Influência de doses de cinza de eucalipto em plantio de capim massai (Panicum maximum cv. Massai)

Abstract

Fertilizers are the main operational cost of agricultural producers, in view of this problem alternative and cheaper ways to source nutrients for crops are sought. An alternative source of nutrients is eucalyptus biomass ash, which has gained great prominence over the years. With this, the present work had as objective to evaluate the effect of the doses of incorporated eucalyptus biomass ash and as cover in the development of the Massai grass. The experiment was conducted at the Federal Institute of Piauí - Campus Uruçuí. The following doses of eucalyptus biomass ash were compared: T1 - (0 t/há), T2 – (2,5 t/há incorporated), T3 – (2,5 t/há roof), T4 – (5 t/há incorporated), T5 – (5t/há roof), T6 – (7,5 t/há incorporated), T7 – (7,5 t/há roof), T8 – (10 t/há incorporated) e T9 – (10 t/há roof). The design used was completely randomized with nine treatments and four replications. The variables analyzed were: Plant height (AP), shoot fresh mass (MFA), shoot dry mass (MSA), root length (CR), root volume (VR), root fresh mass (MFR) and root dry mass roots (MSR). Based on the characteristics analyzed, the zero dose was the most suitable for the development of Massai grass. Comparing the coverage doses, the incorporated doses presented more expressive results