Effect of two minimized farming systems on porosity of a Fluvisol for the cultivation of bean (Phaseolus vulgaris L.) (Original)

Abstract

The present work was carried out in the UBPC Antonio Maceo Grajales (El Palmar), located in the Agricultural and Livestock Company Paquito Rosales in the province of Granma, Cuba. It was carried out with the objective of evaluating the effect of two minimized farming systems on a Fluvisol for the cultivation of beans, taking into account the behavior of humidity and porosity of the soil and agricultural yields of the cultivation. The treatments of study were: T1 for minimized farming and T2 for reduced farming. T1 consisted of the plowing of the soil with multi-plowing device followed by one pass of disc harrow. T2 is considered a variant of the previous treatment followed by two perpendicular passes of disc harrow. As results T1 obtained the best behavior in maintaining a better conservation of the soil in the profile of 0-30 cm depth. Before the cultivation was finished the highest humidity highest average porosity of the soil: 52,72 % were obtained.T1 facilitated better root penetration and cultivation development, reaching an agricultural yield of 1,00 t ha^-1, 30 % higher than the one obtained by T2.