Stevenson K J. Nitrogen-Organic Forms. Methods of Soil Analysis, Part 3. Chemical Methods. Book Series 5. ASA-SSSA, Madison, Wisconsin, 1996:1185 - 1200.

 
  • 徐阳春;等.;长期施用不同有机肥对土壤各粒级复合体中C、N、P含量与分配的影响
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