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第二百八十二章 无土栽培

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大麦因为具有早熟,耐寒,耐盐,耐低温冷凉,耐瘠薄的特点,因此非常的适合在贫瘠的德干高原种植。更多小说ltxsba.com?

因为衙了优良的辐射变异种子,空中农场的大麦在一年内能够成熟三次,每亩土地能够收割大约两百公斤的大麦,一年能够收割六百公斤的麦粒。

李牧走上了三楼的麦田,因为上几层的天花板已经被完全的拆除,头顶十分的开阔,阳光能够毫无阻碍的照射在麦田上。麦田的上方还架设着一套模拟阳光的led照明系统,能够在阴雨等光照不良的天气,为麦苗们提供光照。

种植大麦的耢地不得出现堑沟,要达到地面平整,因此麦田的地面平整一片。此时的大麦还仅仅是麦苗,还没有结麦穗,是一种充满了生命力的嫩绿色,一掐就能掐出水来。

李牧用手抚过大麦,正是这些植物们,养活了千千万万的人,它们是人类文明的基石。

只是还需要化肥,只有用了化肥,才能够以更少的人力,种出更多的粮食,将人力从土地之中解放出来。二战能够动如此大规模的战争,化肥与农用机械将农民们从土地上解放出来也是很大的一个因素。

他在麦田之中走着,现这处空中农场的自动化率并不低,地面上铺设着管道,控制芯片没隔一段时间,便会自动控制喷灌系统,喷洒水雾灌溉这些大麦。

“这么一块土地,大概需要多少人来照看?”

估算了一下,农田的面积大概有三千平方米,约合4.5亩,他想了想,转过头,对着站在身后的负责人王溪问道。

“底层的需要的人要多一点,需要十五人,高层的只需要人就可以了。”

已经投降了,王溪自然知无不言。

“为什么底层需要的人手要多一点?”

李牧有些疑惑的问道。

“因为风经常将杂草的种子吹到田里,这些杂草因为辐射变异的原因,生长的度非常的快,而且会与大麦争夺土壤中的养分,需要及时的清除。如果三天无人清理,这片麦田就会长满杂草了。”

王溪说着,蹲在了地上,将一棵高过脚掌的杂草苗从土壤之中拔了出来。

“这是球穗扁莎草,根部会释放毒素杀死附近的其他植物,如果今天不拔了,明天就会长到半人高,附近的大麦都会被它毒死,就连土壤也需要蒸煮过之后才能够重新拿来种植。”

“至于一些害虫,也需要人工来捕捉,等到大麦长出麦穗之后,更是有非常多的鸟类回来啄食,这些都需要大量的人工。而且这些奴隶们有非常的懒散,要用枪指着才肯卖力工作。”

“种出来的粮食,自己却吃不饱,他们当然会懒散。”

李牧说着,蹲在了地上,拔除了一根野草,握在手心揉碎。

王溪咳嗽了一下。

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