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Copyright of Advances in Earth Science (1001-8166) is the property of Advances in Earth Science Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Journal of Agricultural Resources & Environment / Nongye Ziyuan yu Huanjing Xuebao is the property of Journal of Agricultural Resources & Environment Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Journal of Nanjing Agricultural University / Nanjuing Nongye Daxue Xuebao is the property of Journal of Nanjing Agricultural University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Journal of Nanjing Agricultural University / Nanjuing Nongye Daxue Xuebao is the property of Journal of Nanjing Agricultural University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Nanjing Agricultural University / Nanjuing Nongye Daxue Xuebao is the property of Journal of Nanjing Agricultural University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Journal of Nanjing Agricultural University / Nanjuing Nongye Daxue Xuebao is the property of Journal of Nanjing Agricultural University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Agro-Environment Science is the property of Journal of Agro-Environment Science Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

[Ｏｂｊｅｃｔｉｖｅｓ] Ｔｈｅ ｏｂｊｅｃｔｉｖｅ ｏｆ ｔｈｉｓ ｓｔｕｄｙ ｗａｓ ｔｏ ａｎｓｗｅｒ ｗｈｙ ｂｉｏｃｈａｒ ａｍｅｎｄｍｅｎｔ ｉｎｃｒｅａｓｅｓ ｃｒｏｐ ｙｉｅｌｄ ａｎｄ ｉｍｐｒｏｖｅｓ ｌｅａｆ ｑｕａｌｉｔｙ. [Ｍｅｔｈｏｄｓ]Ｓｉｍｐｌｅ ｍｅｔｈｏｄｓ ｗｅｒｅ ｕｓｅｄ ｔｏ ｉｓｏｌａｔｅ ｔｈｅ ｄｉｆｆｅｒｅｎｔ ｃｏｍｐｏｎｅｎｔｓ ｏｆ ｂｉｏｃｈａｒ. Ｔｈｅｓｅ ｃｏｍｐｏｎｅｎｔｓ ｉｎｃｌｕｄｅ ｔｈｅ ｏｒｇａｎｉｃ ｃａｒｂｏｎ ｗｉｔｈｏｕｔ ｓｏｌｕｂｌｅ ｎｕｔｒｉｅｎｔｓ( ｎａｍｅｄ ａｓ ｗａｓｈｅｄ ｂｉｏｃｈａｒ)ꎬｓｏｌｕｂｌｅ ｎｕｔｒｉｅｎｔｓ( ｅ.ｇ.ꎬｎｉｔｒｏｇｅｎꎬｐｈｏｓｐｈｏｒｕｓ ａｎｄ ｐｏｔａｓｓｉｕｍ) ｗｉｔｈｏｕｔ ｏｒｇａｎｉｃ ｃａｒｂｏｎ( ｂｉｏｃｈａｒ ａｓｈ)ꎬａｎｄ ｔｈｅ ｐａｒｔ ｔｈａｔ ｉｓ ｃｏｍｐｏｓｅｄ ｏｆ ｌｏｗ￣ｍｏｌｅｃｕｌａｒ￣ｗｅｉｇｈｔ ｏｒｇａｎｉｃ ｓｕｂｓｔａｎｃｅｓ( ｂｉｏｃｈａｒ ｅｘｔｒａｃｔｓ). Ｗｅ ｈｙｐｏｔｈｅｓｉｚｅｄ ｔｈａｔꎬａｆｔｅｒ ａｍｅｎｄｉｎｇ ｉｎｔｏ ｓｏｉｌｓꎬｔｈｅ ｔｈｒｅｅ ｃｏｍｐｏｎｅｎｔｓ ｃｏｕｌｄ ｒｅｐｒｅｓｅｎｔ ｔｈｅ ｅｆｆｅｃｔ ｏｆ ｓｏｉｌ ｐｈｙｓｉｃａｌ ｐｒｏｐｅｒｔｙ ｉｍｐｒｏｖｅｍｅｎｔ (ｗａｓｈｅｄ ｂｉｏｃｈａｒ)ꎬ ｎｕｔｒｉｅｎｔｓ ａｄｄｉｔｉｏｎ( ｂｉｏｃｈａｒ ａｓｈ) ａｎｄ ｈｏｒｍｏｎｅ ｓｔｉｍｕｌａｔｉｏｎ( ｂｉｏｃｈａｒ ｅｘｔｒａｃｔｓ). Ａ ｐｏｔ ｔｒｉａｌ ｗａｓ ｃｏｎｄｕｃｔｅｄ ｔｏ ｉｎｖｅｓｔｉｇａｔｅ ｔｈｅ ｅｆｆｅｃｔ ｏｆ ｄｉｆｆｅｒｅｎｔ ｂｉｏｃｈａｒ ｃｏｍｐｏｎｅｎｔｓ ｏｎ ｔｈｅ ｙｉｅｌｄꎬｌｅａｆ ｑｕａｌｉｔｙ ｏｆ ｎｏｎ￣ｈｅａｄｉｎｇ Ｃｈｉｎｅｓｅ ｃａｂｂａｇｅ( Ｂｒａｓｓｉｃａ ｃａｍｐｅｓｔｒｉｓ ｓｓｐ. ｃｈｉｎｅｓｉｓ)ａｎｄ ｓｏｉｌ ｐｒｏｐｅｒｔｉｅｓ. [ Ｒｅｓｕｌｔｓ] Ｒｅｓｕｌｔｓ ｓｈｏｗｅｄ ｔｈａｔ ｔｈｅ ａｄｄｉｔｉｏｎ ｏｆ ｄｉｆｆｅｒｅｎｔ ｂｉｏｃｈａｒ ｃｏｍｐｏｎｅｎｔｓ ｈａｄ ｎｏ ｅｆｆｅｃｔ ｏｎ ｔｈｅ ｙｉｅｌｄ ａｎｄ ｒｏｏｔ ｂｉｏｍａｓｓ ｏｆ Ｃｈｉｎｅｓｅ ｃａｂｂａｇｅ. Ｈｏｗｅｖｅｒꎬｉｎ ｔｈｅ ｈｉｇｈ ｆｅｒｔｉｌｉｔｙ ｓｏｉｌꎬｂｉｏｃｈａｒ ｅｘｔｒａｃｔｓ ａｎｄ ｗａｓｈｅｄ ｂｉｏｃｈａｒ ａｄｄｉｔｉｏｎ ｉｎｃｒｅａｓｅｄ ｔｈｅ ｍａｓｓ ｒａｔｉｏ ｏｆ ｒｏｏｔ ｔｏ ａｂｏｖｅｇｒｏｕｎｄ ｂｉｏｍａｓｓ. Ｔｈｅ ａｄｄｉｔｉｏｎ ｏｆ ｄｉｆｆｅｒｅｎｔ ｂｉｏｃｈａｒ ｃｏｍｐｏｎｅｎｔｓ ｄｅｃｒｅａｓｅｄ ｔｈｅ ｃｏｎｃｅｎｔｒａｔｉｏｎｓ ｏｆ ｎｉｔｒａｔｅ ｉｎ ｔｈｅ ａｂｏｖｅ ｇｒｏｕｎｄ ｂｉｏｍａｓｓ ｂｙ ４１％－８４％. Ｉｎ ｔｈｅ ｈｉｇｈ ｆｅｒｔｉｌｉｔｙ ｓｏｉｌꎬｗａｓｈｅｄ ｂｉｏｃｈａｒ ａｄｄｉｔｉｏｎ ｉｎｃｒｅａｓｅｄ ｔｈｅ ｃｏｎｃｅｎｔｒａｔｉｏｎ ｏｆ ｖｉｔａｍｉｎ Ｃ ｉｎ ｔｈｅ ａｂｏｖｅ ｇｒｏｕｎｄ ｂｉｏｍａｓｓꎻｗｈｉｌｅꎬｉｎ ｔｈｅ ｌｏｗ ｆｅｒｔｉｌｉｔｙ ｓｏｉｌꎬｂｉｏｃｈａｒ ｅｘｔｒａｃｔｓ ａｄｄｉｔｉｏｎ ｉｎｃｒｅａｓｅｄ ｔｈｅ ｃｏｎｃｅｎｔｒａｔｉｏｎ ｏｆ ｖｉｔａｍｉｎ Ｃ. Ｔｈｅ ａｄｄｉｔｉｏｎ ｏｆ ｄｉｆｆｅｒｅｎｔ ｂｉｏｃｈａｒ ｃｏｍｐｏｎｅｎｔｓ ｉｎｃｒｅａｓｅｄ ｔｈｅ ｃｏｎｃｅｎｔｒａｔｉｏｎ ｏｆ Ｋ ｉｎ ｔｈｅ ａｂｏｖｅ ｇｒｏｕｎｄ ｂｉｏｍａｓｓ ｂｙ ４３％ － ８８％ ａｃｒｏｓｓ ｔｒｅａｔｍｅｎｔｓ. Ｔｈｅｒｅ ｗａｓ ａ ｓｉｇｎｉｆｉｃａｎｔ ｎｅｇａｔｉｖｅ ｃｏｒｒｅｌａｔｉｏｎ ｂｅｔｗｅｅｎ ｎｉｔｒａｔｅ ａｎｄ Ｋ ｉｎ ｔｅｒｍｓ ｏｆ ｔｈｅｉｒ ｃｏｎｃｅｎｔｒａｔｉｏｎ ｉｎ ｔｈｅ ａｂｏｖｅ ｇｒｏｕｎｄ ｂｉｏｍａｓｓ. [Ｃｏｎｃｌｕｓｉｏｎｓ]Ｔｈｅ ａｄｄｉｔｉｏｎ ｏｆ ｄｉｆｆｅｒｅｎｔ ｂｉｏｃｈａｒ ｃｏｍｐｏｎｅｎｔｓ ｈａｄ ｎｏ ｅｆｆｅｃｔ ｏｎ ｔｈｅ ｙｉｅｌｄ ｏｆ ｎｏｎ￣ｈｅａｄｉｎｇ Ｃｈｉｎｅｓｅ ｃａｂｂａｇｅꎻ ｈｏｗｅｖｅｒꎬｔｈｅｉｒ ａｄｄｉｔｉｏｎ ｄｅｃｒｅａｓｅｄ ｔｈｅ ｃｏｎｃｅｎｔｒａｔｉｏｎ ｏｆ ｎｉｔｒａｔｅ ｗｈｉｌｅ ｉｎｃｒｅａｓｅｄ ｔｈｅ ｃｏｎｃｅｎｔｒａｔｉｏｎ ｏｆ Ｋ ｉｎ ｔｈｅ ａｂｏｖｅ ｇｒｏｕｎｄ ｂｉｏｍａｓｓ ｏｆ ｎｏｎ￣ｈｅａｄｉｎｇ Ｃｈｉｎｅｓｅ ｃａｂｂａｇｅ. Ｉｎｃｒｅａｓｅｄ Ｋ ｕｐｔａｋｅ ｍａｙ ｃｏｎｔｒｉｂｕｔｅ ｔｏ ｔｈｅ ｒｅｄｕｃｔｉｏｎ ｏｆ ｎｉｔｒａｔｅ ｉｎ ｔｈｅ ａｂｏｖｅ ｇｒｏｕｎｄ ｂｉｏｍａｓｓ ｕｎｄｅｒ ｂｉｏｃｈａｒ ｓｏｉｌ ａｍｅｎｄｍｅｎｔ. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Nanjing Agricultural University / Nanjuing Nongye Daxue Xuebao is the property of Journal of Nanjing Agricultural University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Nanjing Agricultural University / Nanjuing Nongye Daxue Xuebao is the property of Journal of Nanjing Agricultural University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Nanjing Agricultural University / Nanjuing Nongye Daxue Xuebao is the property of Journal of Nanjing Agricultural University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)