Stability and holomorphic connections on vector bundles over LVMB manifolds

We characterize all LVMB manifolds $X$ such that the holomorphic tangent bundle $TX$ is spanned at the generic point by a family of global holomorphic vector fields, each of them having non-empty zero locus. We deduce that holomorphic connections on semi-stable holomorphic vector bundles over LVMB manifolds with this previous property are always flat