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第629章 好下属(2 / 2)

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牛拉着耧车前进的时候,三个耧脚在平整好的土地上开沟播种,理论上来说,是可以同时进行覆盖和轻压,一举数得,省时省力。

可是,正应了那句话,“理想很丰满,现实很骨感。”田地虽然是平整好的,牛也拉着耧车走了。但是,摇动耧车的时候,这个幅度很难把握好。

摇重了,一个地方直接七八九十颗豆子都不止。摇轻了,豆子又下不来。这样肯定是不行的。

而且,锥子上拖着用来覆盖细土的小石块,因为只是用绳子捆住的,很容易掉落,也很容易磨损,非常影响进度。

这样的耧车,效率肯定不行。于是,把耧车重新拿回宅子,进行修整。可是,怎么修正,花蕾却有些一筹莫展。

前世自己也只是在农具博物馆看过耧车的外形,也大致了解其工作原理。可是,要如何省时省力又精准的做好这件事,花蕾觉得,好像超出了她的能力范围。

现在耧车出现的问题,她好像没办法解决。看着有些泄气的花蕾,容瑾接过了改造耧车的事情。

覆盖细土的石块,还是比较容易解决。把原来的石块换成了带孔的石陀,用绳子穿孔而过,就根本不会掉落了。

覆盖的问题解决了,他开始解决撒种太多的问题。他先是把漏斗下面的口子改小了一圈,然后去试了一下。

发现不行,虽然不会一下子出来八九十颗豆子了,但是,撒种的速度却明显的太慢了,牛已经走慢了一半的速度,才能正常播种。这样效率太低了,不行。

于是,容瑾和赵大叔两个又把耧车拿回了宅子,商量试验了很久,想出了在漏斗的口子处装一个活动的小木板。

口子大小还是改回原来的直径,耧车前行的时候,一颠簸,木板也跟着震动,豆子就掉了下来。

木板的震动随着耧车的前行频率,自然而然的开开合合,豆子也随着掉落,控制好牛的速度,豆子就很均匀的了。

修整好的耧车重新拿到了田庄里,开始试验。这下,比一开始的耧车好了很多。前面牵牛的,只要根据后面扶耧车的人提示,赶牛就可以了。

下面的小石块也基本上都能完成覆盖细土的任务,偶尔遗漏的,只要扶耧的人用脚帮一下忙就可以了。

唯一的要求就是拉绳子的人要根据实际情况保持好频率就可以。牛走的快,绳子拉快一点。牛走的慢,绳子频率低一些。等有经验了,配合好了,就没什么问题了。

于是,又让赵大叔带着木材坊的人制作了几架耧车出来,试验了一下,基本都能完成播种豆子的任务。

而且,比人工用手点播的速度可是快了一大截,虽然说日播一顷是有些夸张的,但是,效率确实不错。

于是,花蕾把耢,方耙,还有几架耧车,都送到了章侍郎面前。

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