Humus acids of soils

समान संसाधन

• Humus acids of soils /
  द्वारा: Orlov, D. S.
  प्रकाशित: (1985)
• Physical and chemical characteristics of aquatic humus /
  द्वारा: Gjessing, Egil T.
  प्रकाशित: (1976)
• Soil Chemistry
  द्वारा: Orlone, D.S
  प्रकाशित: (1992)
• Soil organic matter in sustainable agriculture
  द्वारा: Magdoff, Fred; Editor, और अन्य
  प्रकाशित: (2004)
• Fertilizer additives and soil conditioners
  द्वारा: Ranney, M.William
  प्रकाशित: (1978)