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首页> 外文期刊>International journal of soil science >Content and Distribution of Nitrogen Forms in Some Black Cotton Soils in Akko LGA, Gombe State, Nigeria
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Content and Distribution of Nitrogen Forms in Some Black Cotton Soils in Akko LGA, Gombe State, Nigeria

机译：尼日利亚冈贝州阿科LGA某些黑棉土壤中氮形态的含量和分布

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摘要

A study was conducted to determine the content and distribution of nitrogen forms in some soils of Akko Local Government Area (LGA) of Gombe State, Nigeria. A total of 60 composite soil samples were collected from 0-15 and 15-30 cm depths from purposively selected representative locations in the study area and analyzed using standard procedures. Results obtained showed that the soils were generally low in nitrogen, with organic nitrogen accounting for about 72.8% of the total nitrogen in the soils. The nitrogen forms followed the trend: total nitrogen>total organic nitrogen >NH4-N>NO3ˉ-N>NO2ˉ-N in content, while each of the nitrogen forms was more or less uniformly distributed in the study area. Owing to the low available nitrogen content in the soil (<12% of the total N), it is recommended that supplementary nitrogen application and improvement of the drainage conditions of all the soils be employed to improve the nitrogen status of the soils.
机译：进行了一项研究，以确定尼日利亚冈贝州阿克科地方政府区域（LGA）的某些土壤中氮形态的含量和分布。从研究区域中有意选择的代表性位置的0-15和15-30 cm深度收集了总共60个复合土壤样品，并使用标准程序进行了分析。获得的结果表明，土壤中的氮通常较低，有机氮约占土壤总氮的72.8％。氮的形态遵循以下趋势：总氮>总有机氮> NH 4 -N> NO 3 ˉ-N> NO 2 ˉ-氮含量，而每种氮形态或多或少地均匀分布在研究区域。由于土壤中的有效氮含量低（＜N总量的12％），建议对土壤进行补充氮肥施用和改善所有土壤的排水条件，以改善土壤的氮素状况。

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