查询词典 nitrogen

Under 50%, 60% and 70% field capacity, ammonium nitrogen content in soil with water soluble felted and coated fertilizer was in positive correlation to water content, and nitrate nitrogen content after 24 d was more than that with urea treatment.

在田间持水量50%、60%、70%条件下，微水溶性胶结包膜缓释肥料土壤铵态氮含量变化与水分呈正相关关系，24 d后硝态氮含量呈高于尿素处理趋势。

Aside, the heightener of ammonia-nitrogen removal follows ammonia-nitrogen original concentration.

另外，氨氮去除率随着初始氨氮浓度的增大有明显的提高。

The comparison of changes of nitrate concentration and hardness indicates that there is a relationship between the nitrogen pollution and the increasing of other compounds, but nitrogen compounds have their own characteristics on migration and transformation and accumulation in different hydrochemical environment.

NO(上标-下标 3)浓度与硬度变化趋势表明：氮污染与硬度等指标值升高有一定的联系，但在不同的水文地球化学环境中，在迁移和转化等方面又有着自已的特性。

The results showed that the contents of soil total nitrogen and hydrolyzable nitrogen can be reduced by irrigation.

由于对土壤肥力这一科学概念缺乏严格的定义和明确的量化指标，使人们对土壤肥力的认识长期停留在感性认识阶段，因此，常用N、P、K和有机质等养分含量的多少来衡量土壤肥力的高低[10 ，14 ] 。

Spatial distribution of the soil organic matter content was uniform overall in the county, but total nitrogen, hydrolyzable nitrogen, available phosphorus and potassium concentration distributed as zone or lump styles.

全县2000年耕地土壤机质含量的空间分布较为均一，全氮、水解氮、速效磷和速效钾含量各级别间的空间分布以块状或带状分布为主。

The results indicated that vegetation biomass had a significant positive relationship with vegetation coverage. They had a significant negative correlation with bulk density of soil, and a positive correlation with macroaggregate, water stability macroaggregate, organic matter content, total nitrogen content, hydrolyzable nitrogen content, available kalium content, microbial biomass, and microbial respiration. However, they had no significant relationship with total phosphorus and available phosphorus.

在其恢复过程中，植被地上生物量与植被覆盖度呈正相关，它们与土壤容重呈负相关，而与土壤大团聚体、水稳性大团聚体、有机质含量、全氮含量、水解氮含量、速效钾含量、微生物量以及土壤呼吸强度之间呈正相关，与土壤全磷、速效磷含量无显著相关性。

Abnormity sampling method was adopted and there was 128 sampling points in this field.The statistical laws of soil pH,organic matter,total phosphorus,total nitrogen,alkaline hydrolyzable nitrogen,available potassium and available phosphorus were analyzed, and the results indicated that the variation coefficient of soil nutrients was between 6.3% and 356.1%,pH was 5.3%.Using the geostatistica...

以土壤的pH、有机质、全磷、全氮、碱解氮、速效钾和速效磷含量为研究对象，研究其相应的统计规律，结果表明土壤各养分属性的变异系数在6.3%~35.61%之间，pH为5.3%；采用地统计的半方差函数分析，发现有机质，全氮，碱解氮和速效钾在一定范围内存在空间相关性；采用克立格方法进行最优内插，绘制了养分含量分布图，并对其空间变异进行了初步分析。

The NT increase the Gliadin, Globulincontent and decrease the Glutenin, Albumin contents compared with CT.1.3 In NT, 7 days after anthesis and in the sequel, flag leaf NR activityshows higher, photosynthetic ration and transpiration ratio 16 days after 5anthesis and in the sequel higher and have longer continuance ability thanthose in CT.1.4 In NT, total nitrogen contents in crop and fertilizer utilization efficiencyare lower than those in CT.2 The ecology characteristics of wheat field of NT2.1 The contents of hydrolyzable nitrogen,available phosphorus andpotassium in 0-20cm soil layer are all higher in NT fertilization zone thanthose in CT, While the differentiations are in different levels.

肥料利用率免耕各处理均显著低于常规处理。1.5 和常规耕翻处理相比，免耕处理玉米秸秆腐解率无显著差异。冬前是秸秆腐解的主要时期。小麦生育后期肥料对秸秆腐解的促进作用显著，肥料用量与秸秆腐解率存在显著相关性。2 免耕对土壤理化性状的影响2.1 在成熟期免耕施肥区，和常规耕翻处理相比，免耕处理 N3T 对0-40cm 土层碱解氮含量影响不显著。免耕处理 N3T 显著提高了 0-20cm 土层土壤速效磷和速效钾含量，对 20cm 以下土层速效磷和速效钾含量无显著影响。

The content of endogenous hormones, including IAA, ABA, GA3 and ZT, and phenol compounds were measured using HPLC, anti that of total sugar and total nitrogen were analyzed by the methods of hyposulphite titration and nitrogen.

采用高效液相色谱法测定插穗内源激素（IAA、ABA、GA3和ZT）和酚类化合物的含量，硫代硫酸钠滴定法测定总糖和凯式定氮法测定总氮含量。

The comparison between nitrogen and phosphorus show that the key role of the infiltrative quantity of moisture is nitrogen.

氮磷肥对下渗水累积量存在交互作用，随着施氮水平的增加，磷对土壤下渗水量的增加作用更加明显。

I can not negligent, he should do what?

我不能不在意了，他要做什么呢？

It is very dangerous to swim in the river alone.

一个人到河里游泳是很危险的。