phosphorus-nitrogen ratio 中文意思是什麼
phosphorus-nitrogen ratio
解釋
磷氮比- phosphorus : n. 1. 【化學】磷。2. 磷光體 （＝phosphor）。
- nitrogen : n 【化學】氮，氮氣。 nitrogen chloride 三氯化氮。 nitrogen cycle 氮循環。 nitrogen dioxide 二氧化...
- ratio : n. （pl. ratios）1. 比，比率，比值；比例；系數。2. 【經濟學】復本位制中金銀的法定比價。vt. 1. 用比例方式表達；求出…的比值；使…成比例。2. 將（相片）按比例放大或縮小。
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However, except nitrate, the nitrogen concentration including nitrite, ammonia, don, pn and tn in spring 1998 were higher than those in autumn 1997, with the average concentration of 4. 9714. 65, 0. 67 ?. 20, 0. 7210. 30, 9. 2516. 88, 7. 3014. 42 and 22. 9 ? 0. 2 mol / dm3 in autumn, and 4. 5812. 39, 0. 70 + 0. 14, 2. 2611. 05, 9. 8814. 92, 7. 8816. 21 and 25. 318. 94 mol / dm3 in spring, respectively. the n / p ratio in autumn 1997 was 13. 217. 54 in average which a little lower than redfield ratio, nevertheless in spring 1998 the value was as high as 25. 6113. 0, much hi gher than redfield ratio. there shows a clear seasonal variation of phosphorus structure in two seasons, but the nitrogen structure almost unchanged
兩個季節海水中磷的結構變化明顯，秋季磷主要以pp （ 54 ）為主，而春季長江口營養鹽、石油烴對海洋生態系統影響及動力學研究主要以po4一p （ 51 % ）為主;兩季節氮的結構基本一致，溶解氮都以don為主，分別為40 %和39 % :秋季no3一n比例較春季略高（ 22 % ） ，而春季nh4一n比例較秋季略高（ 9 % ） 。 -
Vegetable soil was treated with the 20ml / s mixed gas of hydrogen and air ( the ratio = 1 : 9 ) by the man - made analog equipment that can release hydrogen just like nodules, at the same time, control was made that treated with 20ml / s air flow. after three month, analysis the soil. which nutrition and how it changed were try to find. result indicated that nitrogen was changed but phosphorus and potassium had no evident change
採用人工模擬根瘤放氫裝置，一系列相關指標的變化，有效養分發生了何種變化及其可能機理。結果表明，土壤經氫處理后對氮素及其相關因子表現出較大影響，而對磷素和鉀素及其相關因子無明顯改變。
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