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东风-12型手扶拖拉机在进行田间作业时,如何选择好前进速度,应根据土壤类别、地表状况、土壤含水量、功率消耗的承担能力及各地的相应农艺要求等因素来确定,以保证作业质量和机具生产效率。现介绍一下手扶拖拉机各种田间作业速度的选择方法。1犁耕速度的选择对犁耕的要求是:不重耕、不漏耕,不立垡、不回垡,耕深达到农艺要求。与手拖配套的是1LS-220型单间双铧犁,其犁耕地宜选用Ⅱ、Ⅲ档前进速度。
How to choose a good forward speed in the field operation of Dongfeng-12 walking tractor should be determined according to factors such as soil type, surface condition, soil water content, power consumption affordability and corresponding agronomic requirements of all places to ensure the operation Quality and machine productivity. Now introduce a variety of field tractor walking tractor speed selection method. A choice of plowing speed plowing requirements are: no heavy tillage, no tillage, not stand out, do not retreat, farming to achieve agronomic requirements. And hand-trailer supporting the 1LS-220-type single double-plow, its plowing should choose Ⅱ, Ⅲ file forward speed.