The fate of nitrogen fertilizer in current crop and succession crops in winter wheat and summer maize rotation system were studied using field 15n micro-plot.
采用田间微区1 5n示踪试验研究了肥料氮在冬小麦、夏玉米当季和后茬的去向。
The dynamic distribution and fate of nitrogen species in the surface-water and leaking-water of simulated water bamboo fields were evaluated by the leaching-pond orientation experiments.
通过测坑定位试验，研究了茭白田坑面水和渗漏水中氮素变化动态和流失规律。
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