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第103章 童言滴灌(1 / 1)

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王山长提出的问题颇具难度,涉及朝廷。

春来耕田遍沙碛,老稚欣欣种禾麦。

麦苗渐长天苦晴,土干却缺锄不得。

新禾未熟飞蝗至,青苗食尽馀枯茎。

捕蝗归来守空屋,囊无寸帛瓶无粟。

十月移屯来向城,官教去伐南山木。

驱牛驾车入山去,霜重草枯牛冻死。

艰辛历尽谁得知,望断天南泪如雨。

天山以南为农耕,天山以北的五胡为游牧,胡人吃肉“皆半熟,以未熟者耐饥,且养人也。肉之汁即以煮粥,又以烹茶,茶肉味相反,彼亦不忌也。……食肉不用筷,手持肉一大片,半入口中,余以刀切断而食之。用刀之巧与汉民之用筷无异也。蒙古人食兽肉,饮羊酪,其量之多实可骇,一餐羊数斤者,常量也,多者一昼夜食羊一只。又能绝食者数日不见饥色,一旦就食,则一人兼数人之食,至其一人一日之食料,必羊腿一只是为常例。”为了粮食和生活必需品,时常南下骚扰。

西北地区自古以来就干旱少雨,风大沙多,夏热而短,冬寒且长,日照充足,昼夜温差很大,混住在一起的异人较多,人乱且杂,常年的兵乱之地。

麻、黍、稷、麦、菽这几种农作物不仅需要耐旱,而且其生长周期还得相对较短,所以一直都是西北的主要粮食,但是父亲说过当年有人带回了几种粮食种子,产量高,耐寒,其中有一样就是外绿内黄,叫什么番瓜的,蒸熟即可,味道还不错,香糯可口,饱腹,自己当年吃过,可是离开京城后就没再见过。

“老师,学生在家的时候曾目睹过小侄女在后院菜地里所做的一个小游戏,当时便觉得饶有趣味,如今想来,如果能够善加利用这种方法,或许真有可能解决我们当下面临的用水难题和耕地肥力的问题!”

听到这里,王山长不禁微微挑眉,面露疑惑之色道:“哦?解决用水问题?要知道西北地区,水资源向来匮乏,用水一直以来可都是头等大事!极度缺水不说,大旱更是家常便饭。若真有法子能解决此等难题,那可真是大功一件呐!”

“小侄女嫌家中后院那块菜地每天都需耗费时间去挑水浇灌,实在麻烦。于是她央求家中的几位侄子去山上砍伐了许多竹子回来。他们将这些竹子首尾相连,从山上一路铺设至菜地,待到一切准备就绪之后,小侄女又亲自动手,在每根竹子上精心钻出了一个个细小的孔洞。如此一来,当山上的水流经这些竹子时,便能自然而然地从小孔中流淌而出,均匀地洒落在菜地上,无需再像以往那般辛苦地挑水灌溉!还做了个简易的阀门控制灌溉的时间。”

王山长微微颔首,他那双深邃而睿智的眼眸凝视着远方,仿佛已经看到了那片即将被改造的土地。只见他缓缓抬起右手,轻柔地抚摸着下巴处那长长的胡须。

过了片刻,他才缓声开口道:“滴水灌地!唔,此计甚妙啊!这贺兰山一带向来以水草丰美着称于世,尤其在其西侧,更是蕴藏着池盐这样极为宝贵的资源。倘若我们能够巧妙地利用贺兰山上那终年不化、堆积如山的皑皑白雪,将其所融化而成的清澈雪水引下来,用于灌溉土地,并且采用滴灌技术,想必一定能够取得显着的成效。需知此处虽然白日里阳光炽热,气候干旱异常,但到了夜间,气温却会骤降,寒冷至极。那么,我们是否可以开动脑筋,寻思出一些独特的办法,来留存住夜间空气中弥漫的大量水汽呢?比如,可以考虑利用当地现有的材料,制作一些简易但实用的引水装置。待夜幕悄然降临之际,便能将那些珍贵的露水悉数收集起来,而后再通过精心设计的引水管道或者沟渠等设施,将这些水汽引导至麦田之中,如此一来,不仅可以有效地缓解麦田的旱情,更能为庄稼提供充足的水分滋养,从而有望迎来一个丰收之年,此法应该与工部好好商量一番。”

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