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涓€鐩翠互鏉ワ紝鎴戣涓虹О鍛兼€诲嚡姘忔爱鏄釜閿欒锛屼絾鏄紝鐜板湪鎴戝嵈鏈変簺鎬€鐤戣嚜宸变簡锛屼箣鎵€浠ユ€€鐤戯紝鏄洜涓烘垜璁や负鍑皬姘槸涓噯纭棤璇殑绉板懠銆傚悓鏍峰紩鐢ㄣ€婃帓姘村伐绋嬨€嬩腑鐨勮杩帮紝绗?椤靛啓閬擄細“鍑皬姘紙鑻辨枃缂╁啓鏄疜N锛夛紝鏄湁鏈烘爱鍜屾皑姘箣鍜?rdquo;锛岄偅涔堬紝鎴戜滑鍦ㄥソ澶氭湡鍒婁笂鐪嬪埌鐨凾KN灏辫涓嶈繃鍘讳簡锛屾棦鐒禟N灏辫兘琛ㄧず鏈夋満姘笌姘ㄦ爱涔嬪拰锛岄偅涔堝湪KN涔嬪墠鍔犱竴涓猅瀛楋紝灏卞彉鎴愪簡鎬诲嚡姘忔爱浜嗭紝杩欏氨涓嶉€氫簡銆傚洜涓篢KN鍜孴N涓嶄竴鏍凤紝TN鍖呮嫭鍚勭鍚勬牱褰㈡€佺殑N锛屽洜姝わ紝鍓嶉潰鍔犱竴涓猅瀛楋紝“鎬?rdquo;鐨勬湁閬撶悊銆俆KN灏变笉涓€鏍蜂簡锛屽敖绠″畠涔熷寘鎷袱绉嶅舰鎬侊紝浣嗘槸KN宸茬粡姒傛嫭浜嗭紝鍐嶅姞涓€涓猅瀛楀氨姣棤閬撶悊浜嗐€?/font>
Total Kjeldahl Nitrogen or TKN is the sum of organic nitrogen; ammonia (NH3) and ammonium (NH4+) in the chemical analysis of soil, water, or wastewater (e.g. sewage treatment plant effluent). To calculate Total Nitrogen (TN), the concentrations of nitrate-N and nitrite-N are determined and added to TKN.
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