Kubota NSP-4W Rice Transplanter Kubota NSP-4W Rice Transplanter The Kubota model NSP-4W walk-behind rice transplanter is the ideal choice when taking the first step towards achieving outstanding operational efficiency and enhanced profitability through mechanization. Of the introductory-type, this model features a versatile size that is easily operated with agility and effectiveness even in confined spaces. this translates into incomparably higher operational efficiency with significantly reduced labor costs.