氮肥磷肥 在我们日常生活中在什么里含有这两种肥料?
推荐回答(2个)
一、氮肥原料:
煤或天然气、空气、水,天然气、煤炭、石油是生产化肥的三大原料,通常被称为气头、煤头、油头三类,近年来,由于石油和煤炭价格的升幅远大于天然气,故按成本优势排列为气头、煤头、油头。
二、磷肥原料:
磷肥生产的主要原料是磷矿和硫酸,随着中国磷肥工业的快速发展,磷肥生产原料的供应已经显现紧张局面,不可再生的磷矿资源已经成为中国重要的战略性资源之一。中国生产硫酸的硫资源主要来自硫铁矿、冶炼烟酸和进口硫磺,与国外硫酸生产原料主要为硫磺有较大不同。中国硫磺资源比较贫乏,硫酸生产对进口硫磺依存度较高。因此,为保证中国磷肥工业的可持续发展,我们需要对磷肥生产所需原料——磷矿资源和硫资源的储量、特点及保障能力有比较清楚的认识。
三、钾肥原料:
原料钾是在地壳中含量占第七位的元素。但是,它在矿石、土壤、海洋、湖泊和江河中的含量都很低。具有经济价值的钾盐矿,是内陆海在干燥条件下,蒸发水分后干涸的沉积矿床。最主要的沉积钾盐矿有钾石盐(KCl、NaCl混合物)、无水钾镁矾 (K2SO4·2MgSO4)、钾盐镁矾和光卤石等。一些含钾的井水、湖水和卤水,也是钾肥原料的来源。
氮肥:
毛发 13、00 %
大豆饼 7、00 %
花生饼 6、32%
芝麻饼 5、80%
芝麻酱渣 6、59%
人尿粪 1、00%
鱼杂 4 - 5%
磷肥:
生骨粉 20、00%
蒸制骨粉 25 - 30%
鱼杂 3 - 5%
虾皮 2 - 3%
蟹壳 2 - 3%
钾肥:
草木灰 5 - 10%(是含钾肥最多的有机肥)
蚕豆 0、45%
酒糟 1、15%
煤渣 0、20%
炕土 0、62%
鱼杂 0、2 - 0、5%
虾皮 0、5 - 0、8%
蟹壳 0、6 - 0、8%
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