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———15N

———15N

———15N

———15N

1

This was found to be related to improved uptake of nitrogen as indicated in both nutrient solution and 15N labeling experiments .

溶液培养和 15N 示踪盆栽试验都表明施镁增加了茶树对氮的吸收；

2

Objective To nonradioactive method , ~15N-ureatracingemission spectroscopy, for detecting theHelicobacter pylori(Hp)infection .

目的建立检测幽门螺杆菌感染的无损伤，无放射性方法 ———15N 尿素发射光谱分析法。

3

In general, the 15N utilization and distribution in different organs show the same trends at different stages .

不同时期植株各器官的 15N 利用率与分配率呈现相同的趋势。

5

Nitrogen nutrition of Panax quinquefolium Linne was studied by using 15N tracer technique.

通过 15N 示踪微区试验，研究了西洋参氮素营养特性。

6

The distribution rate of 15N in the fruits is 26% while it is 38% in leaves at the swollen stage .

膨大期处理，果实中的 15N 分配率达到 26%，而分配到叶片中的 15N 量降为 38%。

7

The method is also suitable to label plant with 13C and 15N isotope .

该方法亦适合于采用 14C 、15N 等同位素对植物进行标记和示踪。

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