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- soil organic N 土壤有机氮
- The soil organic matter and total N stabilize basically, available P increase while alkaline hydrolyze N decrease obviously in the cornrice rotation. 玉米、稻连作土壤有机质和全氮基本稳定，有效磷呈上升趋势，碱解氮和速效钾下降趋势明显。
- Corn economic yield and biological yield were significantly related with soil organic matter, total N, alkali-hydrolyzable N, total P, and availabl P. 玉米产量及生物量与土壤有机质、全氮、碱解氮、全磷、速磷相关性达极显著或显著相关。
- The soil organic matter and total N stabilize basically,available P increase while alkaline hydrolyze N decrease obviously in the cornrice rotation. 玉米、水稻连作土壤有机质和全氮基本稳定，有效磷呈上升趋势，碱解氮和速效钾下降趋势明显。
- SM increased soil organic matter and available N, P, and K to varying degrees and PM didn't, while soil organic matter in the surface layer decreased in PM treatment. 地膜覆盖兼有显著的增温效应，而秸秆覆盖土壤温度却明显低于对照，但在冬季低温短日照条件下，地膜覆盖土壤温度反而低于秸秆覆盖；
- Abstract： The dynamics of soil organic C, N and aggregate stability in sub-alpine grassland soil along a chronosequence of cultivation were investigated. 摘要 ：研究了高山草地土壤有机碳、氮含量以及土壤团聚体稳定性随开垦年限而变化的动力学过程。
- The results there are significant positive correlations between soil organic matter, total N, available N, available K, urease, invertase, alkaline-phosphatase and catalase. 结果表明：土壤有机质、全氮、碱解氮、速效钾、脲酶、蔗糖酶、碱性磷酸酶和过氧化氢酶之间均呈极显著正相关；
- Long-term fertilizer application effects soil organic carbon (C), total N and potentially mineralizable N in continuous wheat cropping systems in western Canada. 表6 加拿大西部小麦连作体系中长期施肥对土壤有机碳(C)、全N和潜在可矿化氮的影响 Table 6.
- Water storage in soil organic horizons is a further factor to consider. 在土壤有机质中的水分贮积是一个值得进一步考虑的因素。
- The mineralizable N was estimated by aerobic incubation and the organic N components by Bremner's procedure. 结果表明,酸解氮与可矿化氮有较密切的正相关关系。
- Objective: The new organic N resource in the production of cephalosporin C fermentation, with adjusting miaterial percent takes place of CSL. 目的:新型有机氮源-生物氮,在头孢菌素C的发酵生产过程中,通过基础料配方调整,替代部分玉米浆。
- Bacteria and fungi are other important soil organisms. 细菌和真菌是另一类重要的土壤有机体。
- During the former and metaphase the content of neoxanthin under the organic N condition were more, but conditions were changed during the later anaphase. 有机肥对新黄质前中期起促进积累作用，中后期起促进代谢作用；
- Soil organic matter is the product of microbial decomposition of plant and animal residues. 土壤有机质是微生物分解植物和动物残体的产物。
- Soil organic matter,available Ca,Mg,S,Fe,Mn,Cu and Si were abundant,while available N,Zn and B were deficient,and the deficiency rates were 62.5%,62.5% and 87.5% respectively. The CV(coefficient of variation) of soil available P and K changed greatly. 有机质、有效钙、镁、硫、铁、锰、铜以及硅的含量均较丰富; 碱解氮、有效锌、硼普遍缺乏;其缺乏数分别占总样本的62.;5%25、62
- The contain of N, P, Ma, Fe of lichee leaves were increased and the K, Ca, Cu, Zn were decreased due to rainfall cause the transportation and leaching of soil organic matter and fertilization. 从荔枝树的叶片养分分析可知，在施肥期若逢降雨虽有助于土壤有机质及肥分之溶解与移动，促进植物根部吸收，使得叶片氮、磷、镁、铁含量增加，但相对地因雨水淋洗作用，亦会造成钾、钙、铜、锌等含量的减少。
- A major portion of the soil organic matter is derived from the added and residual vegetative material. 加进去的和残留下来的植物物质则是土壤有机质的主要来源。
- The soil temperature of rhizosphere is distinctly higher after cultivation of mire soil , but soil organic carbon and nitrogen levels, and C: N ratios decreased notably after reclamation. 湿地垦殖后,在相同季节根层土壤温度明显高于沼泽湿地土壤,但垦殖后土壤有机碳、氮素含量明显降低,C:N比值减小,土壤呼吸通量增大,且具有季节性变化。
- DCCA ordination showed that soil organic matter content was the decisive factor to the development of communities. DCCA排序进一步表明了土壤有机质含量是所有因子中对植物群落发展起决定性作用的主要环境因素.
- Zn situation of vegetable garden soils and its relation to soil organic carbon. 菜园土壤锌营养状况及其与土壤有机碳的关系。
