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1.Effect of Irrigation and Precipitation on Soil Nitrate Nitrogen Accumulation
灌溉与降水对土壤NO_3~--N累积的影响收藏指正
2.This course demonstrate the important sorts of wastewater analysis, it includes chemical oxygen demand (COD), biochemical oxygen demand (BOD), suspended solids (SS), volatile suspended solids (VSS), ammonia nitrogen, organic nitrogen, nitrite nitrogen, nitrate nitrogen, orthophosphate, total phosphate, sulfate, and sulfide.
本课程包含污水分析重要项目的原理解说及实验分析，分析项目包括：化学需氧量、生化需氧量、悬浮固体物、挥发性悬浮固体物、氨氮、有机氮、亚硝酸盐氮、硝酸盐氮、正磷酸盐、总磷、硫酸盐及硫化物。收藏指正
3.Under the condition,the system has the removal rates for TN,ammonia nitrogen,nitrate nitrogen,nitrite nitrogen,TP,phosphatic phosphor,chl a were 89.85%,88.69%,82.64%,77.73%,90.65% and 67.11%respectively. Removal rate for organic pollutant reached to 54.92%.
系统对TN、NH4+-N、NO3--N、NO2--N、TP、PO4--P的去除率最高可分别达89.85%、88.69%、82.64%、77.73%、90.65%、67.11%,对总有机物污染物的去除率可以达到54.92%。收藏指正
4.This paper reports the effect of DCD in seedling stage to soil microorganism of bacteria,mold and actinomycetes,and the concentration changes of both ammonium nitrogen and nitrate nitrogen in soil.
实验研究了双氰胺在玉米苗期对土壤微生物细菌、霉菌和放线菌的影响,及对土壤中铵态氮和硝态氮贮量变化的影响。收藏指正
5.4. In the each stage of the cotton growth remnant of soil nitrate nitrogen was higher, but loss of apparent budget of soil nitrate was higher only in the seedling stage and the beginning of bell stage.
4.棉花生长发育的各个时期土壤硝态氮的残留都很高,但仅在苗期、初铃期表观损失较高。收藏指正
6.In the end the ammonium nitrogen content of the treatment with AOL or DCD was towered above the one without those nitrification inhibitors, and the nitrate nitrogen content of the former was less than the latter.
在相同条件下,分别加AOL和DCD处理的铵态氮质量分数都要比未加硝化抑制剂处理的高; 相应地,在开始阶段硝态氮质量分数也要比未加硝化抑制剂处理的低。收藏指正
7.AUR (ammonia-nitrogen utilization rate), NUR (nitrate-nitrogen utilization rate) and OUR (oxygen utilization rate) parameters obtained from the consumption curve slope of activated sludge test could evaluate effectively the bioactivity of SBR sludge.
由活性污泥实验消耗曲线斜率取得氨氮利用率(AUR)、硝态氮利用率(NUR)、氧气利用率(OUR)3个参数,可以有效评价SBR污泥生物活性.收藏指正
8.NRA was higher in petioles and barks and lower in leaves and roots when induced separately with an equal concentration of nitrate nitrogen.
分别经同浓度硝态氮的诱导，叶柄和树皮的硝酸还原酶活性最强，叶和根的较弱。 3．铵态氮也可诱导橡胶树的硝酸还原酶活性。收藏指正
9.The amount of soil ammonium nitrogen fertilizing DCD,DCD/NBPT-amended urea coated by two material film was more high,for 56.38～60.22 mg/kg. Nitrate nitrogen was less,about 28.0 mg/kg,and so was DCD/ NBPT-amended urea.
2种膜材料包膜硝化抑制剂(DCD)涂层尿素、包膜DCD/NPBT涂层尿素肥料的铵态氮含量都很高,在56.38~60.22 mg/kg之间,而硝态氮含量都很低,DCD/NPBT涂层尿素肥料的硝态氮含量也很低,在28.0 mg/kg左右。收藏指正
10.Foliar applicationofbag-raised7-8-month-old coffee trees(Coffea arabica)showedthatbothchelated rare earth molybdate and rare earth nitrate couldpromote nitrogen and carbonassimilation in leaves ofCoffea arabica.
以塑料袋小粒种咖啡7－8月龄小苗对生叶为材料，取其中一片涂施稀土铝或硝酸稀土微肥作为处理，另一片徐清水为对照。收藏指正
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