Bocaue , phillippines : a worker loads nitrate powder into small tubes at a makeshift pyrotechnics factory .
波卡厄菲律宾:一个临时烟花厂,工人正将硝酸盐粉装进小管。
Some phytoplankton can fix nitrogen and can grow in areas where nitrate concentrations are low .
一些浮游植物可以通过固氮在硝酸盐含量较低的地区生长。
Aerobic bacteria chew up the ammonia and turn it first into nitride and then to nitrate .
好氧菌将氨先转化成氮氧化物再转化成硝酸盐。
For humans , nitrate brings two main health issues : blue baby syndrome and digestive tract cancers
硝酸盐给人类带来的疾病主要有两种:蓝婴综合症以及消化系统的恶性肿瘤。
Low oxygen levels encourage the growth of bacteria that destroy nitrate - a vital nutrient for the ocean 's microscopic plants , or phytoplankton .
低含氧量导致细菌滋长,这些细菌会破坏硝酸盐海洋微生物及浮游植物的重要营养物质之一。
In the dry uplands of chile , rich mineral nitrate deposits were then found , and gradually took the place of guano in the late 19th century .
人们在智利干燥的高地发现了丰富的硝酸盐矿藏,并在19世纪后期逐渐取代了鸟粪石。
Humberstone processed the largest deposit of saltpeter ( nitrate 's nickname ) in the world and provided the valuable mineral to countries in north america and europe for fertilizers , food preservatives and explosives .
With nitrate , drought spurs high levels because plants take up nitrogen , applied as a fertilizer , but cannot convert it into useful compounds due to a lack of water .
干旱程度因硝酸盐的存在而加剧,植物吸收化肥中的氮,但因缺水而不能将它转化为有用的化合物。
Phytoplankton , like land plants , require nutrients such as nitrate , phosphate , silicate , and calcium at various levels depending on the species .