全氮

不同施肥处理下土壤全氮含量和碱解氮含量之间的相关关系均达到极显著正相关。

The correlation between STN content and SAN content were significant positive correlation under different fertilization .

结果表明，水稻田土壤有机碳、全氮和全磷含量水平均较高，水田改为旱地后土壤有机碳、全氮含量及C/N比值有较大幅度的下降，但全磷含量变化不大。

The results showed that the content of SOC , STN and STP had a high level in the paddy soil , but SOC and STN ( except STP ) decreased greatly after being changed to arid land .

钼肥浸种对鲜食油菜生长、Vc含量及全氮含量的影响

Effect of ammonium molybdate to rape growth , Vitamin-C content and total nitrogen content

总硝化作用速率与土壤pH值、土壤有机质、全氮及C/N相关不显著。

Gross nitrification rates were not related to the pH value , the organic matter , total nitrogen and C / N.

随着土层深度增加，pH值逐渐升高，全氮、有效磷、碱解氮等逐渐降低。短时间的矿区复垦土壤需要使用相应的肥料保证植物的正常生长。

With depth increasing , the pH value elevated gradually , total nitrogen , available phosphorus and alkaline hydrolysis nitrogen were declined gradually .

通过人工控制模拟试验，研究了植物中全氮与全磷之比（植物N/P）和土壤pH值与湿地植物物种丰富度的关系。

The influence of plant N / P , soil pH value on wetland plant species richness was studied through artificial control simulating test .

土壤容重与有机碳、土壤全氮和微生物生物量C、N之间呈现极显著的指数负相关关系（p<0.01）；

There was significant negative index correlation between organic carbon , nitrogen & soil microbial biomass C , N and bulk density ( p < 0.01 ) .

在所测的8种土壤理化因素中，土壤微生物DNA总量分布对土壤pH、有机质、全氮、全磷、全钾影响较大。

The distribution of the total microbial total DNA play important role in soil pH , organic matter , total nitrogen , total phosphorus , total postassium content .

土壤的有机质、全氮及速效养分等的含量随树龄的生长呈上升趋势；土壤的PH及盐分含量呈下降趋势。

Soil organic matter , total nitrogen and available nutrients content of an upward trend with the growth of age ; soil PH and salt content decreased .

其余土壤养分指标：有效磷、有机质、全氮、硝态氮和土壤pH总体来看，相对于对照样地土壤无较大影响。

Other indicators of soil nutrients : phosphorus , organic matter , total nitrogen , nitrate and soil pH had no great impact in general , professedly .

结果表明，流动沙丘与其它植被类型相比土壤颗粒较粗，有机质含量贫乏，速效钾和pH也较低，但全氮和速效磷的含量却相对较高；

The soil of moving dune has coarser granule , more total nitrogen and available phosphorus , but less organic content , available kalium and lower pH value .

有机质的理论模型是球状模型，全氮、有效磷是指数模型，pH值、速效钾是线性模型。

The optimal model of organic matter was the spherical model ; total nitrogen and phosphorus were the index model , pH , potassium were the linear model .

在B层，有机质作为重金属离子结合物的重要性降低，但仍然是全氮、全磷最主要的污染来源。

In the B layer , organic matters which act as a combination of heavy metal recede in importance but it is still the main source of total phosphorus and total nitrogen pollutants .

对湛江地区辣椒地土壤取样，测定了容重pH、及有机质、全氮、碱解氮、速效磷、速效钾含量。

Soil sample from the chilli field was taken to determine its bulk density , pH and the organic matter , overall nitrogon , inorganic nitrogen , quick-acting phosphorus and potassium .

火烧迹地在降第一场雨后土壤pH值升高，有机质减少，全氮、全磷、钾、钙等含量减少，而有效氮、镁含量增加。

Soil pH , available N and Mg increase on burnt sites following the first rainfall , however , soil organic matter , total N , total P , K and Ca decrease .

相关性分析表明，侵蚀区和沉积区土壤有机碳和全氮含量之间均呈极显著线性正相关关系（p0.01）。

Correlation analysis showed that there was significant linear relationship between soil organic carbon and total nitrogen at two different sites ( p0.01 ) . 3 .

相关分析表明，8种植物凋落物中TSN、SON、无机氮和全氮之间相关性达极显著水平。

Correlation analysis showed that there were significant differences between TSN , SON , Inorganic N and TN in eight plant residues .

土壤调查数据地域统计的最佳估值研究&彰武县表层土全氮量的半方差图和块状Kriging估值

Optimal estimation of soil survey data by geostatistical method & semi-variogram and block Kriging estimation of topsoil nitrogen of Zhangwu County

杉木连栽造成土壤有机质、全氮和H／F的降低和总酚量、游离酚量的升高。

In bulk soil , Chinese fir succession can result in a decline in total organic compounds , total N and H / F , but an increase in total phenol and free phenol .

D值与土壤pH值、全磷含量呈极显著正相关，而与有机质、全氮、速效钾含量相关性均未达到显著水平。

There were a significant positive correlation between D value , pH value and total phosphorus content , but organic matter , total nitrogen and available potassium content did not have significant correlation with D value .

结果表明：（1）橡胶林比次生林具有更低的土壤有机质和全氮含量以及更高的土壤pH值。

Our results showed that : ( 1 ) Soil organic matter and total N concentration in secondary forest were significantly higher than those in rubber plantation . In constrast , soil pH showed a different pattern .

通过对有机质、全氮、C／N比差异较大的10种土壤进行盆栽和培养试验，用对数方程、指数方程、幂函数方程对土壤氮素矿化过程进行了摸拟。

The pot and incubation experiments were carried out with 10 soils by different indexes including organic matter , total nitrogen content and C / N ratio , nitrogen mineralization processes of soils are simulated using logarithmic , exponential and power functions .

NPK+有机肥处理对羊草全氮和全磷都有最好的促进作用，比CK分别高出47%和33%；

NPK + manure had the most advanced effect to total nitrogen and total phosphorus of pasture , it increased 47 % and 33 % than CK ; Good is right .

氮硅配施提高了土壤速效氮含量和有效硅含量、降低了土壤速效钾含量，而对速效磷、pH、有机质及全氮无明显影响。

Combined application of nitrogen with silicon could increase soil available nitrogen and silicon contents , decrease soil available potassium content , but had no significant effects on soil available phosphorus , organic matter , pH value and total nitrogen .

结果表明：气体污染物引起附近林地土壤pH值、有机质、全氮、碱解氮含量下降，台湾相思林在污染环境下改良土壤化学性质极为明显。

Results showed that the polluted air caused the nearby forest decline of soil acidification , the content of soil organic matter , the total N and available N. The Acacia confusa stand could improve the soil chemical characteristics evidently .

研究内容及主要结果如下：1研究得知，该污灌区土壤为中性土壤，pH值在6.58-7.48，污灌区土壤有机质含量在10.62-34.2，污灌区全氮含量在0.009657-0.020444，污灌区有效磷含量在0.36-0.78。

The main results are as follows : 1 The soil in sewage irrigation area is neutral . pH values is 6.58-7.48 , organic matter content is 10.62-34.2 , total nitrogen content is 0.009657-0.020444 , available phosphorus content is 0.36-0.78 .

荒地与毛白杨林在土壤有机碳、全氮、全磷、全钾、速效氮含量无显著性差异（P＞0.05），速效磷、速效钾含量有显著性差异（P＜0.05）。

There was no significant difference between wasteland and Populus tomentosa forests in soil organic carbon , total nitrogen , total phosphorus , total potassium and available nitrogen ( P0.05 ), but there was significant difference in available phosphorus and potassium content ( P 0.05 ) .

大部分土壤有机质和全氮含量适中，部分土壤有机质与全N较高。

The content of organic matter and total nitrogen in most tobacco-growing soils are suitable for the production of high quality tobacco . There also some soils had higher contents of organic matter and total nitrogen , which fertilizers need to be controlled .

在60m步长间隔尺度下，土壤有机碳、全氮和pH有强烈的空间相关性，土壤全磷空间相关性为中等程度。

Soil ( organic ) carbon , soil total N , and pH belonged to high and soil total P belonged to medium degree spatial correlation at 60m lag intervals , respectively .

不同利用方式下土壤比表面与土壤有机碳、全氮、碱解氮呈显著负相关关系，与土壤pH、硫、磷之间的关系因土地利用方式不同而具有一定的差异。

Soil SSA was negatively correlated with soil organic carbon , total nitrogen , and available nitrogen concentrations under the four land use patterns , however , the relationships between SSA and soil pH , sulfur and phosphorus were different among different land uses .