Lihat Juga

• Humic Acid and Water Management to Decrease Ferro (Fe2+) Solution and Increase Productivity of Established New Rice Field
  oleh: Herviyanti, .; Department of Soil Science, Faculty of Agriculture, Andalas University, Limau Manis, Padang 25163, et al.
  Terbitan: (2013)
• Humic Acid and Water Management to Decrease Ferro (Fe2+) Solution and Increase Productivity of Established New Rice Field
  oleh: . Herviyanti; Department of Soil Science, Faculty of Agriculture, Andalas University, Limau Manis, Padang 25163, et al.
  Terbitan: (2012)
• Humic Acid and Water Management to Decrease Ferro (Fe2+) Solution and Increase Productivity of Established New Rice Field
  oleh: . Herviyanti; Department of Soil Science, Faculty of Agriculture, Andalas University, Limau Manis, Padang 25163, et al.
  Terbitan: (2012)
• The Properties of Humic Acids Extracted from Four Sources of Organic Matters and Their Ability to Bind Fe2+ at New Established Rice Field
  oleh: Herviyanti, Herviyanti; Department of Soil Science, Faculty of Agriculture, Andalas University Limau Manis, Padang 25163. Indonesia., et al.
  Terbitan: (2018)
• Potency of Na-Humate from Subbituminous and how to do Incubation with Fosfor-Fertilizer to Increase Upland Rice Production at Acidic Mineral Soil
  oleh: Herviyanti,, et al.
  Terbitan: (2012)