Características estruturais de desmanthus pernambucanus em função da cobertura morta com folhas de nim e ciclos de corte em ambiente Semiárido

Abstract

The research about forage species adapted to semi-arid conditions is very important, considering that this region has dry periods and at this moment, is required for alternative of feeding for herds. However, to use species such a jureminha, is required to know about the managemant and cultivation to succeed in this production. However, the aim of this study is to evaluate the structural characteristics of jureminha cultivated under Semiarid. The experimente was conducted in the Federal Rural University of Pernambuco – Academic unit of Serra Talhada in the period from march to august, 2017, in a completely randomized design with three replications, where the treatments were the presence or not of dead cover based on neen leaves. The variables that were measured: plant height; secondary branch length; sheet length and width; stalk diameter; diameter of the secondary branch; growth rate of these structures; number of leafs and leaf longevity, number of shoots and reproductive structures (pods, flowers and flower bud). The treatments with and without mulches of Neen leafs had an effect on the variables: stalk diameter, that was 28% higher without mulches of Neem; secondary branch length 37% higher with mulches; sheet length and leaf longevity that was 19% and 15% higher respectively with mulches. The cutting cycle showed greater effect than mulch, reflecting a need for further studies to determine the best frequency and cut intensity to be adopted for the mimosa.