The effects of different fertilization stage on wheat yield, nitrogen uptake, utilization, residue, distribution and nitrogen balance were studied by potted plant experiment.
分析了不同施肥时期对砂质潮土小麦产量、氮素吸收与利用、土壤残留与氮素损失的影响。
The major nitrogen transformation pathways in constructed wetlands include nitrification and denitrification of microbe, plant uptake and adsorption by substrate.
人工湿地氮转化途径主要包括微生物的硝化反硝化作用、植物的吸收和湿地基质的吸附等。
Supplemental irrigation at over-wintering, jointing or filling stage significantly increased the nitrogen uptake by plant and decreased the nitrogen residual 47.
通过温室培养试验，研究了不同生长期缺水和补充灌水对冬小麦氮素吸收利用和土壤残留的影响。
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