total organic nitrogen

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

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。

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

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。

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The adjunction of weathered coal can increase soil organic matter, soil total nitrogen and available K content. 4.

风化煤的添加可增加土壤有机质含量、全氮和速效钾含量。

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The thickness of the litter layer under spruce fir was greater, the decomposition intensity was bigger, and the organic matter, total nitrogen, available phosphorus were higher, comparing with that under the pure Larix forest.

云冷杉林的枯枝落叶层的厚度和分解状况优于落叶松纯林，且有机质、全氮、速效磷含量高；

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Compared with chemical fertilizer, organic manure treatments improved total nitrogen, nicotine and protein content of the upper leaves.

与无机肥相比，有机肥一般能提高上部叶的总氮、烟碱及蛋白质含量。

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The characteristics of seasonal changes in the mass fractions of organic carbon and total nitrogen at three different layers of soil in different Phyllostachys pubescens stands were studied by the orientation research method.

应用定位研究法探明位于浙江省富阳市春建乡不同结构毛竹Phyllostachys pubescens林土壤0~10,10~30和30~50cm等3个层次有机碳和全氮质量分数的季节变化特征。

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