Produção de fitomassa por plantas de cobertura e seus efeitos em atributos do solo

Abstract

Associated with the positive use of particle formation cover plants and improvement of the differentiating objective effect machining attributes of cover mixes compared to single black sphere impact, in soil structure attributes and in the production of phytomass The experiment was located in Jardim Alegre, PR under a randomized block design with 3 treatments and 7 replications. The treatments consisted of two mixes of cover crops (Mix 1 and Mix 2) and black oat cv. Embrapa 139. After 97 days, the production of wet and dry phytomass was evaluated, and at 100 DAS the total density and porosity of the soil at depths of 0.05 to 0.10 and 010 to 0.15 m. The results indicate that the use of a cover crop mix containing buckwheat, sudan grass and forage radish (Mix 1) results in a greater contribution of plant residues to the soil. The use of cover formed by oat, white oat, rye, Japanese radish and forage radish (Mix 2) mixes a smaller amount of residues, compared to single black oat. Soil density and porosity were not presented in width and depths. of soil. In this sense, it appears that at 100 DAS there are no effects on the physical attributes of a long-term study, demonstrating the need for long-term studies on the effect of coverage for these attributes.