...水稻吸N 微生物量N 无机N [gap=2007]rice-duck ecosystems; soluble organic N; dissolved organic N; percolation water; N uptake of rice; microbial biomass N; inorganic N ..
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The results of 15N tracing showed that the fertilizer-N uptake in rice plant and grain of two varieties increased with the advance of growth stage.
示踪结果显示，两个品种水稻植株和籽粒吸收肥料氮，都随着生育期的推移而逐渐增加。
The effects of N application rate on the characters of uptake nitrogen and nitrogen recovery of different rice varieties was studied under field conditions.
在苏南太湖流域，对不同氮肥施用水平下水稻的产量、氮肥利用率及氮肥水环境损失进行了研究。
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