氮素是农业生产中必不可少的肥料,是构成蛋白质的基本元素之一。为了改善人类的营养,人们正为提高农作物产量及其蛋白质含量作着不懈的努力,随之而来的是对氮素需求的日益增长。因此,我们必须运用一切资源和手段来扩大肥源和实现肥料产量的增加。虽然现代合成氨工业高度发展,当代农业施 Nitrogen is an essential fertilizer for agricultural production and is one of the basic elements of protein. In order to improve human nutrition, people are making unremitting efforts to improve crop yields and their protein content, followed by the growing demand for nitrogen. Therefore, we must use all resources and means to expand fertilizers and increase fertilizer production. Although modern ammonia industry is highly developed, contemporary agriculture facilities