种植马铃薯时,利用双铧犁每隔一行犁沟种植一行块茎,是很方便的,第一只犁用来复盖块茎,第二只犁用来填平第一只犁旁边的不利用的犁沟,同时开出一条新的犁沟以便种植块茎。伹是,用双铧犁播种、垄沟塇土不够,播种深浅也不好调节,为弥补这些缺点,河北省尚义县半个碌(?)农业社创制了双轮双铧犁播种用的杷土器,试用结果很好,现介绍如下,以供参考。 When planting potatoes, it is convenient to grow a row of tubers on every other row of furrows using a double-plow, the first one covering the tubers and the second one filling the unused plow next to the first one Ditch, at the same time out a new furrow to grow tubers. In order to make up for these shortcomings, half a common (?) Agricultural Society of Shangyi County, Hebei Province, created a double-wheel dual-purpose plow sowing seeds Earthenware, the trial results are good, are presented below, for reference.