第191章 得寸进尺
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只有更多的基础产出,才能形成更大的经济力量,推着大宋向前迈进。
要是耕地产出跟不上人口增长,那就算唐奕玩出花来,也没用!
唐奕在后世曾经看过一个资料,说中国古代,即使将所有的耕地利用起来,但因为粮种和肥力的关系,人口上限最多就是一亿。
也就是说,中国这片土地,最多就能养一亿人。而且,这个是理论数字,真实情况是,人口过五千万,就很容易出问题了。
就好比一户人家,耕地是固定的,养三口人算富裕,养五口人算还能维持,养七口人就要饿肚子,养十口就一定死人一样!
土地的负荷有上限,就算再会持家的人也玩不转。
唐玄宗天宝年间,大中华地区有田十四亿亩,养民五千三百万,已经过了这个警戒线。
然后,经过五代的洗礼,又丢了燕云之地,终宋一朝也没恢复到盛唐时期的人口和耕地量。
到了明代,因为引入了土豆、红署、玉米等高产作物,才把理论上限提升到了两亿往上。而大明用三亿亩土地,养活了一亿两千万左右的人口,已经是个奇迹了。
清末土地总量翻了四倍,也把人口数推到了四万万!
只有当人工合成尿素、还有杂交水稻问世之后,人口才能不受土地的局限,开始飞涨。
所以,唐奕知道,增产不单单是多打粮食这么简单,而且还是最根本的问题。
他虽然是学化学的,但在这个时代不可能合成尿素,又无法远赴南美拿回那些高产作物,怎么办?只能在现有条件下提升产量,而沼气池积肥,无疑是最好的选择。
但是,真不是唐奕为了点个人利益抓着这门生意不放。想挣钱,他有一百种方法比沼气灯挣得多,关键是技术不成熟。
“不瞒陛下,现在沼气池的技术和造价就算草民放出去,也无法普及到百姓之家,造价实在太高了。”
“听范公说,大郎不是在此获利颇多吗?朕还以为,这也如醉仙一般,是无本的买卖。”
“”唐奕一阵无语。
老子是人,不是神!
“实话跟陛下讲吧,沼气灯这门生意,从两年前开始经营,到如今,获利不下十万贯!但您知道,草民投入到技术改进和研发之中的银钱有多少吗?”
“多少?”
“十三万!年前汇账,不但一分未赚,反而倒赔了一万多贯。”
“!!!”
“陛下若是不信,草民可让国舅把账目拿来给陛下看。“
唐奕一点都没说谎,一百万贯他都借出去了,还差这点东西?实在是沼气池技术不适合民间普及。
两年前初创之时,造价一百贯左右,苦哈哈的农民谁拿得出一百贯?
就算现在,唐奕投入了巨资研发,大批的顶尖匠人为了简化工艺,选择最便宜、最适合的材料,几乎是想破了脑袋,也只能是成本降到了三十贯每套。
三十贯!相当于一头耕牛的价格,又有几家能装得起?
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