urea nitrogen concentration 中文意思是什麼
urea nitrogen concentration
解釋
尿素氮濃度- urea : n. 【化學】尿素，脲。-l, ureic adj.
- nitrogen : n 【化學】氮，氮氣。 nitrogen chloride 三氯化氮。 nitrogen cycle 氮循環。 nitrogen dioxide 二氧化...
- concentration : n. 1. 集中。2. 【化學】提濃，蒸濃，濃縮；濃度；稠密度；【礦物】汰選，選礦，富化。3. 集中注意，專心。
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But the ability of which to increase the quality of no3 - was not so clearly. the biggest value of no3 - concentration only attended ismg ' l " 1. while nh4 + and tn reached 120 mg ' l - 1 and 210mg ' l - 1, urea application can improve the ratio of nh4 + in the tn, decrease the ratio of no3 -. so nflt + and tn were the mostly important nitrogen indexes to monitor the water pollution in the paddy - field, no3 - may be the assistant nitrogen index
施氮能夠明顯地提高稻田表面水體中銨態氮和全氮的含量，而對于提高硝態氮濃度的能力較弱，硝態氮的最大濃度達到15mgl ~ （ - 1 ） ，而銨態氮最大值達到120mgl ~ （ - 1 ） ，全氮最大含量更達到210mgl ~ （ - 1 ） 。
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