第七百九十三章想占朕的便宜(1 / 2)

统计大明 怕起重复 1121 字 2022-05-08

朱慈烺发现自己还是小看了古人的智慧,原本以为蝗虫趋光性用火灭蝗是后世科学研究的发现。

没想到古代百姓已经发现了这个特点并且投入实用,并且发现了优缺点。

确实大规模的烧荒容易引起火灾,特别是干旱的季节,天干物燥,本来就要小心火烛,结果你这边一点火可不整个森林都给你烧没有了。

平原地区百姓做饭其实主要靠农作物秸秆和少量的树枝杂草,所以烧东西都没得烧,把秸秆烧了,那煮饭用啥?吃生的的啊?

朱慈烺继续听着,梁为岗继续说道:“第三种就是挖沟掩埋法,这个也是治理蝗灾的主要方法。

利用的同样是蝗虫不知转向的特性,在蝗虫将要到达之前,在地上掘沟,沟宽两尺以上,对设门板阻挡。

将蝗虫赶入沟渠,然后在覆土掩埋,此法虽然耗费人力,但是确是灭蝗最有效的办法。

从以往经验来看,只要用人得力,官员百姓用命,一般蝗灾至少能下降数等。

当然有些时候此法也跟火烧法共用,收效也很好。

第四种就是排除虫卵法,就像陛下说的那样,蝗虫喜欢落在慌田或者河床产卵,因为这些地方水草丰富,可供幼虫取食。

可以命人跟踪查找飞蝗飞落之地,然后掘除虫卵,此法虽然看似繁复,但是一旦掘除一枚,则相当于消灭上百飞蝗。

可令官绅遣人专办,当年徐阁老有言官绅各管其地,有蝗虫落而捕灭不及已至成灾者地主杖一百。

第五就是陛下说的以鸡鸭等治蝗虫之法,鸡鸭喜食蝗虫,一日吃数百,而且母鸡母鸭吃蝗虫可两日产三蛋,鸡鸭肥硕,确实既能解决蝗虫又能让百姓有一笔收入。

有此无法共用,只要官员不玩忽职守,那么蝗虫就不会成灾,即使成灾也不会危害波及广大。

蝗虫初为蝻,初生如栗,数日大如蝇,旋即跳跃生翅飞翔,而后产子,子十八日复为蝻,如此往复,一月陡增数百倍,数月之后方灾大不可治。

如果蝗灾初起就积极灭蝗,杀一只等一杀一千,不仅更容易防灾,而且所废人力物力最少。”

朱慈烺听完之后满意的点点头:“看来用你来当这个灾害司的司正是用对人了,这些办法综合来用,只要有效就要推广。

另外你只说蝗虫聚集成灾之后有毒,到底多大的族群有毒?哪些蝗虫有毒?还是所有蝗虫都会有毒?这些都要仔细研究。

在没有研究清楚之前多派人观察提醒,确保百姓不因误食而导致生病。

你说的徐阁老的除蝗疏朕也看过,其中徐阁老说他在天津时,也遇到过蝗灾,并且他也捕食,百姓也都捕食为粮食,都没有发现任何问题。

由此看来这个并不是绝对,你们还需要仔细观察实验。”

梁为岗拱手:“确实如此,蝗虫初发的时候,只要没有成群,都没有毒,只有成群之后才会产生毒素。

成群之后这些蝗虫不仅有毒,而且味道也变得难以下咽,百姓中都流传花蝗不可食,就是这个原因。”

朱慈烺叹了口气:“你拟定一个奏本朕准了此事,你还有其他事情没有?”

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