ประโยคภาษาจีน : 中文句子 |
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yìng yòng 应用 shì zōng 示踪 jì shù 技术 yán jiū 研究 hǎi nán 海南 huā gāng yán 花岗岩 zhuān hóng rǎng 砖红壤 wèng cài 蕹菜 zāi péi 栽培 tiáo jiàn 条件 xià 下 niào sù 尿素 dàn 氮 de 的 qù xiàng 去向 |
Experiments were carried out with 15N-urea tracer to study the behaviors of urea-N under the cultural conditions of water convolvulus in latosol from granite in Hainan. |