藻类肥料 – 1 级

10-09-2025 07:00

欧洲的科学家们正在尝试一种新的藻类肥料。

藻类生长在牛奶厂的脏水中。它们吃掉废物,然后变成粉末。这种粉末含有氮,有助于植物生长。当农民将其与普通肥料混合使用时,可以减少 25% 的矿物肥料用量,但仍能获得良好的收成。

藻类肥料见效慢,因此农民必须做好计划。但它易于移动,适合人们无法使用污水的地方。

在西班牙,奥伦塞一家大型水厂的工人从脏水中提取氮和磷。他们将其制成肥料,供农场使用。这些想法既能帮助自然,又能节约能源,还能让欧洲减少对其他国家的依赖。

您可以在第 3 层次部分观看原始视频。

奥伦塞工厂的工人从脏水中提取哪两种营养物质来制造肥料?

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