秸秆还田增加了土壤全氮和无机氮含量。
Maize straw returning to the field can increase the soil total nitrogen and inorganic nitrogen content.
秸秆还田增加了土壤全氮和无机氮含量。
The amount of nitrogen needed will increase as yield increases.
它占土壤全氮含量百分数则是随剖面深度增大而增大。
The percentage of fixed ammonium to total N in soils steadily increased with the increasing of depth.
而优势物种和功能群组成对土壤全氮的影响作用相对较弱。
Contrast to soil available nitrogen, soil total nitrogen was not influenced by the environmental factors.
人工林土壤全氮与土壤有机碳含量之间呈显著的线性正相关。
The contents of total nitrogen had a significant positive relationship with the soil organic carbon.
三个林型表层土壤全氮含量季节变化规律明显不同，总体变化幅度都不大。
Total nitrogen contents of surface soil in three forest types changed with seasons distinctly, and overall extents were not big.
追氮处理对土壤全氮没有明显的影响，但对土壤大麦碱解氮的影响比较大。
Topdressing nitrogen treatment had no obvious effect to total nitrogen in soil, but it had a stronger effect to alkalined-nitrogen.
结果表明，长期施用化肥和有机肥对土壤全氮和土壤有机氮组成有显著影响。
Results showed that soil total nitrogen and organic nitrogen fractions were significantly influenced by long-term application of chemical fertilizer and manure.
生姜专用腐植酸复混肥提高了土壤有机质含量，土壤全氮、碱解氮和速效磷含量。
Ginger specific humic acid fertilizer increased the soil organic matter content, total nitrogen content, available nitrogen content, available phosphorus content.
进入耗竭阶段后，土壤全氮又不同程度的下降，只是不同处理变化速度不同而已。
Total-N was declined with different speed during the exhausted stage. Farm manure, chemical fertilizer and straw had different sustainable effects.
玉米大豆混作系统在低氮土壤上主要消耗土壤速效氮，在高氮土壤上主要消耗土壤全氮。
Rapidly available and total nitrogens were consumed respectively in low and high nitrogen soils in maize and soybean mixcropping system.
第四纪红土土壤全氮含量较高，但是其碱解氮含量比花岗岩母质土壤和紫色砂页岩土壤低。
Quaternary red clay total nitrogen content was highest, but the available nitrogen content was lower than Granite soil and Purple sandy shale soil.
以向海湿地为研究对象，研究了封闭性湿地和开放性湿地土壤全氮含量的季节动态变化特征及其氮储量。
The Fulaowenpao and Erbaifangzi wetlands were chosen as typical sites to study the characteristics of seasonal dynamics of total nitrogen in marsh soils from both closed and open wetlands.
研究了川中丘陵区紫色水稻土土壤腐殖质碳的剖面分布及其组成特征，探讨了土壤腐殖质与活性有机碳、土壤全氮含量的关系。
The paper studied the distribution of humus carbon in soils sections and the characteristics of humus carbon fraction of purple paddy in Mid-Sichuan Hilly Region.
研究了川中丘陵区紫色水稻土土壤腐殖质碳的剖面分布及其组成特征，探讨了土壤腐殖质与活性有机碳、土壤全氮含量的关系。
The distribution of organic carbon and labile organic carbon along soil profile in swamp soil and peat soil in Ruoergai alpine wetland were studied.
对毛竹土壤有机碳密度影响最大的为有机碳含量，对土壤有机碳密度的影响次之的为土壤全氮量，土壤有效磷量对其影响程度也较大。
The biggest influence to soil organic carbon density was organic carbon content, the next was total nitrogen, and content of soil available phosphorus was also influenced soil organic carbon density.
中度放牧并未使草地牧草产量和红三叶的重要值降低，同时使草地红三叶均质度系数保持在远低于1.0水平以下，但使土壤全氮含量下降0.085%。
Meantime it keeps the coefficient of homogeneity of red clover far below the 1.0 level but causes the total nitrogen content of soil to decrease by 0.085%.
土壤有机质和全氮含量也自上而下显著的下降，表现出明显的表层聚集现象。
The soil organic carbon and total nitrogen contents obviously decreased and shown an upper-accumulated pattern.
本试验是探索转化酶的活性及其与土壤有机质和全氮的关系。
This paper is to study the activity of saccharase and the relation between the activity and the soil organic matter and all the nitrogen.
结果表明，采取改垄向、带状间作、机械灭茬、增施农肥、配方施用化肥等综合培肥措施后，土壤有机质净积累0．023％，全氮净积累0．087％。
The results Showed that soil organic matter increased 0.023% after the synthetical amelioration method was used to it. The total N increased 0.087%.
在湿地土壤养分中，有机质、全钾对潜在土壤效益的贡献率大，而全氮、全磷的贡献率最低。
Contribution rate of the organic matter and kalium upon latent soil benefit was the biggest, and total phosphorus 'was the least.
土壤有机质、全氮、全磷、速效氮具有中等空间自相关性。
Soil organic matter, total nitrogen, total phosphorus, available nitrogen had middle spatial correlation patterns.
结果表明，全氮、碱解氮和有机质是黄土丘陵区人工林土壤主要的肥力指标，其含量能更好地反映土壤肥力状况。
The results showed that total nitrogen, available nitrogen and organic matter were the main fertility indicators for soil fertility evaluation in the planted forest land on the Loess Plateau.
相思树种明显地增加了沿海沙地土壤中全氮和全碳的含量，且增加的量以沙地土壤的表层最为显著。
Acacia tree species increased significantly the content of total N and total C and the increment of topsoil of sandy land was significant.
土壤动物的类群数、个体数量与土壤有机质、全氮的含量呈明显的正相关；
The numbers of individuals and groups of soil fauna were significantly and positively related to contents of organic matter and total nitrogen in the soil.
研究结果表明，温度和水分在短期内对土壤有机碳和全氮影响不大。
The results indicated that temperature and moisture had little effects on organic carbon and total nitrogen in soils during short-term incubation.
研究结果表明，温度和水分在短期内对土壤有机碳和全氮影响不大。
The results indicated that temperature and moisture had little effects on organic carbon and total nitrogen in soils during short-term incubation.
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