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chaf

  • 网络擦伤;肝动脉血流量
chafchaf
  1. Effects of various compound humic acid fertilizers ( CHAF ) made from lignites by various treatments on emergency rate , plant height , leaf area , accumulation rate of dry materials and biological yield .

    本项研究初步探明了褐煤不同处理方法制成的腐植酸复合肥料对玉米、小麦出苗率、株高、叶面积、干物质累积速度、生物产量的影响;