有机态氮

鸡粪堆腐过程中有机态氮形态的动态变化

Dynamic Change of Organic Nitrogen Forms During the Chicken Manure Composing

耕作土壤有机态氮内循环中几个问题的商榷

Discussion on several aspects of internal cycling of organic nitrogen in cultivated soils

通过分析测试，研究了陕西12种农业土壤全氮（Nt），矿质态氮（Nmin）和土壤有机态氮（Norg）的组成。

The composition of total soil nitrogen ( Nt ), mineral soil nitrogen ( Nmin ) andorganic soil nitrogen ( Norg ) of twelve different kinds of loessial soil in Shaanxi pro-vince were studied through soil testing technique .

在生菜收获前12d，以尿素、氨基酸替代传统营养液配方中20%的硝态氮作为营养液的氮源，探讨了有机态氮，尤其是氨基酸对生菜（碧玉奶油生菜）的营养效应。

The conclusions are as follows : The first : We studied the effect of different mixture of urea and amino acids as partial ( 20 % ) replacing nitrate of solution on nitrate content and quality of lettuce in hydroponics . Five treatments were done 12d before harvest .

土壤干燥过程对土壤易矿化有机态氮的影响

Effects of desiccation of soil samples on easily mineralizing nitrogen

生活垃圾堆肥过程中腐殖质及有机态氮组分的变化

Changes of humic substances and organic nitrogen forms during municipal solid waste composting

土壤易矿化有机态氮和微生物态氮作为土壤氮素生物有效性指标的评价

Evaluation of soil easily mineralizable nitrogen and microbial biomass nitrogen for biological available index

土壤可溶性有机态氮的释放动力学研究

Release kinetics of soluble organic N from soils

水培生菜有机态氮的营养效应及营养液溶氧管理技术研究

Study on Nutritional Effect of Organic-N on Lettuce and Dissolved Oxygen Techniques in Hydroponics

铜绿微囊藻对硝酸态氮，铵态氮和有机态氮都能够很好的吸收。

Microcystis aeruginosa grows well in the water of nitrate nitrogen , ammonium nitrogen or organic nitrogen .

不同施肥处理后效对北方淹育型水稻土有机态氮组分和作物产量的影响

Effect on Organic Nitrogen Composition and Yield with Residual Action of Different Fertilization in Submerged Paddy Soil of Northern Region

这些菌株能利用无机和有机态氮，但蛋白胨和酵母提取物是良好的氮源。

These strains can utilize organic and inorganic forms of nitrogen , but peptone and yeast extract are suitable nitrogen sources .

在盆栽试验条件下，土壤易矿化有机态氮和种植前土壤微生物态氮能够较好地反映土壤氮素的矿化和供应能力，可以作为土壤氮素的生物有效性指标。

It is concluded that the soil easily mineralizable nitrogen and microbial biomass nitrogen can be taken as the biological available index for soil nitrogen mineralization and availability in the pot experiment .

沉积物孵化实验表明，水体中无机氮各种形态之间的转化和水体中含氧程度有关，沉积物中的氮可以向无机态氮及有机态氮转化。

Incubation experiment of sediments indicated that short-term interconversions between forms of nitrogen are relate to the content of oxygen in water column and that the nitrogen in sediments can transform into dissolved inorganic and organic nitrogen .

结果表明：有机态氮替代部分硝态氮相对于完全无机氮源，可以明显提高生菜产量和改善品质，并能显著降低生菜体内硝酸盐的含量。

Compared to contrast treatment of total inorganic-N , the treatments of partial replacement of nitrate by organic-N can improve the production and the quality of the lettuce obviously and can reduce the nitrate content of the lettuce especially .

幼穗为外植体诱导愈伤组织，经高有机态氮培养基改造得到易碎型胚性愈伤组织，在1/2AA培养基+1/2MSDL培养基中得到了生长迅速、分散的胚性悬浮系。

Were obtained from young inflorescence culture by subculturing the calli in organic nitrogen rich media and were used to promote the embryogenic suspension cultures . Fast growing , fine dispersed embryogenic suspensions were established in 1 / 2 AA + 1 / 2 MSDL liquid medium .

有机肥料中氨态氮的测定&微量扩散法

Determination of ammonia in organic manures by the microdiffusion method

土壤有机质、铵态氮和速效氮含量有所增加；

The organic matter , NH4 + - N , available N content have conspicuously increased ;

水稻对有机、无机态肥料氮和土壤氮的吸收利用探讨

Discussion on the absorption and utilization of organic and inorganic fertilizer nitrogen and soil nitrogen by rice

在水中，氮是以有机氮、氨态氮、亚硝酸氮和硝酸氮的形式存在的。

In water , nitrogen exists in form of organic nitrogen , ammonia nitrogen , nitrite and nitrate .

土壤饱和持水量、毛管持水量、非毛管孔隙度、毛管孔隙度、有机质、铵态氮、硝态氮、全氮均与林木平均树高、平均胸径呈正相关。

Capillary porosity and N have little relevance with the average tree height and the average breast high diameter of trees .

海水养殖池塘底泥异养硝化作用的研究并进一步考察了上述两种底泥对水体中有机质、氨态氮和亚硝酸盐的去除能力，探寻了利用异养硝化作用改善水质环境的潜力。

Investigation on heterotrophic nitrification of sediments in marine culture ponds From another point of view , our study tries to find a potential of heterotrophic nitrification for the improvement of contaminated aquatic environment .

结果表明，对于同一封育年限的油松林地，土壤有机质、硝态氮、速效磷和脲酶含量随采样深度增加而减小；

The results show that in the same H & A , with depth of soil increasing , contents of organic matter ( OM ), NO-3-N , available phosphor ( AP ) and urease decreased respectively .

有机物料与硝态氮的交互作用大，而与铵态氮的交互作用小，前者是后者的2.7倍，这种差异与微生物对两种形态氮的固定不同有关。

Different organic materials had different impacts on soil microbial biomass nitrogen . The interaction between organic material and nitrate was larger than that between organic material and ammonium , the former was as much as 2.7 times of the latter .

研究表明，施肥处理1年后，施有机肥的土壤中有机态氮组分含量最高，其次是沸石配施化肥，单施化肥和对照最低。

The research showed that organic nitrogen composition was the highest in applied organic fertilizer , zeolite with fertilizer was second and only appling fertilizer and control was the lowest after one year soil treated .

系统的有机态营养元素输入量偏小，有机态氮输入量为无机态氮输入量的68%，而有机态磷输入量仅为无机态磷输入量的21%；

The inputs of organic nutrients are relative low , for the input of organic N is only 68 % that of the inorganic N and the input of organic P is only 21 % that of inorganic P ;