1.1 me/100ml) at the Federal University of Goiás, School of Agronomy, Goiânia, Goiás. A randomized block design with four repetitions was used and the treatments: KPK dressing (T1); liming (T2); swine slurry (T3); NPK dressing + liming + swine slurry (T4) and NPK dressing + liming. The following average grain yield (kg/ha) were obtained: T2 (liming) = 400.7; T1 (NPK dressing) = 537.8; T3 (swine slurry) = 576.4; T5 (NPK dressing + liming) = 577.1 and T4 (NPK dressing + liming + swine slurry) = 616.4. The "complete" treatment (T4) showed the highest grain production, whilst the others showed no significant differences among them. However, the treatment with swine slurry gained a productivity of common beans equivalent to that obtained by conventional NPK dressings used in Brazil. Due to its easy obtention, swine slurry can be used as an alternative economic choice for little growers to fertilize their common beans crops.