Long term applying P separately increases contents of hydrolysable N, aminoacid N and amino sugar N in topsoil by 415.55 mg/ kg, 58.39 mg/ kg, 169.83 mg/ kg and 107.01 mg/ kg;

  • 连续施P处理根层水解总氮、氨态氮、氨基酸氮和氨基糖氮含量分别比对照增加413.55mg/kg、58.39mg/kg、169.83mg/kg和107.01mg/kg;

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